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AssuredSAN 3000 Series RAIDar User Guide

1. Degraded At least one component is degraded Fault At least one component has a fault N A Health is not available e The system s total storage space e The health quantity and storage space of enclosures disks and vdisks e The quantity and storage space of volumes and snap pools e The quantity of snapshots and task schedules e Configuration limits licensed features and versions of controller firmware and hardware For descriptions of storage space color codes see About storage space color codes on page 31 Select a component to see more information about it System properties When you select the System component a table shows the system s health name contact location information description vendor name product ID product brand SCSI vendor ID SCSI vendor ID and supported locales languages A second table shows the system s redundancy mode and status and each controller s status Enclosure properties When you select the Enclosure component a table shows each enclosure s health ID WWN vendor model and quantity of disk slots Disk properties When you select the Disks component a table shows each disk s health enclosure ID slot number serial number vendor model firmware revision type usage status and size How Used values are described in the disk properties section of Viewing information about a vdisk on page 90 Vdisk properties When you select the Vdisks component a table shows eac
2. A CAUTION Volume mapping changes take effect immediately Make changes that limit access to volumes when the volumes are not in use Be sure to unmount unpresent unmap a volume before changing the volume s LUN EY NOTE You cannot map the secondary volume of a replication set EY NOTE When mapping a volume to a host using the Linux ext3 file system specify read write access otherwise the file system will be unable to mount present map the volume and will report an error such as unknown partition table To view host mappings In the Configuration View panel right click a host and select Provisioning gt Manage Host Mappings The main panel shows the following information about volumes mapped to the host Type Explicit or Default Settings for an explicit mapping override the default mapping Name Volume name Serial Number Volume serial number Ports Controller host ports through which the volume is mapped to the host LUN Volume identifier presented to the host Access Volume access type read write read only no access masked or notmapped To create an explicit mapping uk won In the Maps for Host table select the Default mapping to override Select Map Set the LUN and select the ports and access type Click Apply A message specifies whether the change succeeded or failed Click OK The mapping becomes Explicit with the new settings To modify an explicit mapping 1 2
3. Description cpqHoMibStatusArray Octet O O Octet 1 overall status O Not available 1 Unknown other 2 OK normal 3 Degraded warning 4 Failed critical Octet 2 system flags 9 device is not a server and web based management is enabled An array of MIB status structures Octets 0 3 in block O are reserved for systems management and serve as an aggregate of the other MIBs Octet 3 device type 14 enclosure For example 00 02 09 14 hex cpqHoGUID Globally unique identifier formed For example 4813213CL8Y40991 from the product ID and serial number External details for certain FA MIB 2 2 objects Tables in this section specify values for certain objects described in Table 11 External details for connUnitRevsTable Table 12 connUnitRevsTable index and description values connUnitRevsindex connUnitRevsDescription Firmware revision for Storage Controller Controller A Firmware revision for Storage Controller Controller B Firmware revision for Memory Controller Controller A Firmware revision for Memory Controller Controller B Firmware revision for Storage Controller loader Controller A Firmware revision for Storage Controller loader Controller B Firmware revision for Management Controller Controller A SO CO NI DA O BR O N Firmware revision for Management Controller Controller B Firmware revision for
4. Selecting the secondary volume Specify the secondary volume You can select an existing replication prepared volume or specify to create a volume in an existing vdisk that has sufficient available space for the replicated data If no existing volumes are appropriate to use the Secondary Volume options will be grayed out but you can still select a vdisk To specify the secondary volume 1 Either Select Create new volume on vdisk and select the vdisk where you want the secondary volume to be created e Select Use existing replication prepared volume and select an existing replication prepared volume to be the secondary volume Only replication prepared volumes are listed for selection 2 Select the link type used between the two systems 3 Click Next to continue Confirming replication settings Confirm that the values listed in the wizard panel are correct e If they are not correct click Previous to return to previous steps and make necessary changes e If they are correct click Finish to apply the setting changes and finish the wizard Replicating a volume Ly E If the system is licensed to use remote replication you can create a replication set that uses the selected volume as the primary volume and to immediately start or schedule replication The primary volume can be a standard volume or a master volume To create a replication set you must select a secondary system and a secondary vdisk or volume The seco
5. 0 daw dd Lad Bole AAA aR oe RED me a 16 Tips for using the main window ri eS e wy de adc a re ew Boa Wan eae A ate ash cas 16 Tips for using the help window soria a 484 60 40a iG Ra R eee RAG TE eR EE ea 17 System Concepts i i each behe Rado kde a Lee ode Oh EGOS O49 04 a 17 About US r ACCOUN S accu vues Ladede DA tad ah eave 17 Related IODC AAA N GR KG RAS AD a EY eae ae De oR A 18 About vdisks eo areal ats fa wees ae O A ecb at ane ates 18 o A lake secd reared dwat 24a dt Gah ta 19 ABOUkSDATES a ee a ee ee ee eee eee ee eee ee ee ee eee ee ee ee re ee ee 19 ale AMES A REA RW eal WSR Ay HR hs iid we ha 19 About volumes A as mete as aoe hake eee Baca a eed e ag ate 20 Related 1OpIGSs soci dcdaw bids ii eee be Seeblick CACA ads A E A 20 o 41 24 coher ee See hee ee see eee eee sakes ee egh a aa a a a ba 20 Related TOPICS ie dare wid an wilh ree ath WO MA ah Kh head WA ae hg ea WH Ae eh we Died IS 21 About volume mapping sna diace pad wage awa dad maddy hate Rawal Casta baad adi ES 21 Related topics A 22 About volume cache options 43 04 ead dw ooh cee Ob aw as SS REEDS ROAR OREM RRS 22 Using write back or writethrough caching sv ios ici 44 S40 WSR bi eae ah 22 Optimizing read ahead Caching eis ion ss acee ea geese gaseageany ed oes pd oewadese aes 23 Related A ERA DAR OLD EHH EES RY LEE ATMS Ae ORS 23 About managing remote systems oso e esa b ee eke de ee Ne bee Renee ee a 24 o a vy de bee we aR SH RD dhe A Ee Be SR Ol as 24 Abou
6. RSC The vdisk is being scrubbed e Size Disk capacity e Enclosure Name of the enclosure containing the disk Serial Number Disk serial number e Status Up operational or Not Present The Graphical tab shows the locations of the vdisk s disks in system enclosures and each disk s Health and State Volume properties When you select the Volumes component the Volumes table shows The volume s name serial number and size e The name of the vdisk containing the volume Snap pool properties When you select the Snap Pools component the Snap Pools table shows e The snap pool s name serial number size and free space e The quantity of master volumes and snapshots associated with the snap pool e The name of the vdisk containing the snap pool Viewing information about a volume 92 In the Configuration View panel right click a volume and select View gt Overview The Volume Overview table shows e The capacity and space usage of the volume e The quantity of mappings for the volume e The quantity of task schedules for the volume e As described in Viewing replication properties addresses and images for a volume on page 119 the quantities of replication addresses and replication images for the volume For descriptions of storage space color codes see About storage space color codes on page 31 Select a component to see more information about it Viewing system status Volume properties When you select the V
7. a Replicate the secondary volume page 112 to synchronize at the last valid common sync point This will replicate any data changes made in the secondary volume back to the original primary volume EY NOTE An administrator can mount present map this snapshot and the snapshot taken in step 1 and compare them to verify any discrepancies b In the Configuration View panel right click the secondary volume and select Provisioning gt Set Replication Primary Volume c In the main panel select the primary volume in the list d Click Set Replication Primary Volume A message indicates whether the task succeeded or failed 3 On the primary system a In the Configuration View panel right click the primary volume and select Provisioning gt Set Replication Primary Volume b In the main panel select the primary volume in the list c Click Set Replication Primary Volume A message indicates whether the task succeeded or failed If it succeeded in the Configuration View panel the primary volume is designated the Primary Volume and the secondary volume is re designated the Secondary Volume Viewing replication properties addresses and images for a volume In the Configuration View panel right click a volume and select View gt Overview The Volume Overview table shows e As described in Viewing information about a volume on page 92 the capacity and space usage of the volume the quantity of mappings for the volume and the q
8. 72 To modify a schedule 1 In the Configuration View panel right click the system or a volume or a snapshot and select Provisioning gt Modify Schedule 2 In the main panel select the schedule to modify 3 Set the options Snapshot Prefix Optionally change the default prefix to identify snapshots created by this task The prefix is case sensitive cannot include a comma double quote or backslash and can have a maximum of 14 bytes Automatically created snapshots are named prefix_sn where n starts at 001 Snapshots to Retain Select the number of snapshots to retain When the task runs the retention count is compared with the number of existing snapshots e If the retention count has not been reached the snapshot is created e If the retention count has been reached the volume s oldest snapshot is unmapped reset and renamed to the next name in the sequence Start Schedule Specify a date and a time in the future to be the first instance when the scheduled task will run and to be the starting point for any specified recurrence Provisioning the system Date must use the format yyyy mm dd e Time must use the format hh mm followed by either AM PM or 24H 24 hour clock For example 13 00 24H is the same as 1 00 PM e Recurrence Specify interval at which the task should run The default is 30 minutes for a replication task or 1 minute for other tasks e For a snapshot schedule set the interval to at least 2
9. As processing completes the deleted items are removed from the Configuration View panel Managing global spares You can designate a maximum of eight global spares for the system If a disk in any redundant vdisk RAID 1 3 5 6 10 50 fails a global spare is automatically used to reconstruct the vdisk At least one vdisk must exist before you can add a global spare A spare must have sufficient capacity to replace the smallest disk in an existing vdisk 58 The vdisk remains in critical status until the parity or mirror data is completely written to the spare at which time the vdisk returns to fault tolerant status For RAID 50 vdisks if more than one sub vdisk becomes critical reconstruction and use of spares occur in the order sub vdisks are numbered To change the system s global spares 1 2 3 In the Configuration View panel right click the system and select Provisioning gt Manage Global Spares The main panel shows information about available disks in the system Existing spares are labeled GLOBAL SP e In the Disk Sets table the number of white slots in the Disks field shows how many spares you can add e In the enclosure view or list only existing global spares and suitable available disks are selectable Select spares to remove disks to add as spares or both Click Modify Spares If the task succeeds the panel is updated to show which disks are now global spares Provisioning the system Creating a v
10. Each mapping that uses the default settings is updated To delete the default mapping 1 Clear Map 2 Click Apply A message specifies whether the change succeeded or failed 3 Click OK Each mapping that uses the default settings is updated 62 Provisioning the system Changing a volume s explicit mappings A CAUTION Volume mapping changes take effect immediately Make changes that limit access to volumes when the volumes are not in use Be sure to unmount unpresent unmap a volume before changing the volume s LUN EY NOTE You cannot map the secondary volume of a replication set Ef NOTE When mapping a volume to a host using the Linux ext3 file system specify read write access otherwise the file system will be unable to mount present map the volume and will report an error such as unknown partition table To view volume mappings In the Configuration View panel right click a volume and select Provisioning gt Explicit Mappings The main panel shows the following information about the volume s mappings Type Explicit or Default Settings for an explicit mapping override the default mapping Host ID WWPN or IQN Name Host name Ports Controller host ports through which the host is mapped to the volume LUN Volume identifier presented to the host Access Volume access type read write read only no access masked or notmapped To create an explicit mapping WR wn a In the Maps for V
11. Fault The vdisk can perform I O functions for hosts but is not fault tolerant Review the status information and take the appropriate action such as replacing a disk You can use the vdisk but resolve the problem as soon as possible N A Health is not available Name Vdisk name Size Total storage space in the vdisk Free Available space in the vdisk RAID RAID level of the vdisk and all of its volumes Status e CRIT Critical The vdisk is online but isn t fault tolerant because some of its disks are down FTDN Fault tolerant with down disks The vdisk is online and fault tolerant but some of its disks are down FTOL Fault tolerant and online e OFFL Offline Either the vdisk is using offline initialization or its disks are down and data may be lost AssuredSAN 3000 Series RAlDar User Guide 89 QICR Quarantined critical The vdisk is offline and quarantined because at least one disk is missing however the vdisk could be accessed For instance one disk is missing from a mirror or RAID 5 e QTDN Quarantined with down disks The vdisk is offline and quarantined because at least one disk is missing however the vdisk could be accessed and would be fault tolerant For instance one disk is missing from a RAID 6 e QTOF Quarantined offline The vdisk is offline and quarantined because multiple disks are missing and user data is incomplete e STOP The vdisk is stopped e UNKN Unknown e UP Up The
12. In a few seconds the following changes occur in the Configuration View panel e Under both the primary volume and the secondary volume a replication image appears Removing replication from a volume If the system is licensed to use remote replication and you no longer want to replicate a volume you can remove its replication set When a replication set is removed e A rollback is automatically performed to the latest available snapshot on the secondary volume to ensure that data is consistent e Replication volumes associated with the replication set are converted to master volumes e Any replication images associated with the replication volumes are converted to standard snapshots Snapshots are converted regardless of the number of snapshots allowed by the system s license e There is no longer a relationship between the volumes or their snapshots in the two vdisks To remove replication from a volume 1 In the Configuration View panel right click a local primary volume and select Provisioning gt Remove Replication Set 2 In the main panel click Remove Replication Set A message indicates whether the task succeeded or failed If it succeeded the following changes occur in the Configuration View panel e Under the primary vdisk e The primary volume s designation is changed from Primary Volume to Volume 114 Using AssuredRemote to replicate volumes e The secondary volume is removed e Any replication images are replaced b
13. Optional Password for the specified user 3 Click Create Remote System If the task succeeds the new remote system appears in the Configuration View panel Deleting remote systems You can delete the management objects for remote systems After establishing replication to a remote system if you choose to delete the remote system you can safely do so without affecting replications However because the remote system s name and IP address will no longer appear in user interfaces record this information before deleting the remote system so that you can access it at a later time such as to delete old replication images or for disaster recovery To delete remote systems 1 In the Configuration View panel either e Right click the local system and select Configuration gt Remote System gt Delete Remote System e Right click a remote system and select Configuration gt Delete Remote System 2 In the main panel select the remote systems to remove To select or clear all items toggle the checkbox in the heading row 3 Click Delete Remote System s A confirmation dialog appears 4 Click Delete to continue otherwise click Cancel If you clicked Delete a processing dialog appears If the task succeeds the System Overview panel and a success dialog appear 5 Click OK As processing completes the deleted items are removed from the Configuration View panel Configuring a vdisk Managing dedicated spares You can assign a maxim
14. Vdisk level errors reported include hard errors media errors and bad block replacements BBRs Disk level errors reported include metadata read errors SMART events during scrub bad blocks during scrub and new disk defects during scrub For RAID 3 5 6 and 50 the utility checks all parity blocks to find data parity mismatches For RAID 1 and 10 the utility compares the primary and secondary disks to find data inconsistencies For NRAID and RAID O the utility checks for media errors You can use a vdisk while it is being scrubbed Background vdisk scrub runs at background utility priority which reduces to no activity if CPU usage is above a certain percentage or if O is occurring on the vdisk being scrubbed A vdisk scrub may be in process on multiple vdisks at once A new vdisk will first be scrubbed 20 minutes after creation After a vdisk is scrubbed scrub will start again after the interval specified by the Vdisk Scrub Interval option Configuring the system When a scrub is complete an event with code 207 is logged that specifies whether errors were found For details see the Event Descriptions Reference Guide Enabling background vdisk scrub is recommended for both SATA and SAS disks X TIP If you choose to disable background vdisk scrub you can still scrub a selected vdisk by using Media Scrub Vdisk page 82 To configure background scrub for vdisks 1 3 In the Configuration View panel right click the
15. X TIP When an explicit mapping is deleted the volume s default mapping takes effect Therefore it is recommended to use the same LUN for explicit mappings as for the default mapping Volume mapping settings are stored in disk metadata If enough of the disks used by a volume are moved into a different enclosure the volume s vdisk can be reconstructed and the mapping data is preserved 3000 Series storage system models use Unified LUN Presentation ULP which can expose all LUNs through all host ports on both controllers The interconnect information is managed in the controller firmware ULP appears to the host as an active active storage system where the host can choose any available path to access a LUN regardless of vdisk ownership When ULP is in use the system s operating redundancy mode is shown as Active Active ULP ULP uses the T10 Technical Committee of INCITS Asymmetric Logical Unit Access ALUA extensions in SPC 3 to negotiate paths with aware host systems Unaware host systems see all paths as being equal Related topics e Using the Provisioning Wizard on page 55 Changing a volume s default mapping page 62 or explicit mappings page 63 e Changing host mappings on page 71 e Viewing information about a volume page 92 snapshot page 94 host page 97 or all hosts page 97 About volume cache options You can set options that optimize reads and writes performed for each volume Using write back or wri
16. controller module CAPI is always enabled Challenge Handshake Authentication Protocol The amount of contiguous data that is written to a vdisk member before moving to the next member of the vdisk A disk that has enough capacity to replace a failed disk and is the same type SAS or SATA A disk that is reserved for use by a specific vdisk to replace a failed disk See compatible disk Host access settings that are configured when a volume is created and that apply to all hosts that are not explicitly mapped to that volume using different settings See also explicit mapping and masking A power saving feature that monitors disk activity in the storage system and spins down inactive SAS and SATA disks based on user selectable policies A disk that is connected to both controllers so its data path is fault tolerant An available compatible disk that is automatically assigned if the dynamic spares option is enabled to replace a failed disk in a redundant vdisk See compatible disk Expander Controller The processor located in the SAS expander in each controller module and expansion module that controls the SAS expander and provides SES functionality See also EMP Enclosure management processor An EC subsystem that provides SES data such as temperature power supply and fan status and the presence or absence of disks Access settings for a host to a volume that override the volume s default mapping See also default ma
17. itNumports Number of host ports in the connectivity unit Number of host ports itStatus Overall state of the connectivity unit Overall status of the connectivity unit online 2 or unknown 1 as appropriate ok 3 warning 4 failed 5 or unknown 1 as appropriate itProduct Connectivity unit vendor s product model name Model string Serial number for this connectivity unit Serial number string itUpTime Number of centiseconds since the last unit initialization O at startup itUrl Same as systemURL Same as systemURL itDomainld Not used set to all 1s as specified by the FA MIB2 2 Spec OxFFFF itProxyMaster Stand alone unit returns yes for this object yes 3 since this is a stand alone unit itPrincipal Whether this connectivity unit is the principal unit within the group of fabric elements If this value is not applicable returns unknown unknown 1 itNumSensors Number of sensors in the connUnitSensorTable 33 connUnitStatusChangeTime Same as statusChangeTime Same as statusChangeTime connUnitConfiguration ChangeTime itNumRevs Same as configurationChangeTime Number of revisions in the connUnitRevsTable Same as configurationChangeTime 16 itNumZones Not supported 0 itModuleld Not supported 16 bytes of Os itName Settable Display string containing a name for this conne
18. network port properties When you select a network port a table shows Health OK The port is operating normally Degraded The port s operation is degraded Fault The port has failed N A Health is not available e Health Reason e MAC Address e Addressing Mode e IP Address Gateway Subnet Mask Controller module host port properties When you select a host port a table shows e Health OK The port is operating normally Degraded The port s operation is degraded Fault The port has failed N A Health is not available e Health Reason e Status e Port ID e Media Type e Target ID e Configured Speed e Actual Speed Controller module expansion port properties When you select an expansion Out port a table shows e Health OK The port is operating normally Degraded The port s operation is degraded Fault The port has failed N A Health is not available e Health Reason Status Name AssuredSAN 3000 Series RAlDar User Guide 101 Controller module CompactFlash properties When you select a CompactFlash card a table shows Health OK The card is operating normally A EJ Fault The card has failed N A Health is not available Health Reason Status Cache Flush Drive enclosure O module properties When you select an I O module a table shows Health OK The I O module is operating normally Degraded The I O modul
19. nitPortStatObject Not supported O No statistics available connUnitEventTable Includes the following objects as specified by the FA MIB2 2 Spec connuU connuU nitEventUnitld nitEvent Index connUnit Id of the connectivity unit that contains this port Index into the connectivity unit s event buffer incremented for each event AssuredSAN 3000 Series RAlDar User Guide Same as connUnitId Starts at 1 every time there is a table reset or the unit s event table reaches its maximum index value 127 Table 11 connUnit EventId FA MIB 2 2 objects descriptions and values continued Description Internal event ID incremented for each event ranging between O and connUnitMaxEvents Starts at O every time there is a table reset or connUnitMaxEvents is reached connUnitREventTime Real time when the event occurred in the following format DDMMYYYY HHMMSS O for logged events that occurred prior to or at startup itSEventTime sysuptime timestamp when the event occurred O at startup tEventSeverity Event severity level error 5 warning 6 or info 8 tEventType Type of this event As defined in CAPI tEventObject Not used 0 tEventDescr Text description of this event Formatted event including relevant parameters or values tLinkTable Not supported N A itPortStatFabric Not supported N A itPortStatSCS
20. 3 5 6 10 50 when one or more of its disks fails and a compatible spare disk is available A compatible disk has enough capacity to replace the failed disk and is the same type SAS or SATA There are three types of spares Dedicated spare Reserved for use by a specific vdisk to replace a failed disk Most secure way to provide spares for vdisks but expensive to reserve a spare for each vdisk e Global spare Reserved for use by any redundant vdisk to replace a failed disk e Dynamic spare An available compatible disk that is automatically assigned to replace a failed disk in a redundant vdisk When a disk fails the system looks for a dedicated spare first If it does not find a dedicated spare it looks for a global spare If it does not find a compatible global spare and the dynamic spares option is enabled it takes any available compatible disk If no compatible disk is available reconstruction cannot start A best practice is to designate spares for use if disks fail Dedicating spares to vdisks is the most secure method but it is also expensive to reserve spares for each vdisk Alternatively you can enable dynamic spares or assign global spares Related topics e Configuring dynamic spares on page 45 e Managing dedicated spares on page 50 e Managing global spares on page 58 e Using the Provisioning Wizard on page 55 e Creating a vdisk on page 57 AssuredSAN 3000 Series RAlDar User Guide 19 e Viewing information about a vd
21. Associators AssociatorNames References ReferenceNames GetQualifier SetQualifier DeleteQualifier EnumerateQualifiers GetProperty and SetProperty 146 Using SMI S Is the product CTP certified We are working towards being CTP 1 3 certified and may pass the CTP 1 3 tests at the time TS230 is released Troubleshooting Problem Can t connect to the embedded SMI S Array provider Cause SMI S protocol is not enabled Solution Log in to the array as manage and type set protocol smis enabled Problem HTTP Error Invalid username password or 401 Unauthorized Cause User preferences are configurable for each user on the storage array Solution Check that the user has access to the smis interface and set the user preferences to support the smis interface if necessary See SMI S configuration on page 144 for instructions on how to add users Also verify the supplied credentials Problem Unable to connect via HTTP on port 5988 Cause SMI S Array provider only supports HTTPS Secure Socket Layer communication on port 5989 Solution Contact technical support for instructions Problem Want to connect securely as user name my_xxxx Cause Need to add user Solution Log in to the array as manage Type create user level manage my_xxxuser and then type set user my_xxxuser interfaces wbi cli smis Problem Can t discover via SLP Cause SLP multicast has limited range known as hops Solution Move the client closer to the array or set
22. Configuration View panel Removing hosts To remove hosts 1 2 6 Verify that the hosts you want to remove are not accessing volumes In the Configuration View panel either e Right click the system or Hosts and then select Provisioning gt Remove Hosts e Right click a host and select Provisioning gt Remove Host In the main panel select the hosts to remove To select or clear all items toggle the checkbox in the heading row Click Remove Host s A confirmation dialog appears Click Remove to continue otherwise click Cancel If you clicked Remove a processing dialog appears If the task succeeds an overview panel and a success dialog appear Click OK As processing completes the deleted items are removed from the Configuration View panel Changing a host s name 70 To change a host s name 1 2 In the Configuration View panel right click a host and select Provisioning gt Rename Host Enter a new name that helps you easily identify the host for example FileServer_1 A host name is case sensitive cannot already exist in the system cannot include a comma double quote or backslash and can have a maximum of 15 bytes Click Modify Name Provisioning the system Changing host mappings For each volume that is mapped to the selected host you can create modify and delete explicit mappings To change a volume s default mapping see Changing a volume s default mapping on page 62
23. MC loader Controller A Firmware revision for MC loader Controller B Firmware Revision for Unified CPLD Controller A Firmware Revision for Unified CPLD Controller B Firmware Revision for Expander Controller A Firmware Revision for Expander Controller B Hardware Revision for Controller A Hardware Revision for Controller B AssuredSAN 3000 Series RAlDar User Guide 129 External details for connUnitSensorlable Table 13 connUnitSensorTable index name type and characteristic values connUnitSensorlIndex connUnitSensorName connUnitSensorType connUnitSensor Characteristic 1 CPU Temperature Controller A board 8 temperature 3 2 CPU Temperature Controller B board 8 temperature 3 3 FPGA Temperature Controller A board 8 temperature 3 4 FPGA Temperature Controller B board 8 temperature 3 5 Onboard Temperature 1 Controller A board 8 temperature 3 6 Onboard Temperature 1 Controller B board 8 temperature 3 7 Onboard Temperature 2 Controller A board 8 temperature 3 8 Onboard Temperature 2 Controller B board 8 temperature 3 9 Capacitor Temperature Controller A board 8 temperature 3 10 Capacitor Temperature Controller B board 8 temperature 3 1 CM Temperature Controller A enclosure 7 temperature 3 12 CM Temperature Controller B enclosure 7 temper
24. RAID 50 the sub vdisk that the disk is in for other RAID levels the disk s RAID level or SPARE Disk Type SAS dual port SAS S single port SATA dual port or SATA S single port Disks Quantity of disks in the vdisk or sub vdisk Size Total capacity of the disks in the vdisk or sub vdisk The enclosure view table has two tabs The Tabular tab shows Health Shows whether the disk is healthy or has a problem OK The disk is operating normally Fault The disk has failed Degraded The disk s operation is degraded If you find no related event in the event log this may indicate a hardware problem N A Health is not available Name System defined disk name using the format Disk enclosure number disk slo number AssuredSAN 3000 Series RAlDar User Guide 91 e Type SAS dual port SAS S single port SATA dual port or SATA S single port e State Shows how the disk is used e If the disk is in a vdisk its RAID level AVAIL Available e FAILED The disk is unusable and must be replaced Reasons for this status include excessive media errors SMART error disk hardware failure unsupported disk e SPARE Spare assigned to a vdisk e GLOBAL SP Global spare e LEFTOVR Leftover Also shows any job running on the disk e DRSC The disk is being scrubbed e EXPD The vdisk is being expanded e INIT The vdisk is being initialized e RCON The vdisk is being reconstructed e VRFY The vdisk is being verified
25. User Guide 147 Alert Indications The implementation of alert indications allow a subscribing CIM client to receive events such as FC cable connects Power Supply events Fan events Temperature Sensor events and Disk Drive events Full provisioning We currently do not have a create vdisk implementation in the provider Full provisioning will be modeled in the provider by the Block Services and Masking amp Mapping subprofiles Replication support We currently do not have a replication implementation in the provider Replication will be modeled in the provider by the Copy Services and Replication Services subprofiles in a SMI S 1 5 provider What is the codebase for the CIM clients CTP uses the WBEMSolutions WSI J Server v1 2 1 Java client HP SIM uses the Pegasus Java Client Microsoft System Center uses a Microsoft WMI client CIM Browser uses the Sblim CIM Client v2 x Java client which supports JSR 48 EMC CommandCenter and cimcli uses the Pegasus C client 148 Using SMI S Glossary CAPI CHAP chunk size compatible disk dedicated spare default mapping drive spin down DSD dual port disk dynamic spare EC EMP explicit mapping FC global spare host image ID IQN iSCSI iSNS jumbo frame leftover loop masking master volume Configuration Application Programming Interface The proprietary protocol used for communication between the Storage Controller and the Management Controller in a
26. View panel right click a redundant vdisk and select Tools gt Verify Vdisk 2 Click Abort Verify Utility A message confirms that verification has been aborted 3 Click OK Scrubbing a vdisk 82 The system level Vdisk Scrub option see Configuring background scrub for vdisks on page 48 automatically checks all vdisks for disk defects If this option is disabled you can still perform a scrub on a selected vdisk The scrub utility analyzes a vdisk to detect report and store information about disk defects Vdisk level errors reported include hard errors media errors and bad block replacements BBRs Disk level errors reported include metadata read errors SMART events during scrub bad blocks during scrub and new disk defects during scrub For RAID 3 5 6 and 50 the utility checks all parity blocks to find data parity mismatches For RAID 1 and 10 the utility compares the primary and secondary disks to find data inconsistencies For NRAID and RAID O the utility checks for media errors This utility does not fix defects You can use a vdisk while it is being scrubbed A scrub can last over an hour depending on the size of the vdisk the utility priority and the amount of I O activity However a foreground scrub performed by Media Scrub Vdisk is typically faster than a background scrub performed by Vdisk Scrub When a scrub is complete an event with code 207 is logged that specifies whether errors were found For details
27. all zeroes e Alternate SNS Address Specifies the IP address of an alternate SNS server which can be on a different subnet The default address is all zeroes 4 Click Apply AssuredSAN 3000 Series RAlDar User Guide 43 Changing network interface settings You can configure addressing parameters for each controller s network port You can set static IP values or use DHCP In DHCP mode network port IP address subnet mask and gateway values are obtained from a DHCP server if one is available If a DHCP server is unavailable current addressing is unchanged You must have some means of determining what addresses have been assigned such as the list of bindings on the DHCP server Each controller has the following factory default IP settings DHCP disabled e Controller A IP address 10 0 0 2 e Controller B IP address 10 0 0 3 e IP subnet mask 255 255 255 0 e Gateway IP address 10 0 0 1 When DHCP is enabled the following initial values are set and remain set until the system is able to contact a DHCP server for new addresses Controller IP addresses 169 254 x x where the value of x x is the lowest 16 bits of the controller serial number e IP subnet mask 255 255 0 0 e Gateway IP address 0 0 0 0 169 254 x x addresses including gateway 169 254 0 1 are on a private subnet that is reserved for unconfigured systems and the addresses are not routable This prevents the DHCP server from reassigning the addresse
28. and select Provisioning gt Reattach Replication Volume 2 In the main panel click Reattach Replication Volume A message indicates whether the task succeeded or failed e If the task succeeds the secondary volume s status changes to Establishing proxy while it is establishing the connection to the remote primary system in preparation for replication then the status changes to Online The replication set is ready to resume replication operations e If the reattach operation fails and says it is unable to get the primary volume s link type the vdisk that contains the secondary volume may not have completed its startup activities Wait approximately one minute for these activities to complete then retry the operation If this message continues to occur check the event log to better understand the condition and for an indication of how to correct it Exporting a replication image to a snapshot If the system is licensed to use remote replication you can export a replication image to a new standard snapshot For example you could export a replication image from a secondary volume for use on the remote system The standard snapshot will reside in the same snap pool take a snapshot license and be independent of the primary replication image which can continue to be used as a sync point The standard snapshot can be used like any other standard snapshot and changes to it will not affect the replication image The standard snapsh
29. associate with the new volume The default size is either 20 of the volume size or the minimum snap pool size whichever is larger e Attach Pool Select an existing snap pool to associate with the new volume Replication Prepare If the system is licensed to use remote replication and you want to use this volume as a secondary volume select this option Selecting this option disables the Map option AssuredSAN 3000 Series RAlDar User Guide 59 e Map Select this option to change the default mapping for the volume e Access Select the access level that hosts will have to the volume LUN If the access level is set to read write or read only set a LUN for the volume e In the enclosure view or list select controller host ports through which attached hosts can access the volume 3 Click Apply If the task succeeds the new volume appears in the Configuration View panel If you specified an option to create a snap pool the new snap pool also appears in that panel Deleting volumes You can use the Delete Volumes panel to delete standard and master volumes A CAUTION Deleting a volume removes its mappings and schedules and deletes its data To delete volumes 1 Verify that hosts are not accessing the volumes that you want to delete 2 In the Configuration View panel either e Right click the system or Vdisks or a vdisk and then select Provisioning gt Delete Volumes e Right click a volume and select Provisioning gt Del
30. broadcast mode 3 Click Apply Changing host interface settings 42 To enable the system to communicate with hosts or with remote systems you must configure the system s host interface options There are options for FC and iSCSI ports but not for SAS ports To change FC host interface settings 1 In the Configuration View panel right click the system and select Configuration gt System Settings gt Host Interfaces 2 Set the speed to the proper value to communicate with the host Speed can be set to auto the default which auto negotiates the proper link speed with the host or to 8Gb Gbit per second 4Gb or 2Gb Because a speed mismatch prevents communication between the port and host set a speed only if you need to force the port to use a known speed for testing or you need to specify a mutually supported speed for more than two FC devices connected in an arbitrated loop 3 Set the connection mode to loop point to point the default for 3XX3 models or auto the default for 3XX0 models Loop protocol can be used in a physical loop or in a direct physical connection between two devices Point to point protocol can only be used on a direct physical connection between exactly two devices Auto sets the mode based on the detected connection type 4 Set the loop ID for each controller to request when the controller arbitrates during a LIP A controller can use soft or hard target addressing Soft target addressing which
31. cancelled If the FTP prompt does not return quit the FTP session and log in again Verify that you specified the correct firmware file and repeat the update If this problem persists contact technical support When firmware update on the local controller is complete the message Operation Complete is printed the FTP session returns to the tp gt prompt and the FTP session to the local MC is closed If PFU is enabled allow an additional 10 20 minutes for the partner controller to be updated 9 Quit the FTP session 10 Clear your web browser s cache then sign in to RAIDar If PFU is running on the controller you sign in to a dialog box shows PFU progress and prevents you from performing other tasks until PFU is complete EY NOTE After firmware update has completed on both controllers if the system health is Degraded and the health reason indicates that the firmware version is incorrect verify that you specified the correct firmware file and repeat the update If this problem persists contact technical support Updating expansion module firmware A drive enclosure can contain one or two expansion modules Each expansion module contains an enclosure management processor EMP All modules of the same model should run the same firmware version Expansion module firmware is updated in either of two ways When you update controller module firmware all expansion modules are automatically updated to a compatible firmware versi
32. controller shutdown if a temperature is detected that exceeds system threshold limits Disabled by default 3 In the Auto Write Through Cache Behaviors section either select enable or clear disable the options e Revert when Trigger Condition Clears Changes back to write back caching after the trigger condition is cleared Enabled by default Notify Other Controller Notifies the partner controller that a trigger condition occurred Enable this option to have the partner also change to write through mode for better data protection Disable this option to allow the partner continue using its current caching mode for better performance Disabled by default 4 Click Apply Configuring partner firmware update In a dual controller system in which partner firmware update is enabled when you update firmware on one controller the system automatically updates the partner controller Disable partner firmware update only if requested by a service technician To change the partner firmware update setting 1 In the Configuration View panel right click the system and select Configuration gt Advanced Settings gt Firmware 2 Either select enable or clear disable the Partner Firmware Update option 3 Click Apply Configuring system utilities Configuring background scrub for vdisks 48 You can enable or disable whether the system continuously analyzes disks in vdisks to detect report and store information about disk defects
33. downloading logs and installing a license Simple Network Management Protocol SNMP Used for remote monitoring of the system through your network Service Debug Used for technical support only In band management interfaces operate through the data path and can slightly reduce I O performance The in band option is In band SES Capability Used for in band monitoring of system status based on SCSI Enclosure Services SES data If a service is disabled it continues to run but cannot be accessed To allow specific users to access WEBI CLI or FTP see About user accounts on page 17 To change management interface settings 1 In the Configuration View panel right click the system and select Configuration gt Services gt Management 2 Enable the options that you want to use to manage the storage system and disable the others 3 Click Apply If you disabled any options a confirmation dialog appears 4 Click Yes to continue otherwise click No If you clicked Yes a processing dialog appears When processing is complete a success dialog appears 5 Click OK Configuring the system Configuring email notification To contigure email notification of events 1 2 3 4 In the Configuration View panel right click the system and select Configuration gt Services gt Email Notification In the main panel set the options e Notification Level Select the minimum severity for which the system should
34. ee Oe ee a Pe AA ee ee ee re a 81 Venfying O a tak get AO O 82 Scrubbing a vdisk A O A Paani Be en 82 Removing a vdisk from quarantine n cell A A SAME Aol As ul abhi he 83 Expanding ashap DOOM e A AAA ae AER SENOR A AAI SRNR ANDA 84 Checking links to a remote system pi A A AA AAA AAA 85 Checking links in the local system ato ta a it ee dae bee butane a 85 AssuredSAN 3000 Series RAlDar User Guide 5 5 VENIMOS SIE MUS a a and Oost aoe caret caste ee ante Nae As rs he 87 Viewing information about the systems cs vata don dae che wae ke Sop be bee eS PEK TRAY DRS 87 IVSIEMPrOpendleS R EA E a ia agri a ie Bae 87 Enclosure Propiedad dd as ito a 87 Disk properties pb tds bl dor tor US aoa RR AA A ee weak Belt Lo A 87 o A A E E ae fer ee a a E oi 87 NOS Pro Pee iii AA RET e 87 Snap pool properties A A 87 Snapshot properties A a o e de e od SL 88 Schedule BIO DENIES ve ninsis ib A ARS A AAA E AAA AAA A ALTAS 88 Configuration lis O enim RA 88 Licensed features n n anana a8 A 4 Radek eo Ae lod ataca Be ae aa ak 88 Version properties 56 Cece A eae teeta ee ted gets ee GAs hoe RR aes 88 Viewing the system event log 4 DA er ee RA Gh oe SEO EBD ance ay EY ee 88 Viewing information about all vdisks a ou ty a ate ede a bone eae nest es 89 Viewing information about a vdisk sit ib ye ot Mae GRRE Bede ke Pewee Mw keds 90 WEIS properties er hive Sibi tO lint Sine calle do ine ee aa ahh Gt a eee ii E 90 Disk propensa Lobe et Ach
35. enable or clear disable the Enable Drive Spin Down option Set the Drive Spin Down Delay minutes which is the period of inactivity after which the vdisk s disks and dedicated spares automatically spin down from 1 360 minutes If DSD is enabled and no delay value is set the default is 15 minutes A value of O disables DSD 3 Click Apply When processing is complete a success dialog appears 4 Click OK Configuring a volume Changing a volume s name To change a volume s name 1 In the Configuration View panel right click a volume and select Configuration gt Modify Volume Name 2 Enter a new name A volume name is case sensitive cannot already exist in a vdisk cannot include a comma double quote or backslash and can have a maximum of 20 bytes 3 Click Modify Name The new name appears in the Configuration View panel Changing a volume s cache settings A CAUTION e Only disable write back caching if you fully understand how the host operating system application and adapter move data If used incorrectly you might hinder system performance Only change read ahead cache settings if you fully understand how the host operating system application and adapter move data so that you can adjust the settings accordingly To change a volume s cache settings 1 In the Configuration View panel right click a volume and select Configuration gt Modify Volume Cache Settings 2 In the main panel set the read ahea
36. example a vdisk can include a 500 GB disk and a 750 GB disk If you mix disks with different capacities the smallest disk determines the logical capacity of all other disks in the vdisk regardless of RAID level For example if a RAID 0 vdisk contains one 500 GB disk and four 750 GB disks the capacity of the vdisk is equivalent to approximately five 500 GB disks To maximize capacity use disks of similar size For greatest reliability use disks of the same size and rotational speed In a single controller system all vdisks are owned by that controller In a dual controller system when a vdisk is created the system automatically assigns the owner to balance the number of vdisks each controller owns or you can select the owner Typically it doesn t matter which controller owns a vdisk In a dual controller system when a controller fails the partner controller assumes temporary ownership of the failed controller s vdisks and resources If the system uses a fault tolerant cabling configuration both controllers LUNs are accessible through the partner When you create a vdisk you can also create volumes within it A volume is a logical subdivision of a vdisk and can be mapped to controller host ports for access by hosts The storage system presents only volumes not vdisks to hosts To create a vdisk 1 Set the options Vdisk name Optionally change the default name for the vdisk A vdisk name is case sensitive cannot already
37. for a size Based on the precision setting if the selected unit is too large to meaningfully display a size the system uses a smaller unit for that size For example if the unit is set to TB precision is set to 1 and base is set to 10 the size 0 11709 TB is shown as 117 1 GB Temperature Preference Specifies to use either the Celsius scale or the Fahrenheit scale for temperature values Auto Sign Out Select the amount of time that the user s session can be idle before the user is automatically signed out 2 720 minutes The default is 30 minutes Locale The user s preferred display language which overrides the system s default display language Installed language sets include Chinese Simplified Chinese Traditional Dutch English French German Italian Japanese Korean and Spanish 4 Click Modify User User changes take effect when the user next logs in Removing users To remove a user 1 2 3 4 Click Remove to continue otherwise click Cancel If you clicked Remove a processing dialog appears In the Configuration View panel right click the system and select Configuration gt Users gt Remove User In the main panel select the user to remove You cannot remove the manage user Click Remove User A confirmation dialog appears When processing is complete the user is removed from the table Click OK AssuredSAN 3000 Series RAlDar User Guide 41 Configuring system settings Changing the system date and
38. from the Configuration View panel When processing is complete a success dialog appears 5 Click OK AssuredSAN 3000 Series RAlDar User Guide 73 74 Provisioning the system 4 Using system tools Updating firmware You can view the current versions of firmware in controller modules expansion modules in drive enclosures and disks and install new versions 2 TIP To ensure success of an online update select a period of low I O activity This helps the update complete as quickly as possible and avoids disruptions to host and applications due to timeouts Attempting to update a storage system that is processing a large O intensive batch job will likely cause hosts to lose connectivity with the storage system Ef NOTE If a vdisk is quarantined firmware update is not permitted due to the risk of losing unwritten data that remains in cache for the vdisk s volumes Before you can update firmware you must resolve the problem that is causing the vdisk to be quarantined as described in Removing a vdisk from quarantine on page 83 Updating controller module firmware A controller enclosure can contain one or two controller modules In a dual controller system both controllers should run the same firmware version Storage systems in a replication set must run the same firmware version You can update the firmware in each controller module by loading a firmware file obtained from the enclosure vendor If you have a dual con
39. in each disk enclosure rescan also reassigns the enclosure IDs of attached enclosures based on controller A s enclosure cabling order A manual rescan may be needed after system power up to display enclosures in the proper order A manual rescan temporarily pauses all I O processes then resumes normal operation lt can take up to two minutes for the enclosure IDs to be corrected A manual rescan is not needed after inserting or removing disks the controllers automatically detect these changes When disks are inserted they are detected after a short delay which allows the disks to spin up To rescan disk channels 1 Verify that both controllers are operating normally 2 In the Configuration View panel right click the system and select Tools gt Rescan Disk Channels 3 Click Rescan Restoring system defaults If the system is not working properly and you cannot determine why you can restore its default configuration settings You then can reconfigure the settings that are necessary to use the system To restore defaults use the CLl s restore defaults command as described in the CLI reference guide Clearing disk metadata A CAUTION Only use this command when all vdisks are online and leftover disks exist Improper use of this command may result in data loss e Do not use this command when a vdisk is offline and one or more leftover disks exist If you are uncertain whether to use this command contact technical suppor
40. link to ports with the same host interface such as Fibre Channel FC in a remote system Communication between local and remote systems is an essential part of the remote replication feature Related topics e Adding a remote system on page 50 e Deleting remote systems on page 50 e Viewing information about a remote system on page 103 e Checking links to a remote system on page 85 e About the AssuredRemote replication feature on page 105 About the Snapshot feature Snapshot AssuredSnap is a licensed feature that provides data protection by enabling you to create and save snapshots of a volume Each snapshot preserves the source volume s data state at the point in time when the snapshot was created Snapshots can be created manually or by using the task scheduler When the first snapshot is taken of a standard volume the system automatically converts the volume into a master volume and reserves additional space for snapshot data This reserved space called a snap pool stores pointers to the source volume s data Each master volume has its own snap pool The system treats a snapshot like any other volume the snapshot can be mapped to hosts with read only access read write access or no access depending on the snapshot s purpose Any additional unique data written to a snapshot is also stored in the snap pool The following figure shows how the data state of a master volume is preserved in the snap pool by two snapshots tak
41. main panel set the name contact person or group location and other information about the system Each value can include a maximum of 79 bytes using characters except double quote or backslash The name is shown in the browser title bar or tab The name location and contact are included in event notifications All four values are recorded in system debug logs for reference by service personnel Click Apply Configuring advanced settings Changing disk settings Configuring SMART Self Monitoring Analysis and Reporting Technology SMART provides data that enables you to monitor disks and analyze why a disk failed When SMART is enabled the system checks for SMART events one minute after a restart and every five minutes thereafter SMART events are recorded in the event log To change the SMART setting 1 2 3 In the Configuration View panel right click the system and select Configuration gt Advanced Settings gt Disk Set SMART Configuration to either Don t Modify Allows current disks to retain their individual SMART settings and does not change the setting for new disks added to the system Enabled Enables SMART for all current disks after the next rescan and automatically enables SMART for new disks added to the system This option is the default Disabled Disables SMART for all current disks after the next rescan and automatically disables SMART for new disks added to the system Click Apply Con
42. on page 45 DSD affects disk operations as follows Spun down disks are not polled for SMART events e Operations requiring access to disks may be delayed while the disks are spinning back up e Ifa suspend period is configured and it starts while a disk has started spinning down the disk spins up again To schedule DSD for all disks 1 In the Configuration View panel right click the local system and select Configuration gt Advanced Settings gt Disk 2 Set the options Select the Drive Spin Down Suspend Period option Seta time to suspend and a time to resume DSD For each enter hour and minutes values and select either AM PM or 24H 24 hour clock e If you want the schedule to apply only Monday through Friday select the Exclude Weekend Days from Suspend Period option 3 Click Apply When processing is complete a success dialog appears 4 Click OK Configuring the EMP polling rate You can change the interval at which the storage system polls each attached enclosure s EMP for status changes Typically you can use the default setting e Increasing the interval might slightly improve processing efficiency but changes in device status are communicated less frequently For example this increases the amount of time before LEDs are updated to reflect status changes e Decreasing the interval slightly decreases processing efficiency but changes in device status are communicated more frequently For example this d
43. option controls the SCSI sense data returned for volumes that are not accessible because they don t exist or have been hidden through volume mapping this does not apply to volumes of offline vdisks Use the default value unless a service technician asks you to change it to work around a host driver problem To change the missing LUN response 1 In the Configuration View panel right click the system and select Configuration gt Advanced Settings gt Cache 2 Set Missing LUN Response to either FE a e Not Ready Sends a reply that there is a LUN where a gap has been created but that it s not ready Sense data returned is a Sense Key of 2h and an ASC ASCQ of 04 03 This option is the default e Illegal Request Sends a reply that there is a LUN but that the request is illegal Sense data returned is a Sense Key of 5h and an ASC ASCQ of 25 00 3 Click Apply Controlling host access to the system s write back cache setting You can prevent hosts from using SCSI MODE SELECT commands to change the system s write back cache setting Some operating systems disable write cache If host control of write back cache is disabled the host cannot modify the cache setting The default is Disabled This option is useful in some environments where the host disables the system s write back cache resulting in degraded performance To change host access to the write back cache setting 1 In the Configuration View panel rig
44. or backslash and can have a maximum of 20 bytes Continue with step 7 If you want to schedule replication a b c Select the Initiate Replication and Scheduled options Set the options e Replication image prefix Optionally change the default prefix to identify images created by this schedule The prefix is case sensitive cannot include a comma double quote or backslash and can have a maximum of 14 bytes e Replication Mode Specifies whether to replicate a new snapshot of the volume to the remote system or to replicate the last most recent existing snapshot of the volume to the remote system e Replication images to Retain Select the number of replication images to retain When the task runs the retention count is compared with the number of existing replication images e Whether the retention count has been reached or not a new replication image is created e If the retention count has been reached the volume s oldest replication image that was created by this schedule and is neither being replicated nor a current sync point nor a queued snapshot is deleted e If there is more than one queued snapshot only the oldest queued snapshot is retained It is retained to serve as the source for the next scheduled replication to create a replication image from This setting applies to the primary volume only for the secondary volume replication images will accumulate until either the secondary vdisk s space limit
45. port 1 10 11 10 120 e Controller B port O 10 10 10 110 e Controller B port 1 10 11 10 130 Netmask IP subnet mask The default is 255 255 255 0 Gateway Gateway IP address The default is 0 0 0 0 A CAUTION Changing IP settings can cause data hosts to lose access to the storage system 3 Set the common options e Authentication CHAP Enables or disables use of Challenge Handshake Authentication Protocol Disabled by default Jumbo Frames Enables or disables support for jumbo frames A normal frame can contain 1500 bytes whereas a jumbo frame can contain a maximum of 9000 bytes for larger data transfers Disabled by default EY NOTE Use of jumbo frames can succeed only if jumbo frame support is enabled on all network components in the data path e Link Speed e Auto Auto negotiates the proper speed This is the default e 1 Gbit s Forces the speed to 1 Gbit sec overriding a downshift that can occur during auto negotiation with 1 Gbit sec HBAs This setting does not apply to 10 Gbit sec HBAs iSCSI IP Version Specifies whether IP values use Internet Protocol version 4 IPv4 or version 6 IPv format IPv4 uses 32 bit addresses IPv uses 128 bit addresses iSNS Enables or disables registration with a specified Internet Storage Name Service server which provides name to IP address mapping Disabled by default SNS Address Specifies the IP address of an SNS server The default address is
46. profile provides a mechanism to tell the client how to connect and use the embedded provider The Array profile has the following supporting profiles and subprofiles e Array profile e Block Services profile e Physical Package e Health profile e Multiple Computer Systems subprofile e Masking and Mapping subprofile e FC Target Ports subprofile or iSCSI Target Ports or SAS Target Ports e Disk Drive Lite subprofile e Extent Composition subprofile starting in TS210 Storage Enclosure profile e Fan profile e Power Supply profile Sensors profile e Access Points subprofile e Location profile Software Inventory profile Software subprofile e Block Server Performance subprofile starting in TS230 e Copy Services and Replication Services subprofile in a future release e CIM Alert indications are supported e SLP Service Location Protocol v2 is supported e HTTPS using SSL encryption is supported on default port 5989 HTTP is optional on default ht tp port 5988 How do test SMI S Use an SMI certified client for SMI S 1 3 HP has clients such as HP SIM and HP Storage Essentials Other common clients are StoragelM IBM Tivoli EMC CommandCenter and CA Unicenter Common WBEM CLI clients are Pegasus cimc1i and Sblim s wbemc1i Testing also employs a Java Swing GUI called CIM Browser To certify that the array provider is SMI S 1 3 compliant SNIA requires that the providers pass the Conformance Test Program CT
47. same ports If a LUN to be assigned to a volume is already in use that volume and any subsequent volumes are not mapped e In the enclosure view or list select controller host ports through which attached hosts can access the volumes 3 Click Apply If the task succeeds the new volumes appear in the Configuration View panel Creating a volume You can add a volume to a vdisk that has sufficient free space and define default mapping settings To create a volume in a vdisk 1 2 In the Configuration View panel right click a vdisk and select Provisioning gt Create Volume In the main panel set the options Volume name Optionally change the default name A volume name is case sensitive cannot already exist in a vdisk cannot include a comma double quote or backslash and can have a maximum of 20 bytes Size Optionally change the default size which is all free space in the vdisk Enable Snapshots If the system is licensed to use Snapshots and you want to create snapshots of this volume select this option This specifies to create the volume as a master volume instead of as a standard volume and enables the Snap Pool and Replication Prepare options Snap Pool Select either Standard Policy This option creates a snap pool named spvolume name whose size is either 20 of the volume size or the minimum snap pool size whichever is larger e Reserve Size Specify the size of the snap pool to create in the vdisk and
48. send notifications Critical only Error and Critical Warning and Error and Critical Informational all The default is none Disabled which disables email notification SMTP Server address The IP address of the SMTP mail server to use for the email messages If the mail server is not on the local network make sure that the gateway IP address is set in System Settings gt Network Interfaces Sender Name The sender name that is joined with an e symbol to the domain name to form the from address for remote notification This name provides a way to identify the system that is sending the notification The sender name can have a maximum of 31 bytes Because this name is used as part of an email address do not include spaces For example Storage 1 If no sender name is set a default name is created Sender Domain The domain name that is joined with an e symbol to the sender name to form the from address for remote notification The domain name can have a maximum of 31 bytes Because this name is used as part of an email address do not include spaces For example MyDomain com If the domain name is not valid some email servers will not process the mail e Email Address fields Up to four email addresses that the system should send notifications to Email addresses must use the format username domain name Each email address can have a maximum of 79 bytes For example Admin MyDomain com Click Apply Optionally sen
49. soft target address Use this option if you want ports to have specific addresses if your system checks addresses in reverse order lowest address first or if an application requires that specific IDs be assigned to recognize the controller For iSCSI ports you can set these options e IP Address The port IP address Netmask The port netmask address e Gateway The port gateway address e Authentication CHAP Enables or disables use of Challenge Handshake Authentication Protocol Disabled by default e Jumbo Frames Enables or disables support for jumbo frames A normal frame can contain 1500 bytes whereas a jumbo frame can contain a maximum of 9000 bytes for larger data transfers Disabled by default EY NOTE Use of jumbo frames can succeed only if jumbo frame support is enabled on all network components in the data path e Link Speed e Auto Auto negotiates the proper speed This is the default e 1 Gbit s Forces the speed to 1 Gbit sec overriding a downshift that can occur during auto negotiation with 1 Gbit sec HBAs This setting does not apply to 10 Gbit sec HBAs e iSCSI IP Version Specifies whether IP values use Internet Protocol version 4 IPv4 or version 6 IPv6 format IPv4 uses 32 bit addresses IPv uses 128 bit addresses iSNS Enables or disables registration with a specified Internet Storage Name Service server which provides name to IP address mapping Disabled by default e SNS Address Sp
50. sustain I O in the event of controller failure it is recommended to map to at least one host port on each controller After a volume is created you can change its default mapping and create modify or delete explicit mappings An explicit mapping overrides the volume s default mapping for a specific host EY NOTE When mapping a volume to a host using the Linux ext3 file system specify read write access otherwise the file system will be unable to mount present map the volume and will report an error such as unknown partition table To specify the default mapping 1 Select Map 2 Set the base LUN for the volumes If this LUN is available it will be assigned to the first volume and the next available LUNs in sequence will be assigned to any remaining volumes 3 In the enclosure view or list select controller host ports through which attached hosts can access each volume 4 Select the access level that hosts will have to each volume read write read only or no access masked 5 Click Next to continue Step 6 Confirming vdisk settings Confirm that the values listed in the wizard panel are correct e If they are not correct click Previous to return to previous steps and make necessary changes e If they are correct click Finish to apply the setting changes and finish the wizard Creating a vdisk To create a vdisk 1 In the Configuration View panel right click the system or Vdisks and then select Provisionin
51. te lag 141 DIVES OVEIVIEW od see Sep DS RA T E a eh hs Ge a toe do ibi 14 Key COMPONENTS autoras ros aa A de soy ates oe eS 141 WBEM a o a 141 A O RR 141 O O ei kee ees 141 A Wage dee ae Rch T A Rad Rhea RO Ry Rahs uaa an WMA O Tu dls 141 SIMES Implementado 142 About the 3000 Series SMES provider e uta PD A Oe a Le MCR 142 AssuredSAN 3000 Series RAlDar User Guide 7 Ses a e Win aa Meda sn Ae ein rte Aa ld 143 CIMA ler A O BOGE E O Asn E Ee Atlee 40 144 SMES CONE UOMO E Sgn a nde ae nition ena a NO Deane a neck Negara a wan Real 144 Frequently asked questions 4 iene ii c4 A wth et RG Mee ARE SE REA AMY SE RR 145 What is an embedded SMI S array provider 2 1 teen eens 145 How Aoi Test SMS PoR Er dade PAS Sted lhe AACE Ue AEN He ARRAS aa NOR RAS RA 145 What storage arrays are supported ora AA a GALS 145 What s new in this release ce bil dd ia dd id a 146 What is thearchitecture cdo dt A ene at Seed e en e AAA ee aot eee A 146 What CIM operations are supported e 4 ORG EEG Ae 146 ls the product CTP certified od O a ROO a Anca de Wee aT 147 Tro bleshooting EA vin tase aie Be fades amp Bo deen amp Bom ere II Meh 3 hee AN 147 Definitions cual Mahe A hae MA thE eh A eA A 147 Block Server Performance subprofile o n nanna poy site 4ok eh a Si Gre AA ee Nahin wa eae 147 LUN Masking and Mapping Operations ces cis A Ve A Aa ee ee es 147 Alert Indications it onsale A Aah AS ie Bono ah bok Lee Ge GAP A Mace Gee
52. the Warning threshold e No Change Take no action EY NOTE The policies Delete Oldest Snapshot and Delete Snapshots do not apply business logic to the delete decision and may delete snapshots that are mounted presented mapped or modified You may set retention priorities for a snap pool as a way of suggesting that some snapshots are more important than others but these priorities do not ensure any specific snapshot is protected For details about setting snap pool thresholds and policies see the CLI reference guide 96 Viewing system status Volume properties When you select the Client Volumes component a table shows each volume s name serial number size vdisk name and vdisk serial number Snapshot properties When you select the Resident Snapshots component a table shows each volume s name serial number and amounts of snap data unique data and shared data Snap data is the total amount of data associated with the specific snapshot data copied from a source volume to a snapshot and data written directly to a snapshot Unique data is the amount of data that has been written to the snapshot since the last snapshot was taken If the snapshot has not been written or is deleted this value is zero bytes Shared data is the amount of data that is potentially shared with other snapshots and the associated amount of space that will be freed if the snapshot is deleted This represents the amount of data written direct
53. the primary volume s current data this snapshot is then used to copy new delta data from the primary volume to the secondary volume then in the secondary system a matching snapshot is created for the updated secondary volume This pair of matching snapshots establishes a replication sync point and these sync points are used to continue the replication process Following next is a step by step example of the remote replication process The following figure illustrates three replication sets in use by two hosts The host in New York is mapped to and updates the Finance volume This volume is replicated to the host in Munich AssuredSAN 3000 Series RAIDar User Guide 105 e The host in Munich is mapped to and updates the Sales and Engineering volumes The Sales volume is replicated from System 2 to System 3 in the Munich DATA center The Engineering volume is replicated from System 3 in Munich to System 1 in New York New York host Munich host System 1 Figure 4 Intersite and intrasite replication sets Remote replication uses snapshot functionality to track the data to be replicated and to determine the differences in data updated on the master volume minimizing the amount of data to be transferred Snapshots created by the remote replication process are a special form called replication snapshots which do not count against snapshot license limits In order to perform a replication a snapshot of the primary volume is taken creat
54. the primary volume to the secondary volume Once the initial replication has completed all future replications for that replication set will be delta replications so long as sync points are maintained Action 5 is a delta replication Queued replications New replications can be initiated while other replication snapshots are in the process of being replicated This enables you to take snapshots at specific intervals while other replications are ongoing Note that a replication that is initiated while another to the same secondary volume is ongoing will be queued and will not begin to transfer data until the prior one completes In action 3 Snap 2 is queued while Snap 1 is being replicated in action 7 Snap 3 is queued while Snap 2 is being replicated An in progress replication can be suspended either manually by a user or automatically if a network error occurs If you want the replication to continue you must manually resume it or if you want to cancel the replication you can abort it E IMPORTANT For a replication to begin the controller that owns the secondary volume must have a link to the controller that owns the primary volume This link must be of the type specified by the link type parameter supplied during replication set creation or modification If all links to the controller that owns the primary volume fail but links remain between its partner controller and the controller that owns the secondary volume replications cur
55. the time of the request so if there is data in the operating system cache that will not be copied over Unmounting unpresenting unmapping the volume forces the cache flush from the operating system After the volume copy has started it is safe to remount re present remap the volume and or resume I O To ensure the integrity of a copy of a snapshot with modified data unmount unpresent unmap the snapshot or perform a system cache flush The snapshot will not be available for read or write access until the volume copy is complete If modified write data is not to be included in the copy then you may safely leave the snapshot mounted presented During a volume copy using snapshot modified data the system takes the snapshot offline as shown by the Snapshot Overview panel The volume copy s progress is shown in the Volume Overview panel You can create a volume copy now or schedule the copy task To create a volume copy now 1 In the Configuration View panel right click a volume and select Provisioning gt Create Volume Copy 2 In the main panel select Now 3 Set the options e New Volume Name Optionally change the default name for the destination volume A volume name is case sensitive cannot already exist in a vdisk cannot include a comma double quote or backslash and can have a maximum of 20 bytes e Residing On Vdisk Optionally change the destination vdisk With Modified Data If the source volume is a snapshot select this
56. time You can enter values manually for the system date and time or you can set the system to use NTP as explained in About the system date and time on page 30 Date and time values use Coordinated Universal Time UTC To use manual date and time settings 1 In the Configuration View panel right click the system and select Configuration gt System Settings gt Date Time The date and time options appear 2 Set the options e Time Enter the time in the format hh mm ss where hh is the hour 0 23 mm is the minutes 0 59 and ss is the seconds 0 59 e Month Day e Year Enter the year using four digits Network Time Protocol NTP Select Disabled 3 Click Apply To obtain the date and time from an NTP server 1 In the Configuration View panel right click the system and select Configuration gt System Settings gt Date Time The date and time options appear 2 Set the options Network Time Protocol NTP Select Enabled NTP Time Zone Offset Optional The system s time zone as an offset in hours and optionally minutes from UTC For example the Pacific Time Zone offset is 8 during Pacific Standard Time or 7 during Pacific Daylight Time the offset for Bangalore India is 5 30 e NTP Server Address Optional If the system should retrieve time values from a specific NTP server enter the address of an NTP server If no IP server address is set the system listens for time messages sent by an NTP server in
57. to volumes when the volumes are not in use Before changing a volume s LUN be sure to unmount unpresent unmap the volume EY NOTE You cannot map the secondary volume of a replication set 60 Provisioning the system NOTE When mapping a volume to a host using the Linux ext3 file system specify read write access otherwise the file system will be unable to mount present map the volume and will report an error such as unknown partition table To change default mapping for multiple volumes 1 In the Configuration View panel right click Vdisks or a vdisk and then select Provisioning gt Map Volume Defaults 2 In the main panel select the volumes to change To select up to 100 items or clear all selections toggle the checkbox in the heading row 3 Select Map 4 Either e Map the volumes to all hosts by setting a starting LUN selecting ports and setting access to read only or read write Mask the volumes from all hosts by setting a starting LUN selecting ports and setting access to no access Setting the default mapping to no access will result in the LUN mapping being removed 5 Click Apply A message specifies whether the change succeeded or failed 6 Click OK Explicitly mapping multiple volumes For all volumes in all vdisks or a selected vdisk you can change access to those volumes by a specific host When multiple volumes are selected LUN values are sequentially assigned starting with a LUN valu
58. users can be signed in to each controller simultaneously For each active RAIDar session an identifier is stored in the browser Depending on how your browser treats this session identifier you might be able to run multiple independent sessions simultaneously Each instance of Internet Explorer can run a separate RAlDar session however all instances of Firefox share the same session End a RAIDar session by clicking the Sign Out link near the top of the RAIDar window Do not simply close the browser window Tips for using the main window The Configuration View panel displays logical and physical components of the storage system To perform a task select the component fo act on and then either e Right click to display a context menu and select the task to perform This is the method that help topics describe e Click a task category in the main panel and select the task to perform The System Status panel shows how many events of each severity have occurred in the system To view event details click a severity icon For more information see Viewing the system event log on page 88 Many tables can be sorted by a specific column To do so click the column heading to sort low to high click again to sort high to low In tables that allow a task to be performed on multiple items you can select up to 100 items or clear all selections by toggling the checkbox in the table s heading row Do not use the browser s Back Forward Reload or Ref
59. vdisk is online and does not have fault tolerant attributes Disk Type SAS dual port SAS S single port SATA dual port or SATA S single port Preferred Owner Controller that owns the vdisk and its volumes during normal operation Current Owner Either the preferred owner during normal operation or the partner controller when the preferred owner is offline Disks Quantity of disks in the vdisk Spares Quantity of dedicated spares in the vdisk Viewing information about a vdisk In the Configuration View panel right click a vdisk and select View gt Overview The Vdisks Overview table shows The overall health capacity and space usage of the vdisk The overall health quantity capacity and space usage of disks in the vdisk The quantity capacity and space usage of volumes in the vdisk The quantity capacity and space usage of snap pools in the vdisk For descriptions of storage space color codes see About storage space color codes on page 31 Select a component to see more information about it Vdisk properties When you select the Vdisk component the Properties for Vdisk table shows Health OK The vdisk is online with all disks working A Degraded The vdisk is being reconstructed as shown by its Current Job property or a RAID 6 vdisk has degraded performance due to one missing disk but remains fault tolerant You can use a degraded RAID 6 vdisk but resolve the problem as soon as possible Fault T
60. will be temporarily inaccessible to hosts IF1 O is not stopped mapped hosts will report I O errors Volume access is restored after the update completes In the Configuration View panel right click the system and select Tools gt Update Firmware The table titled Current Versions Revisions of All Disk Drives shows the currently installed versions Select the disks to update Click Install Disk Firmware File A CAUTION Do not power cycle enclosures or restart a controller during the firmware update If the update is interrupted or there is a power failure the disk might become inoperative If this occurs contact technical support It typically takes several minutes for the firmware to load Wait for a message that the update has completed If the updated disks must be power cycled a Shut down both controllers see Restarting or shutting down controllers on page 80 b Power cycle all enclosures as described in your product s setup guide EY NOTE If you loaded firmware to a Seagate 750 Gbyte Barracuda ES SATA drive after spin up it will be busy for about 50 seconds completing its update Then it will be ready for host I O Verify that each disk has the correct firmware revision AssuredSAN 3000 Series RAlDar User Guide 77 Saving logs To help service personnel diagnose a system problem you might be asked to provide system log data Using RAlDar you can save log data to a compressed zip file The file wil
61. 3 4 In the Maps for Host table select the Explicit mapping to change Set the LUN and select the ports and access type Click Apply A message specifies whether the change succeeded or failed Click OK The mapping settings are updated To delete an explicit mapping Db0wuN In the Maps for Host table select the Explicit mapping to delete Clear Map Click Apply A message specifies whether the change succeeded or failed Click OK The mapping returns to the Default mapping AssuredSAN 3000 Series RAlDar User Guide 71 Contiguring CHAP For iSCSI you can use Challenge Handshake Authentication Protocol CHAP to perform authentication between the initiator and target of a login request To perform this identification a database of CHAP entries must exist on each device Each CHAP entry can specify one name secret pair to authenticate the initiator only one way CHAP or two pairs to authenticate both the initiator and the target mutual CHAP For a login request from an iSCSI host to a storage system the host is the initiator and the storage system is the target To enable or disable CHAP for all iSCSI hosts see Changing host interface settings on page 42 To add or modify a CHAP entry 1 In the Configuration View panel right click Hosts or a specific host and then select Provisioning gt Configure CHAP If any CHAP entries exist a table shows them by node name 2 Optionally select an entry whose name you want
62. 90 all vdisks page 89 or the system page 87 e Rolling back a volume on page 68 e Deleting schedules on page 73 About the Volume Copy feature Volume Copy AssuredCopy is a licensed feature that enables you to copy a volume or a snapshot to a new standard volume While a snapshot is a point in time logical copy of a volume the volume copy service creates a complete physical copy of a volume within a storage system It is an exact copy of a source volume as it existed at the time the volume copy operation was initiated consumes the same amount of space as the source volume and is independent from an I O perspective Volume independence is a key distinction of a volume copy versus a snapshot which is a virtual copy and dependent on the source volume Benefits include e Additional data protection An independent copy of a volume versus logical copy through snapshot provides additional data protection against a complete master volume failure If the source master volume fails the volume copy can be used to restore the volume to the point in time the volume copy was taken Non disruptive use of production data With an independent copy of the volume resource contention and the potential performance impact on production volumes is mitigated Data blocks between the source and the copied volumes are independent versus shared with snapshot so that I O is to each set of blocks respectively application O transacti
63. A Host Port 2 Controller B Controller A Host Port 2 Controller B Host Port 1 Configuring SNMP event notification in RAIDar 1 Verify that the storage system s SNMP service is enabled see Changing management interface settings on page 38 2 Configure and enable SNMP traps see Configuring SNMP notification on page 39 SNMP management You can manage storage devices using SNMP with a network management system such as HP OpenView HP System Insight Manager SIM or HP Instant Support Enterprise Edition ISEE See their documentation for information about loading MIBs configuring events and viewing and setting group objects In order to view and set system group objects SNMP must be enabled in the storage system see Changing management interface settings on page 38 Enterprise trap MIB The following pages show the source for the enterprise traps MIB dhtraps mib This MIB defines the content of the SNMP traps that 3000 Series storage systems generate Dot Hill Low Cost Array MIB for SNMP Traps Revision 11692 Copyright 2005 Dot Hill Systems Corp All rights reserved Use is subject to license terms DHTRAPS MIB Last edit date Nov 11th 2005 DEFINITIONS BEGIN IMPORTS enterprises FROM RFC1155 SMI TRAP TYPE FROM RFC 1215 connUnitEventId connUnitEventType connUnitEventDescr FROM FCMGMT MIB Textual conventions for this MIB formerly Box Hill doth
64. A ERENT PAR Ale Cee eae ee 99 Power supply properties it ur Bu dues Bn BAA Blan tua anh Beate Aveda MMM We deat 100 Controller module propensa cuts Scat Aa tts ied awl Se tS da 100 Controller module network port properties 2 0 teens 101 Controller module host port properties 2 0 nanana eee eens 101 Controller module expansion port properties 0 eee nee 101 Controller module CompactFlash properties 2 2 0 ce a 102 Drive enclosure I O module properties 0 6 tect eee eee 102 I O module In port properties cvs oa ais 102 I O module Out port properties 62 4 0 pe Cdic A AR RAR AAA AR A A 102 Viewing information about a remote system nonan nanana aeaee 103 6 Using AssuredRemote to replicate volumes onnaa naaa 105 About the AssuredRemote replication feature 0 cette nee 105 Replication process OVERVIEW tics ort tinh ore RAT RR AR ADA EDL EASE LAR CARA e De 105 et AA Wop qunig oe eeank Weed she Rie quar ge A LEE ee A eda BE Sea 107 Performing initial replication locally or remotely 0 2 0 eect teens 108 Remote replication disaster recovery hens AAA WBA te BIR REA Gd aslo 109 Remote replication licensing a A Sonne ee Sieh GLOW aL LES We ag a ow rae Gees 110 Related topics ia hac te he ate wade ion wad E AS AROS dt indo hae ek 110 6 Contents Using the Replication Setup Wizard EL AAA E A Glew an ewan hla es 110 Step te Staing the Wizard s ssa n a a a E E AAA EA ER 111 Step 2 Selecting the primary vo
65. Click Yes to continue otherwise click No If you clicked Yes a processing dialog appears When processing is complete a success dialog appears 6 Click OK 7 Optionally remount re present remap the snapshot To schedule a reset snapshot task 1 In the Configuration View panel right click a snapshot and select Provisioning gt Reset Snapshot 2 In the main panel select Scheduled 3 Set the options e Start Schedule Specify a date and a time in the future to be the first instance when the scheduled task will run and to be the starting point for any specified recurrence Date must use the format yyyy mm dd e Time must use the format hh mm followed by either AM PM or 24H 24 hour clock For example 13 00 24H is the same as 1 00 PM Provisioning the system e Recurrence Specify the interval at which the task should run Set the interval to at least 2 minutes The default is 1 minute e Time Constraint Specify a time range within which the task should run e Date Constraint Specify days when the task should run Ensure that this constraint includes the Start Schedule date e End Schedule Specify when the task should stop running 4 Click Reset Snapshot If the task succeeded the schedule is saved and can be viewed in the overview panel for the snapshot or system 5 Make a reminder to unmount unpresent unmap the snapshot before the scheduled task runs Creating a volume copy If the system is licensed to use
66. E Modified Data Tuesday When you use the rollback feature you can choose to exclude the modified data which will revert the data on the master volume to the preserved data when the snapshot was taken Si ee Snap Pool 1 MasterVolume 1 ae Snapshot 1 Preserved Data A Monday a DEE B lt lt lt Modified Data Cee Tuesday Or you can choose to include the modified data since the snapshot was taken which will revert the data on the master volume to the current snapshot AA Snap Pool 1 Figure 2 Rolling back a master volume AssuredSAN 3000 Series RAlDar User Guide 25 Snapshot operations are O intensive Every write to a unique location in a master volume after a snapshot is taken will cause an internal read and write operation to occur in order to preserve the snapshot data If you intend to create snapshots of create volume copies of or replicate volumes in a vdisk ensure that the vdisk contains no more than four master volumes snap pools or both For example 2 master volumes and 2 snap pools 3 master volumes and 1 snap pool 4 master volumes and O snap pools Related topics e Installing a license on page 37 e Creating a snapshot page 65 or multiple snapshots page 64 e Changing a snapshot s default mapping page 62 or explicit mappings page 63 e Deleting snapshots on page 65 e Resetting a snapshot on page 66 e Viewing information about a snapshot page 94 a vdisk page
67. FTP service is enabled c Verify that the user you will log in as has permission to use the FTP interface 5 Stop I O to the storage system During the update all volumes will be temporarily inaccessible to hosts If I O is not stopped mapped hosts will report I O errors Volume access is restored after the update completes To update disk firmware 1 Open a Command Prompt Windows or a terminal window UNIX and navigate to the directory containing the firmware file to load 2 Enter ftp controller network address For example ftp 10 1 0 9 3 Log in as an FTP user 4 Either To update all disks of the type that the firmware applies to enter put firmware file disk To update specific disks enter put firmware file disk enclosure ID slot number For example put firmware file disk 1 11 A CAUTION Do not power cycle enclosures or restart a controller during the firmware update If the update is interrupted or there is a power failure the disk might become inoperative If this occurs contact technical support It typically takes several minutes for the firmware to load Wait for a message that the update has succeeded AssuredSAN 3000 Series RAlDar User Guide 139 a 8 EY NOTE If the update fails verify that you specified the correct firmware file and try the update a second time If it fails again contact technical support If you are updating specific disks repeat step 4 for each remaining di
68. Firefox 3 or later or Microsoft Internet Explorer 7 or later To see the help window you must enable pop up windows To optimize the display use a color monitor and set its color quality to the highest setting To navigate beyond the Sign In page with a valid user account Set the browser s local intranet security option to medium or medium low For Internet Explorer 8 adding each controller s network IP address as a trusted site can avoid access issues e Verify that the browser is set to allow cookies at least for the IP addresses of the storage system network ports Signing in To sign in 1 2 3 In the web browser s address field type the IP address of a controller network port and press Enter The RAlDar Sign In page is displayed If the Sign In page does not display verify that you have entered the correct IP address On the Sign In page enter the name and password of a configured user The default user name and password are manage and manage If you are logging in to RAlDar for the first time the Language field displays user setting or English either of which results in English Click Sign In If the system is available the System Overview page is displayed otherwise a message indicates that the system is unavailable AssuredSAN 3000 Series RAlDar User Guide 15 Tips for signing in and signing out Do not include a leading zero in an IP address For example enter 10 1 4 6 not 10 1 4 06 Multiple
69. HAP on page 72 e After the CHAP records are created enable CHAP on the primary system the secondary system or both To enable CHAP see Changing host interface settings on page 42 If both records don t exist or don t use the same secret replication set creation will fail 110 Using AssuredRemote to replicate volumes Step 1 Starting the wizard 1 2 In the Configuration View panel right click the system and select Wizards gt Replication Setup Wizard The wizard panel appears Click Next to continue Step 2 Selecting the primary volume Step 3 Select the volume whose data you want to replicate If the volume has at least one snapshot you can select a snapshot to be the replication source To select the primary volume 1 2 Set the options e Select the vdisk that contains the volume to replicate Only vdisks that contain at least one volume are listed for selection Select the volume to replicate Only volumes that are not already part of a replication set are listed for selection Click Next to continue Selecting the replication mode Select the replication mode which specifies whether the secondary volume is in the local system or a remote system If you want to replicate to a remote system that hasn t already been added to the local system you can add it To replicate within the local system 1 2 3 Select Local Replication Although it is recommended to check host port
70. ITable Not supported N A itPortStatLANTable SNMP TRAPS Not supported The following SNMP traps are supported N A trapMaxClients Maximum number of trap clients trapClientCount Number of trap clients currently enabled 1 if traps enabled O if traps not enabled connUnit EventTrap This trap is generated each time an event occurs that passes the connUnitEventFilter and the trapRegFilter N A RegTable RegIpAddress Includes the following objects per the FA MIB2 2 Spec IP address of a client registered for traps IP address set through Telnet RegPort RegFilter User Datagram Protocol UDP port to send traps to for this host Settable Defines the trap severity filter for this trap host The connUnit will send traps to this host that have a severity level less than or equal to this value 162 Default warning 6 trapRegRowState Enterprise specific fields Specifies the state of the row Includes the following objects READ rowActive 3 if traps are enabled through Telnet otherwise rowlnactive 2 WRITE Not supported cpqSiSysSe rialNum System serial number For example 3CL8Y40991 cpqSiSysProductld System product ID For example 481321 001 cpqSiProductName 128 SNMP reference System product name For example DH3000 Table 11 FA MIB 2 2 objects descriptions and values continued
71. Last Created Name of the last snapshot volume copy or replication image created by the task Last Used Snapshot For a task whose replication mode is last snapshot the name of the last snapshot used for replication Snapshot Name Name of the snapshot to reset Snapshot Serial Snapshot serial number Mode Replication mode new snapshot Replicate a new snapshot of the primary volume last snapshot Replicate the most recent existing snapshot of the primary volume For a TakeSnapshot task the Retained Set table shows the name and serial number of each snapshot that the task has taken and is retaining Viewing information about a snapshot In the Configuration View panel right click a snapshot and select View gt Overview The Snapshot Overview table shows The capacity and space usage of the snapshot The quantity of mappings for the snapshot The quantity of task schedules for the snapshot For descriptions of storage space color codes see About storage space color codes on page 31 Select a component to see more information about it Snapshot properties When you select the Snapshot component the Properties for Snapshot table shows Vdisk Name Serial Number Snapshot serial number Name Snapshot name Creation Date Time Status Status Reason Source Volume Name of the volume that the snapshot was taken of Snap pool Name Snap Data The total amount of data associated with the specific snapshot da
72. OG te Ae te ed 148 k ll provisioning AA at Mila Tacs oh ele a Ak AOI ta kre IA te ee nang ee Teed a EL 148 REMC GH OM SUS AI IR hee ame IR Geach hing ata EE end AIEE ae 148 What is the codebase for the CIM clients 2 6 eee nee 148 Glossary saa ule oes Oia sa inthe hs ek eae tet ke MoU Saale IA 149 1 AA A ON ace eal SUG Bide Sha og Rae Avie Lalas sec ite Mike 1 eo 153 8 Contents Figures 1 Relationship between a master volume and its snapshots and snap pool 00 eee eee 24 2 Rolling back a master volume gan 45 da ds OR Pa de Maen Karen WAGE A 25 3 Creating a volume copy from a master volume or a snapshot o n nannaa eee eee 27 4 Intersite and intrasite replication sets 6 644 A A A A AR AA 106 5 Actions that occur during a series of replications 2 ete ee 107 6 Example of primary volume failure is ii a BHM HAR EERE RAH RER AG RON AS ORR OS 109 AssuredSAN 3000 Series RAlDar User Guide 9 10 Figures Tables OONAOORWN Document conventions o 14 RAlDar communication status icons aeaaeae aeaa 16 Settings for nn OS ROS EE eG 0G 18 Example applications and RAID levels io adr de ee RI PAY OEE REE REE OA eS 28 RAID level comparison E Oe OREM RE FRR A RA 29 Vdisk expansion by RAID level 5 o c4 a4 rd ROR ORR AORN ERMA EHR RR EAM CRO 29 Size representations in base 2 and base 10 2 teens 30 Decimal radix point character by locale uds ls RA EERE RRR ERE ES 30 Storage space color codes 4 j
73. P tests What storage arrays are supported Each 3000 Series is supported including FC iSCSI SAS and Hybrid platforms The classes for Dot Hill are DHS_XXX The device namespace for Dot Hill is root dhs AssuredSAN 3000 Series RAlDar User Guide 145 What s new in this release SMI S 1 3 Array Provider support introduced in T230 passes 100 CTP 1 3 tests Support for Block Server Performance subprofile e 20x 30x performance improvements e HP SIM 6 3 subscribe to WBEM events functionality is supported TS230 and above e Dot Hill AssuredSAN products now support SMI S e Fixed removal of indication subscription e Fixed Performance of associator commands is slower than the previous provider e Fixed Memory leak causes SMI S to restart e Fixed Value ValueMaps are not implemented via getClass TS210 support for SMI S 1 3 Array Provider passed 85 of CTP 1 3 tests Support for LUN masking and mapping extrinsic methods ExposePaths HidePaths CreateStorageHardwarelD DeleteStorageHardwarelD e SFCB v1 3 7 CIMOM with v2 22 1 MOFs Support for Server profile e Fixed Property lists do not return correct list TS200 201 support for SMI S 1 3 Array Provider passed 65 of CTP 1 3 tests e Alert Indications with events sent back to the client using HTTP Support for Extent Composition subprofile Support for iSCSI and SAS Target Port subprofiles Support for Masking and Mapping subprofile monitor only e SLP v2 D
74. PRISE dothill VARIABLES connUnitEventId connUnitEventType connUnitEventDescr 132 SNMP reference DESCRIPTION An event has been generated by the storage array Recommended severity level for filtering critical Trap annotations are as follows TYPE Critical storage event SUMMARY Critical storage event d type d description s ARGUMENTS 0 1 2 SEVERITY CRITICAL TIMEINDEX 6 to 4 END AssuredSAN 3000 Series RAlDar User Guide 133 134 SNMP reference B Using FTP to download logs and update firmware Although RAlDar is the preferred interface for downloading logs updating firmware and installing a license you can also use FTP to do these tasks y IMPORTANT Do not attempt to do more than one of the operations in this appendix at the same time They can interfere with each other and the operations may fail Specifically do not try to do more than one firmware update at the same time or try to download system logs while doing a firmware update Downloading system logs To help service personnel diagnose a system problem you might be asked to provide system log data You can download this data by accessing the system s FTP interface and running the get logs command When both controllers are online regardless of operating mode get logs will download a single compressed zip file that includes User configuration settings from both controllers Event logs from both controllers SC
75. Qo AssuredSAN 3000 Series RAIDar User Guide P N 83 00005970 13 01 evision A May 2011 Copyright 2011 Dot Hill Systems Corp All rights reserved Dot Hill Systems Corp Dot Hill the Dot Hill logo AssuredSAN AssuredSnap AssuredCopy AssuredRemote EcoStor SimulCache R Evolution and the R Evolution logo are trademarks of Dot Hill Systems Corp All other trademarks and registered trademarks are proprietary to their respective owners The material in this document is for information only and is subject to change without notice While reasonable efforts have been made in the preparation of this document to assure its accuracy changes in the product design can be made without reservation and without notification to its users ES Adobe PostScript Contents Abou his Gide corra RP aoe ee Gen ees ate eae Ge eae BEES 13 ntended avdience ridad te hee hee gee eek eek cie Bat 13 Prerequisites en e A ele Aa ok AAA ee we oe acs 13 Related documentation 2 20 50004 be0p e900 ea a eo DEY e eee epee ee ee EO 13 Related GOCUMENIGNON 44 545 eib450i Ses witioveriwdedaeabdeeee dives debe e 13 Document conventions and symbols i454 44454 4546 544045 020459 4405 5 08 44 Rod RRR Da RTOS 14 1 Getting AAA 15 Configuring and provisioning a new storage system 2 eee 15 BrOWSErSClUP sd aacra het ina GR AS RAO Ged ia p glad Adee palate ad whip abe e Gop als 15 SIGNING ice dd oad bah be baw bad 15 Tips tar signing in and signing out 2
76. Snapshot being enabled however to get the most out of remote replication it is recommended to enable both features Normally replication snapshots are not accessible to hosts However if Snapshot is enabled a replication snapshot can be exported for use as a standard snapshot Related topics Using e Installing a license on page 37 e Adding page 50 or deleting page 50 a remote system e Checking links to a remote system on page 85 e Using the Replication Setup Wizard on page 110 e Replicating a volume page 112 or a snapshot page 114 e Detaching page 115 and reattaching page 117 a secondary volume e Stopping page 116 and restarting page 117 a vdisk e Suspending page 115 resuming page 115 or aborting page 115 a replication e Exporting a replication image to a snapshot on page 118 e Changing the primary volume for a replication set on page 118 e Viewing replication properties addresses and images for a volume on page 119 e Viewing information about a replication image on page 121 the Replication Setup Wizard If the system is licensed to use remote replication you can use the Replication Setup Wizard to prepare to replicate an existing volume to another vdisk in the local system or to a remote system Before using this wizard read documentation and Resource Library guidelines for your product to learn about replication Then plan the storage systems replication mode and volumes you want to use for the repli
77. Vdisk Optionally change the destination vdisk With Modified Data If the source volume is a snapshot select this option to include the snapshot s modified data in the copy Otherwise the copy will contain only the data that existed when the snapshot was created e Start Schedule Specify a date and a time in the future to be the first instance when the scheduled task will run and to be the starting point for any specified recurrence Date must use the format yyyy mm dd e Time must use the format hh mm followed by either AM PM or 24H 24 hour clock For example 13 00 24H is the same as 1 00 PM e Recurrence Specify interval at which the the task should run Set the interval to at least 2 minutes The default is 1 minute e Time Constraint Specify a time range within which the task should run Date Constraint Specify days when the task should run Ensure that this constraint includes the Start Schedule date e End Schedule Specify when the task should stop running 4 Click Schedule Volume Copy If the task succeeded the schedule is saved and can be viewed in the overview panel for the volume or system 5 If you will copy snapshot modified data make a reminder to unmount unpresent remap the snapshot before the scheduled task runs Aborting a volume copy If the system is licensed to use Volume Copy you can cancel an in progress volume copy operation When the cancellation is complete the destination volume is
78. Volume Copy you can copy a volume or a snapshot to a new standard volume The destination volume must be in a vdisk owned by the same controller as the source volume If the source volume is a snapshot you can choose whether to include its modified data data written to the snapshot since it was created The destination volume is completely independent of the source volume The first time a volume copy is created of a standard volume the volume is converted to a master volume and a snap pool is created in the volume s vdisk The snap pool s size is either 20 of the volume size or the minimum snap pool size whichever is larger Before creating or scheduling copies verify that the vdisk has enough free space to contain the snap pool For a master volume the volume copy creates a transient snapshot copies the data from the snapshot and deletes the snapshot when the copy is complete For a snapshot the volume copy is performed directly from the source this source data may change if modified data is to be included in the copy and the snapshot is mounted presented mapped and I O is occurring to it To ensure the integrity of a copy of a master volume unmount unpresent unmap the volume or at minimum perform a system cache flush and refrain from writing to the volume Since the system cache flush is not natively supported on all operating systems it is recommended to unmount unpresent unmap temporarily The volume copy is for all data on the disk at
79. a controller module that is responsible for human computer interface and computer computer interface functions and interacts with the SC Data in the first sectors of a disk drive that stores all disk vdisk and volume specific information including vdisk membership or spare identification vdisk ownership volumes and snapshots in the vdisk host mapping of volumes and results of the last media scrub The Ethernet port on a controller module through which its Management Controller is connected to the network Fibre Channel Point to Point topology The volume that is the source of data in a replication set and that can be mapped to hosts For disaster recovery purposes if the primary volume goes offline a secondary volume can be designated as the primary volume The primary volume exists in a primary vdisk in the primary or local storage system A virtual volume in the local system that represents a volume in a remote system Proxy volumes are used internally by the controllers to perform actions such as transferring replication data Asynchronous batch replication of block level data from a volume in a primary system to a volume in one or more secondary systems by creating a replication snapshot of the primary volume and copying the snapshot data to the secondary systems via Fibre Channel or SCSI links The capability to perform remote replication is a licensed feature AssuredRemote A conceptual term for replication snapshot
80. a dialog box shows PFU progress and prevents you from performing other tasks until PFU is complete EY NOTE After firmware update has completed on both controllers if the system health is Degraded and the health reason indicates that the firmware version is incorrect verify that you specified the correct firmware file and repeat the update If this problem persists contact technical support Updating expansion module firmware A drive enclosure can contain one or two expansion modules Each expansion module contains an e nclosure management processor EMP All modules of the same model should run the same firmware version Expansion module firmware is updated in either of two ways When you update controller module firmware all expansion modules are automatically updated to a compatible firmware version You can update the firmware in each expansion module by loading a firmware file obtained from the enclosure vendor To update expansion module firmware 1 2 3 nu ha Obtain the appropriate firmware file and download it to your computer or network If the storage system has a single controller stop I O to vdisks before starting the firmware update In the Configuration View panel right click the system and select Tools gt Update Firmware The table titled Current Versions of All Expansion Modules EMPs shows the currently installed versions Select the expansion modules to update Click Browse and sele
81. a drive enclosure is not powered up The vdisk will be automatically dequarantined if the missing disks come online and the vdisk status becomes FTOL fault tolerant and online or if after 60 seconds the vdisk status is QTCR or QTDN e A vdisk that is not running I O loses redundancy plus one more disk The vdisk will be automatically dequarantined if the missing disks come online and the vdisk status becomes FTOL or if after 60 seconds the vdisk status is QTCR or QTDN e A vdisk running I O loses redundancy plus one more disk The vdisk will be automatically dequarantined if the vdisk s status is QTCR or QTDN A vdisk is dequarantined when it is brought back online which can occur in three ways e If the missing disks come online making the vdisk FTOL the vdisk is automatically dequarantined e If after 60 seconds from being quarantined the vdisk is QTCR or QTDN the vdisk is automatically dequarantined The missing disks are marked as failed and the vdisk status changes to CRIT critical or FTDN fault tolerant with down disks AssuredSAN 3000 Series RAlDar User Guide 83 e Dequarantine Vdisk is used to manually dequarantine the vdisk If the missing disks later come online they are marked as LEFTOVR leftover A quarantined vdisk can be fully recovered if the missing disks are restored Make sure that all disks are properly seated that no disks have been inadvertently removed and that no cables have been unplugged Sometimes not
82. a dual controller system and the Partner Firmware Update option is enabled when you update one controller the system automatically updates the partner controller If Partner Firmware Update is disabled after updating firmware on one controller you must log into the partner controller s IP address and perform this firmware update on that controller also For best results the storage system should be in a healthy state before starting firmware update Firmware update via FTP is supported from any of the following versions TS200R021 TS201 R014 TS201RO15 TS201P004 TS210RO16 and TS220R004 From TS100 you must first update to TS201RO15 and then to the latest TS230 version To update controller module firmware 1 Obtain the appropriate firmware file and download it to your computer or network 2 In RAlDar prepare to use FTP a Determine the network port IP addresses of the system s controllers b Verify that the system s FTP service is enabled c Verify that the user you will log in as has permission to use the FTP interface 3 If the storage system has a single controller stop I O to vdisks before starting the firmware update 4 Restart the Management Controller MC in the controller to be updated or if PFU is enabled restart the MCs in both controllers For the procedure see Restarting or shutting down controllers on page 80 5 Open a Command Prompt Windows or a terminal window UNIX and navigate to the directory containing
83. ace 4 If the system has a single controller stop O to vdisks before starting the firmware update 5 Open a Command Prompt Windows or a terminal window UNIX and navigate to the directory containing the firmware file to load 6 Enter ftp controller network address For example ftp 10 1 0 9 7 Log in as an FTP user 8 Either To update all expansion modules enter put firmware file encl To update specific expansion modules enter put firmware file encl EMP bus ID EMP target ID For example put S110R01 bin encl 1 63 A CAUTION Do not perform a power cycle or controller restart during the firmware update If the update is interrupted or there is a power failure the module might become inoperative If this occurs contact technical support The module might need to be returned to the factory for reprogramming It typically takes 1 5 minutes to update each EMP in a drive enclosure Wait for a message that the code load has completed EY NOTE If the update fails verify that you specified the correct firmware file and try the update a second time If it fails again contact technical support 9 If you are updating specific expansion modules repeat step 8 for each remaining expansion module that needs to be updated 10 Quit the FTP session 11 Verify that each updated expansion module has the correct firmware version 138 Using FTP to download logs and update firmware Updating disk firmware You can update
84. acters except double quote or backslash The name is shown in the browser title bar or tab The name location and contact are included in event notifications All four values are recorded in system debug logs for reference by service personnel Click Next to continue Step 6 Configuring event notification Configure up to four email addresses and three SNMP trap hosts to receive notifications of system events 1 In the Email Configuration section set the options Notification Level Select the minimum severity for which the system should send notifications Critical only Error and Critical Warning and Error and Critical Informational all The default is none which disables email notification SMTP Server address The IP address of the SMTP mail server to use for the email messages If the mail server is not on the local network make sure that the gateway IP address was set in the network configuration step Sender Name The sender name that is joined with an e symbol to the domain name to form the from address for remote notification This name provides a way to identify the system that is sending the notification The sender name can have a maximum of 31 bytes Because this name is used as part of an email address do not include spaces For example Storage 1 If no sender name is set a default name is created Sender Domain The domain name that is joined with an symbol to the sender name to form the from ad
85. ailure 5 notparticipating 6 initializing 7 bypass 8 connuU Type nitPortTransmitter Technology of the port transceiver unknown 1 for Fibre Channel ports connuU nitPortModuleType Module type of the port connector unknown 1 connu connuU nitPortWwn nitPortFCId Fibre Channel World Wide Name WWN of the port if applicable Assigned Fibre Channel ID of this port WWN octet for the port or empty string if the port is not present Fibre Channel ID of the port All bits set to 1 if the Fibre Channel ID is not assigned or if the port is not present connUnitPortSn connuU connu nitPortRevision nitPortVendor Serial number of the unit for example for a GBIC If this is not applicable returns an empty string Port revision for example for a GBIC Port vendor for example for a GBIC Empty string Empty string Empty string connuU connu nitPortSpeed nitPortControl Speed of the port in KByte per second 1 KByte 1000 Byte Not supported Port speed in KByte per second or O if the port is not present invalid 2 for an SNMP GET operation and not settable through an SNMP SET operation nitPortName String describing the addressed port See External details for connUnitPortTable on page 131 connuU nitPortPhysical Number Port number represented on the hardware Port number represented on the hardware connu
86. all disks in the vdisk power up Check that all enclosures have restarted after a power failure If these problems are found and then fixed the vdisk recovers and no data is lost If the missing disks cannot be restored for example they failed you can dequarantine the vdisk to restore operation in some cases If you dequarantine a vdisk that is not missing too many disks its status changes to CRIT Then if spares of the appropriate size are available reconstruction begins If a replacement disk reconstruct target is missing on power up the vdisk becomes quarantined when the disk is found the vdisk is dequarantined and reconstruction starts If reconstruction was in process it continues where it left off EY NOTE The only tasks allowed for a quarantined vdisk are Dequarantine Vdisk and Delete Vdisk If you delete a quarantined vdisk and its missing disks later come online the vdisk will reappear as quarantined or offline and you must delete it again to clear those disks A CAUTION If the vdisk does not have enough disks to continue operation when the vdisk is removed from quarantine its status changes to OFFL and its data cannot be recovered To continue operation a RAID 3 or RAID 5 vdisk can be missing one disk a RAID 6 vdisk can be missing one or two disks a RAID 10 or RAID 50 vdisk can be missing one disk per sub vdisk For example a 16 disk RAID 10 vdisk can remain online critical with 8 disks missing if one disk pe
87. anel lists hosts by name or if they are unnamed by ID A storage system with iSCSI ports can be protected from unauthorized access via iSCSI by enabling Challenge Handshake Authentication Protocol CHAP CHAP authentication occurs during an attempt by a host to login to the system This authentication requires an identifier for the host and a shared secret between the host and the system Optionally the storage system can also be required to authenticate itself to the host this is called mutual CHAP Steps involved in enabling CHAP include 20 Getting started e Decide on host node names identifiers and secrets The host node name is typically but not limited to its IQN A secret must have 12 16 characters e Define CHAP entries in the storage system If the node name is a host name then it may be useful to display the hosts that are known to the system Enable CHAP on the storage system Note that this applies to all SCSI hosts in order to avoid security exposures Define the CHAP secret s in the host iSCSI initiator e Request host login to the storage system The host should be displayable by the system as well as the ports through which connections were made If it becomes necessary to add more hosts after CHAP is enabled additional CHAP node names and secrets can be added If a host attempts to login to the storage system it will become visible to the system even if the full login is not successful due to incompatibl
88. anguage Examples 146 81 GB 3 0 Gb s 146 81 GB 3 0 Gb s English Chinese Japanese Korean Dutch French German Italian Spanish Comma Related topics e About user accounts on page 17 About the system date and time You can change the storage system s date and time which are displayed in the System Status panel It is important to set the date and time so that entries in system logs and event notification email messages have correct time stamps You can set the date and time manually or configure the system to use Network Time Protocol NTP to obtain them from a network attached server When NTP is enabled and if an NTP server is available the system time and date can be obtained from the NTP server This allows multiple storage devices hosts log files and so forth to be synchronized If NTP is enabled but no NTP server is present the date and time are maintained as if NTP was not enabled NTP server time is provided in Coordinated Universal Time UTC which provides several options e If you want to synchronize the times and logs between storage devices installed in multiple time zones set all the storage devices to use UTC e If you want to use the local time for a storage device set its time zone offset e Ifa time server can provide local time rather than UTC configure the storage devices to use that time server with no further time adjustment Whether NTP is enabled or disabled the stora
89. apability to create volume copies is a licensed feature AssuredCopy that makes use of snapshot functionality World Wide Name A globally unique 64 bit number that identifies a node process or node port World Wide Node Name A globally unique 64 bit number that identifies a node process World Wide Port Name A globally unique 64 bit number that identifies a node port AssuredSAN 3000 Series RAlDar User Guide 151 152 Glossary Index Symbols asterisk in option name 16 A ALUA 22 array See system asterisk in option name 16 audience 13 B base for size representations 30 browser buttons to avoid 16 setup 15 bytes versus characters 30 C cache configuring auto write through triggers and behaviors 48 configuring host access to 47 configuring system settings 47 configuring volume settings 52 CHAP add or modify records 72 configure for iSCSI hosts 72 configuring 36 43 delete records 72 overview 20 characters versus bytes 30 color codes for storage space 31 CompactFlash properties 102 configuration browser 15 first time 15 system limits 88 Configuration View component icons 31 Configuration View panel using 16 Configuration Wizard using 33 connection mode configuring FC 36 42 controller module properties 100 controllers restarting or shutting down 80 using FTP to update firmware 136 using WBI to update firmware 75 conventions document 14 Coordinated Universal Time UTC 30 current owne
90. ask type task status and task state For the selected schedule two tables appear The Schedule Details table shows e Schedule Name Schedule name e Schedule Specification The schedule s start time and recurrence or constraint settings e Status Uninitialized Schedule is not yet ready to run e Ready Schedule is ready to run e Suspended Schedule is suspended e Expired Schedule has expired e Invalid Schedule is invalid Next Time The Task Details table shows different properties depending on the task type Properties shown for all task types are e Task Name Task name e Task Type ReplicateVolume ResetSnapshot TakeSnapshot or VolumeCopy e Status Uninitialized Task is not yet ready to run e Ready Task is ready to run e Active Task is running AssuredSAN 3000 Series RAlDar User Guide 93 e Error Task has an error Invalid Task is invalid Task State Current step of task processing Steps vary by task type Source Volume Name of the volume to snap copy or replicate Source Volume Serial Source volume serial number Destination Vdisk Name of the destination vdisk for a volume copy Destination Vdisk Serial Destination vdisk serial number Prefix Label that identifies snapshots volume copies or replication images created by this task Count Number of snapshots to retain with this prefix When a new snapshot exceeds this limit the oldest snapshot with the same prefix is deleted
91. at is copy complete on any secondary system in the replication set e Replication snapshot Common sync point For a primary or secondary volume the latest snapshot that is copy complete on all secondary systems in the replication set e Replication snapshot Old Common sync point For a primary or secondary volume a common sync point that has been superseded by a new common sync point e Replication snapshot Only sync point For a primary or secondary volume the only snapshot that is copy complete on any secondary system in the replication set e Replication snapshot Queued For a primary volume a snapshot associated with a replication operation that is waiting for a previous replication operation to complete e Replication snapshot Awaiting replicate For a primary volume a snapshot that is waiting to be replicated to a secondary system Mapping properties When you select the Maps component the Maps for Volume table shows Type Explicit or Default Settings for an explicit mapping override the default mapping Host ID WWPN or IQN Name Host name Ports Controller host ports through which the volume is mapped to the host LUN Volume identifier presented to the host Access Volume access type read write read only no access masked or notmapped Schedule properties If any schedules exist for the snapshot when you select the Schedules component the Schedules table shows information about each schedule For the s
92. at slid We a Mae We bua ea a o As 91 Volume properes up AAA RA 92 Snap pool properties AAA Mies lends Pada hee Leds Haein 92 Viewing information about a volume rote de tute Sat eile oh cee EA eee Sal eh ae Be tek 92 Volume properties td IO IE aay a Sey Snes 4 NCEE Ley ASES aS 93 Mapping propetties veena teree op a e a an Nie ace a ent ae hohe a a ae Rae es 93 Schedule properties A Mie Real SAGA a A 93 Viewing information about a snapshot 42nd e lh hou o hee chee he ar ue DS 94 Snapshot Pro PEM AAA ce ea Gn NOP A A a E BEI TRAC GSI oA SBMA 94 Mapping properties raci atte A A Pe a A ba ea ee eS 95 SCHEGUIE DIODEMIES fee deba ii Baie ace ade elt SS ce teks rate eed Blas 95 Viewing information about a snap pool as c lt atada anta Saad yaks ENA Se GEA de Kes 96 SHAS POO PENES s sisten mace E us Rie a aie E tee AR e 96 Volume properties si amending teri tan arate ates AAA aa Rae ee 97 Snapshot propries ss dees noriai Qa pA Ghia gal deck ae alata ie IEA RAN ech ipl hele a 97 Viewing information about all hosts ais ces cots fee A ts de dto e athe Ol E ek 97 Viewing information about a Haski a AS ee ieee ey Seated SORE AHR LO EA ES 97 POSH PFO PSM eS 2 a ia Se poe hae aries ANO ane Roatan es 97 Mapping properties cn iii A dead ge Oy ek ee Oo 98 Viewing information dboutdmenclosute E 90 2a wt ced A Se eA RS AAS OHA AALS 98 Enclosure Pro ice nua A ho dey ee RR Staion Eh AE eh E AAW AER AA REAP DS 98 DISK Dre Dees cast at nee a ORL
93. at the installed license supports e Enabled or Disabled e In Use Either The number of user created components that exist e N A Not applicable e Max Licensable Either e The number of user created components that the maximum license supports e N A Not applicable e Expiration One of the following Never License is purchased and doesn t expire Number of days remaining for a temporary license e Expired Temporary license has expired and cannot be renewed Expired Renewable Temporary license has expired and can be renewed N A No license installed The panel also shows the licensing serial number controller enclosure serial number and licensing version number controller firmware version for which a license file must be generated in order to successfully install AssuredSAN 3000 Series RAlDar User Guide 37 To create a temporary license 1 In the Configuration View panel right click the system and select Tools gt Install License If the option to create a temporary license is available the End User License Agreement appears in the lower portion of the license panel 2 Read the license agreement ow If you accept the terms of the license agreement select the checkbox A confirmation dialog appears 4 Click Yes to start the trial period The feature s Expiration value shows the number of days remaining in the trial period the trial period will expire on the last day When the trial period expires
94. ate free space Or you can expand the vdisk and then either add a volume or expand a volume to use the new free space You can use a volume s default name or change it to identify the volume s purpose For example a volume used to store payroll information can be named Payroll You can create vdisks with volumes by using the Provisioning Wizard or you can create volumes manually Related topics e About vdisks on page 18 e About volume mapping on page 21 e About volume cache options on page 22 e Volume topics in Provisioning the system on page 55 e Changing a volume s name on page 52 e Changing a volume s cache settings on page 52 e Viewing information about a volume on page 92 About hosts A host identifies an external port that the storage system is attached to The external port may be a port in an I O adapter such as an FC HBA in a server or a port in a network switch The controllers automatically discover hosts that have sent an inquiry command or a report luns command to the storage system Hosts typically do this when they boot up or rescan for devices When the command from the host occurs the system saves the host ID The ID for an FC or SAS host is its WWPN The ID for an iSCSI host is typically but not limited to its IQN You can also manually create entries for hosts You can assign a name to a host to make it easy to recognize for volume mapping A maximum of 64 names can be assigned The Configuration View p
95. ation caresses as la car ca bts ca rr AL at EER wD RELA loros 121 Replication image properties A SA SR AA AAA AAA aes 121 Viewing information about a replication image 0 0 eee eee 121 Replication status properties uva pg da e ek RAR RAT RA AAA OY 122 Primary volume snapshot properties ds 122 Secondary volume snapshot properties o on naana 122 SNMP reference onunu ans 123 Standard MIB II behavior n on onanan 123 Enterprisetraps ars Yo west in pon he A ek Ble a a A Weed O AU Sh eA ea TEO 123 FA MIB 2 2 SNMP behavior das eo ao il pos 123 External details for certain FA MIB 2 Dobles a OE Se Rey A Se 129 External details for connUnitRevsTable o n a A AAA 129 External details for connUnitSensorTable 2 2 cette eee 130 External details for connUnitPortTable eA sue Sa ia Dhaka Ae had ete se da A eae E 131 Configuring SNMP event notification in RAlDar ooooooooooooooo 131 INMPiMANAGE MEN A A A A a lene aang ae ati 131 Enterprise trap MB 0 id O cA A a Mig dae A 131 Using FTP to download logs and update firmware 2 0000 ee eee eee 135 Downloading system logs nta dd hide ot ot NU a tedden re Wag bs Mig hn te Sire We Ra hn Butea we 135 Eeo le iTe MUNO A AN 136 Updating controller module firmware n on anaana 136 Updating expansion module firmware 20 0 eee eee 137 Updating disk firmware seuna ee baths od 139 Installing ales yd ea nts sass Ah O AAA RAS AA ETY 140 Using SMES His a eek Sad e ra eso
96. ature 3 13 Power Supply 1 Temperature enclosure 7 temperature 3 14 Power Supply 2 Temperature enclosure 7 temperature 3 15 Capacitor Pack Voltage Controller A board 8 power 9 16 Capacitor Pack Voltage Controller B board 8 power 9 17 Capacitor Cell 1 Voltage Controller A board 8 power 9 18 Capacitor Cell 1 Voltage Controller B board 8 power 9 19 Capacitor Cell 2 Voltage Controller A board 8 power 9 20 Capacitor Cell 2 Voltage Controller B board 8 power 9 21 Capacitor Cell 3 Voltage Controller A board 8 power 9 22 Capacitor Cell 3 Voltage Controller B board 8 power 9 23 Capacitor Cell 4 Voltage Controller A board 8 power 9 24 Capacitor Cell 4 Voltage Controller B board 8 power 9 25 Capacitor Charge Current Controller A board 8 currentValue 6 26 Capacitor Charge Current Controller B board 8 currentValue 6 27 Power Supply 1 Voltage 12V power supply 5 power 9 28 Power Supply 1 Voltage 5V power supply 5 power 9 29 Power Supply 1 Voltage 3 3V power supply 5 power 9 30 Power Supply 2 Voltage 12V power supply 5 power 9 31 Power Supply 2 Voltage 5V power supply 5 power 9 32 Power Supply 2 Voltage 3 3V power supply 5 power 9 33 Overall Status enclosure 7 other 2 130 SNMP reference External details for connUnitPortTable Table 14 connUnitPortTable index and name values connUnitPortindex connUnitPortName Host Port 1 Controller
97. cation The wizard guides you through the following steps For each step you can view help by clicking the help icon E in the wizard panel As you complete steps they are highlighted at the bottom of the panel If you cancel the wizard at any point no changes are made e Select the primary volume which is an existing volume or snapshot to replicate e Specify whether the replication mode will be local or remote If the replication will be to a remote system that has not already been added to the local system you can add it To do so you must know the user name and password of a Manage user on that system and the system s IP address e Specify the secondary volume You can select an existing replication prepared volume or specify to create a volume in an existing vdisk that has sufficient available space for the replicated data e Confirm changes and apply them y IMPORTANT Before starting this procedure if you intend to use CHAP to authenticate iSCSI login requests between the local system and a remote system do the following e Create a one way CHAP record on each system On the local system the CHAP record must refer to the node name of the remote system On the remote system the CHAP record must refer to the node name of the local system Both records must use the same secret Mutual CHAP is not used between storage systems CHAP records mutual fields can be set but are not used To create a CHAP record see Configuring C
98. ce sizes The Auto option lets the system determine the proper unit for a size Based on the precision setting if the selected unit is too large to meaningtully display a size the system uses a smaller unit for that size For example if the unit is set to TB precision is set to 1 and base is set to 10 the size 0 11709 TB is shown as 117 1 GB Temperature Preference Specifies to use either the Celsius scale or the Fahrenheit scale for temperature values Auto Sign Out Select the amount of time that the user s session can be idle before the user is automatically signed out 2 720 minutes The default is 30 minutes AssuredSAN 3000 Series RAlDar User Guide 17 e Locale The user s preferred display language which overrides the system s default display language Installed language sets include Chinese Simplified Chinese Traditional Dutch English French German Italian Japanese Korean and Spanish Table 3 Settings for default users Password Imonitor Monitor Standard Celsius English Imanage Monitor Manage Iftp Monitor Manage EY NOTE To secure the storage system set a new password for each default user Related topics e Configuring user accounts on page 40 About vdisks A vdisk is a virtual disk that is composed of one or more disks and has the combined capacity of those disks The number of disks that a vdisk can contain is determined by it
99. ct the firmware file to install Click Install Expansion Module Firmware File Messages show firmware update progress A CAUTION Do not perform a power cycle or controller restart during the firmware update If the update is interrupted or there is a power failure the module might become inoperative If this occurs contact technical support The module might need to be returned to the factory for reprogramming It typically takes 3 minutes to update each EMP in a drive enclosure Wait for a message that the code load has completed 7 Verify that each updated expansion module has the correct firmware version 76 Using system tools Updating disk firmware You can update disk firmware by loading a firmware file obtained from your reseller A dual ported disk can be updated from either controller A single ported disk that is in a vdisk or is a dedicated spare for a vdisk must be updated from the controller that owns the vdisk Attempting to update a single ported disk from the non owning controller will not cause any change to the disk Ef NOTE Disks of the same model in the storage system must have the same firmware revision To update disk firmware 1 2 3 Obtain the appropriate firmware file and download it to your computer or network Check the disk manufacturer s documentation to determine whether disks must be power cycled after firmware update Stop I O to the storage system During the update all volumes
100. ctivity unit Settable Display string containing information about this connectivity unit Default Uninitialized Name Default Uninitialized Info connUnitControl Not supported invalid 2 for an SNMP GET operation and not settable through an SNMP SET operation connUnitContact connUnit Location connUnit EventFilter Settable Contact information for this connectivity unit Settable Location information for this connectivity unit Defines the event severity that will be logged by this connectivity unit Settable only through RAlDar AssuredSAN 3000 Series RAlDar User Guide Default Uninitialized Contact Default Uninitialized Location Default info 8 125 Table 11 connUnitNumEvents FA MIB 2 2 objects descriptions and values continued Description Number of events currently in the connUnitEventTable Varies as the size of the Event Table varies connUnitMaxEvents connUnitEventCurrID connUnitRevsTable Maximum number of events that can be defined in the connUnitEventTable Not supported 400 Includes the following objects as specified by the FA MIB2 2 Spec connUnitRevsUnitId connUnit Id of the connectivity unit that contains this revision table Same as connUnitId connUnitRevsIndex Unique value for each connUnitRevsEntry between 1 and connUnitNumRevs See External details for connUnitRevsTable on page 129 connUnitRevsRe
101. d a test message to the configured destinations as described on page 81 Configuring SNMP notification To configure SNMP notification of events 1 2 In the Configuration View panel right click the system and select Configuration gt Services gt SNMP Notification In the main panel set the options e Notification Level Select the minimum severity for which the system should send notifications Critical only Error and Critical Warning and Error and Critical Informational all The default is none which disables SNMP notification e Read Community The SNMP read password for your network This password is also included in traps that are sent The value is case sensitive can include any character except single quote and double quote and can have a maximum of 31 bytes The default is public e Write Community The SNMP write password for your network The value is case sensitive can include any character except single quote and double quote and can have a maximum of 31 bytes The default is private Trap Host Address fields IP addresses of up to three host systems that are configured to receive SNMP traps Click Apply Optionally send a test message to the configured destinations as described on page 81 AssuredSAN 3000 Series RAlDar User Guide 39 Configuring user accounts Adding users To add a user 1 2 In the Configuration View panel right click the system and select Configuration gt User
102. d cache options e Write Policy Select write back or write through The default is write back e Write Optimization Select Standard or Super Sequential The default is Standard e Read Ahead Size Select Default Disabled Maximum or a specific size 64 128 256 or 512 KB 1 2 4 8 16 or 32 MB 3 Click Modify Cache Settings 52 Configuring the system Configuring a snapshot Changing a snapshot s name To change a snapshot s name 1 In the Configuration View panel right click a snapshot and select Configuration gt Modify Snapshot Name 2 Enter a new name A snapshot name is case sensitive cannot already exist in a vdisk cannot include a comma double quote or backslash and can have a maximum of 20 bytes 3 Click Modify Name The new name appears in the Configuration View panel Configuring a snap pool Changing a snap pool s name To change a snap pool s name 1 In the Configuration View panel right click a snap pool and select Configuration gt Modify Snap Pool Name 2 Enter a new name A snap pool name is case sensitive cannot already exist in a vdisk cannot include a comma double quote or backslash and can have a maximum of 20 bytes 3 Click Modify Name The new name appears in the Configuration View panel AssuredSAN 3000 Series RAlDar User Guide 53 54 Configuring the system 3 Provisioning the system Using the Provisioning Wizard The Provisioning Wizard helps you create a vdi
103. dard read ahead caching mode works well for typical applications where accesses are a combination of sequential and random this method is the default For example use this mode for transaction based and database update applications that write small files in random order e For an application that is strictly sequential and requires extremely low latency you can use Super Sequential mode This mode makes more room for read ahead data by allowing the controller to discard cache contents that have been accessed by the host For example use this mode for video playback and multimedia post production video and audio editing applications that read and write large files in sequential order Related topics e Changing a volume s cache settings on page 52 e Changing system cache settings on page 47 e Viewing information about a volume on page 92 AssuredSAN 3000 Series RAlDar User Guide 23 About managing remote systems You can add a management object to obtain information from a remote storage system This allows a local system to track remote systems by their network port IP addresses and cache their login credentials the user name and password for a manage level user on that system The IP address can then be used in commands that need to interact with the remote system After a remote system has been added you can check the connectivity of host ports in the local system to host ports in that remote system A port in the local system can only
104. deleted To abort a volume copy 1 In the Configuration View panel right click the destination volume and then select Provisioning gt Abort Volume Copy The Volume Overview panel shows the operation s progress 2 Click Abort Volume Copy A message confirms that the operation has been aborted 3 Click OK The destination volume is removed from the Configuration View panel Rolling back a volume 68 You can roll back revert the data in a volume to the data that existed when a specified snapshot was created You also have the option of including its modified data data written to the snapshot since it was created For example you might want to take a snapshot mount present map it for read write and then install new software on the snapshot for testing If the software installation is successful you can roll back the volume to the contents of the modified snapshot Provisioning the system A CAUTION e Before rolling back a volume you must unmount unpresent unmap it from data hosts to avoid data corruption If you want to include snapshot modified data in the roll back you must also unmount unpresent unmap the snapshot e Whenever you perform a roll back the data that existed on the volume is replaced by the data on the snapshot that is all data on the volume written since the snapshot was taken is lost As a precaution take a snapshot of the volume before starting a roll back Only one roll back is allowed on the sa
105. discover the volume with no restrictions Therefore this process is not recommended for specialized volumes that require restricted access You can change a volume s default mapping and create modify or delete explicit mappings A mapping can specify read write read only or no access through one or more controller host ports to a volume When a mapping specifies no access the volume is masked You can apply access privileges to one or more of the host ports on either controller To maximize performance map a volume to at least one host port on the controller that owns it To sustain I O in the event of controller failure map to at least one host port on each controller For example a payroll volume could be mapped with read write access for the Human Resources host and be masked for all other hosts An engineering volume could be mapped with read write access for the Engineering host and read only access for other departments hosts A LUN identifies a mapped volume to a host Both controllers share a set of LUNs and any unused LUN can be assigned to a mapping however each LUN can only be used once per volume as its default LUN For example if LUN 5 is the default for Volume1 no other volume in the storage system can use LUN 5 as its default LUN For explicit mappings the rules differ LUNs used in default mappings can be reused in explicit mappings for other volumes and other hosts AssuredSAN 3000 Series RAlDar User Guide 21
106. disk firmware by loading a firmware file obtained from your reseller A dual ported disk can be updated from either controller A single ported disk that is in a vdisk or is a dedicated spare for a vdisk must be updated from the controller that owns the vdisk Attempting to update a single ported disk from the non owning controller will not cause any change to the disk Ef NOTE Disks of the same model in the storage system must have the same firmware revision You can specify to update all disks or only specific disks If you specify to update all disks and the system contains more than one type of disk the update will be attempted on all disks in the system The update will only succeed for disks whose type matches the file and will fail for disks of other types To prepare for update 1 Obtain the appropriate firmware file and download it to your computer or network 2 Check the disk manufacturer s documentation to determine whether disks must be power cycled after firmware update 3 If you want to update all disks of the type that the firmware applies to continue with the next step otherwise in RAIDar for each disk to update a Determine the enclosure number and slot number of the disk b If the disk is associated with a vdisk and is single ported determine which controller owns the vdisk 4 In RAlDar prepare to use FTP a Determine the network port IP addresses of the system s controllers b Verify that the system s
107. dress for remote notification The domain name can have a maximum of 31 bytes Because this name is used as part of an email address do not include spaces For example MyDomain com If the domain name is not valid some email servers will not process the mail Email Address fields Up to four email addresses that the system should send notifications to Email addresses must use the format userrname domain name Each email address can have a maximum of 79 bytes For example Admin MyDomain com 2 In the SNMP Configuration section set the options Notification Level Select the minimum severity for which the system should send notifications Critical only Error and Critical Warning and Error and Critical Informational all The default is none which disables SNMP notification Read Community The SNMP read password for your network This password is also included in traps that are sent The value is case sensitive can include letters numbers hyphens and underscores and can have a maximum of 31 bytes The default is public Write Community The SNMP write password for your network The value is case sensitive can include letters numbers hyphens and underscores and can have a maximum of 31 bytes The default is private Trap Host Address fields IP addresses of up to three host systems that are configured to receive SNMP traps 3 Click Next to continue Step 7 Configuring host ports To enable the system to communicate wi
108. e s operation is degraded Fault The I O module has failed N A Health is not available Health Reason Status Controller ID I O module In port properties When you select an In port a table shows Health OK The port is operating normally A Degraded The port s operation is degraded Fault The port has failed N A Health is not available Health Reason Status Name I O module Out port properties When you select an Out port a table shows Health OK The port is operating normally Degraded The port s operation is degraded Fault The port has failed N A Health is not available Health Reason Status Name 102 Viewing system status Viewing information about a remote system In the Configuration View panel right click a remote system and select View gt Overview The System Information table shows e The username and network port IP addresses that are configured on the local system to access the remote system The configured password is not shown e Information such as the system name location and status that is read from the remote system To sign in to the remote system click one of its IP address links AssuredSAN 3000 Series RAlDar User Guide 103 104 Viewing system status 6 Using AssuredRemote to replicate volumes About the AssuredRemote replication feature AssuredRemote replication is a licensed feature for disaster recovery This feature p
109. e accessed and would be fault tolerant For instance one disk is missing from a RAID 6 e QTCR Quarantined critical At least one disk is missing however the vdisk could be accessed For instance one disk is missing from a mirror or RAID 5 e QTOF Quarantined offline Multiple disks are missing and user data is incomplete When a vdisk is quarantined its disks are write locked its volumes become inaccessible and it is not available to hosts until it is dequarantined If there are interdependencies between the quarantined vdisk s volumes and volumes in other vdisks quarantine may temporarily impact operation of those other volumes For example if the quarantined vdisk contains the snap pool used for snapshot volume copy or replication operations quarantine may temporarily cause the associated master volume to go offline a volume copy or replication operation can also be disrupted if an associated volume snap pool source volume or destination volume goes offline Depending on the operation the length of the outage and the settings associated with the operation the operation may resume automatically resume when the vdisk is dequarantined or may require manual intervention A vdisk can remain quarantined indefinitely without risk of data loss Examples of when quarantine might occur are e At system power up a vdisk has fewer disks online than at the previous power up This may happen because a disk is slow to spin up or because
110. e CHAP definitions This information may be useful in configuring CHAP entries for new hosts This information becomes visible when an iSCSI discovery session is established because the storage system does not require discovery sessions to be authenticated Related topics e Using the Configuration Wizard on page 33 e Changing host interface settings on page 42 e Adding a host on page 70 e Removing hosts on page 70 e Changing a host s name on page 70 e Changing host mappings on page 71 e Viewing information about a host page 97 or all hosts page 97 About volume mapping Each volume has default host access settings that are set when the volume is created these settings are called the default mapping The default mapping applies to any host that has not been explicitly mapped using different settings Explicit mappings for a volume override its default mapping Default mapping enables all attached hosts to see a volume using a specified LUN and access permissions set by the administrator This means that when the volume is first created all connected hosts can immediately access the volume using the advertised default mapping settings This behavior is expected by some operating systems such as Microsoft Windows which can immediately discover the volume The advantage of a default mapping is that all connected hosts can discover the volume with no additional work by the administrator The disadvantage is that all connected hosts can
111. e device for Default http 10 0 0 1 example http 10 1 2 3 lfa web server is not present on the device this string is empty in accordance with the FA MIB2 2 Spec StatusChangeTime sysuptime timestamp of the last O at startup status change event in centiseconds sysupt ime starts at O when the Storage Controller boots and keeps track of the up time statusChangeTime is updated each time an event occurs ConfigurationChangeTime sysuptime timestamp of the last O at startup configuration change event in centiseconds sysupt ime starts at O when the Storage Controller boots and keeps track of the up time configurationChangeTime is updated each time an event occurs ConnUnitTableChangeTime sysuptime timestamp of the last O always entries are not added to or update to the connUnitTable an deleted from the connUnitTable entry was either added or deleted in centiseconds connUnitTable Includes the following objects as specified by the FA MIB2 2 Spec connUnitId Unique identification for this Total of 16 bytes comprised of 8 connectivity unit bytes of the node WWN or similar serial number based identifier for example 1000005013b05211 with the trailing 8 bytes equal to zero connUnitGloballd Same as connUnitld Same as connUnitId 124 SNMP reference Table 11 itType FA MIB 2 2 objects descriptions and values continued Description Type of connectivity unit storage subsystem 11
112. e quote or backslash and can have a maximum of 29 bytes Password A password is case sensitive A password cannot include a comma double quote or backslash User Roles Select Monitor to let the user view system settings or Manage to let the user view and change system settings You cannot change the roles of user manage User Type Select Standard to allow access to standard functions or Advanced to allow access to all functions except diagnostic functions or Diagnostic to allow access to all functions EY NOTE This release has no functions that require Advanced or Diagnostic access a Standard user can access all functions WEBI Access Allows access to the web based management interface CLI Access Allows access to the command line management interface FTP Access Allows access to the file transfer protocol interface which provides a way to install firmware updates and download logs Base Preference The base for entry and display of storage space sizes In base 2 sizes are shown as powers of 2 using 1024 as a divisor for each magnitude In base 10 sizes are shown as powers of 10 using 1000 as a divisor for each magnitude Operating systems usually show volume size in base 2 Disk drives usually show size in base 10 Memory RAM and ROM size is always shown in base 2 Precision Preference The number of decimal places 1 10 for display of storage space sizes Unit Preference Sets the unit for display of storage spa
113. e snapshots 1 2 In the Configuration View panel right click the system or Vdisks or a vdisk and then select Provisioning gt Create Multiple Snapshots In the main panel select each volume to take a snapshot of To select up to 100 items or clear alll selections toggle the checkbox in the heading row Click Create Snapshots If the task succeeds the snapshots appear in the Configuration View panel Provisioning the system Creating a snapshot If the system is licensed to use Snapshots you can create a snapshot now or schedule the snapshot task Ef NOTE The first time a snapshot is created of a standard volume the volume is converted to a master volume and a snap pool is created in the volume s vdisk The snap pool s size is either 20 of the volume size or the minimum snap pool size whichever is larger Before creating or scheduling snapshots verify that the vdisk has enough free space to contain the snap pool To create a snapshot now 1 2 3 4 In the Configuration View panel right click a volume and select Provisioning gt Create Snapshot In the main panel select Now Optionally change the default name for the snapshot A snapshot name is case sensitive cannot already exist in a vdisk cannot include a comma double quote or backslash and can have a maximum of 20 bytes Click Create Snapshot If the task succeeds the snapshot appears in the Configuration View panel To schedule a create
114. e that you specify For example if the starting LUN value is 1 for 30 selected volumes the first volume s mapping is assigned LUN 1 and so forth and the last volume s mapping is assigned LUN 30 For LUN assignment to succeed ensure that no value in the sequence is already in use When specifying access through specific ports the ports and host must be the same type for example FC A CAUTION Volume mapping changes take effect immediately Make changes that limit access to volumes when the volumes are not in use Before changing a volume s LUN be sure to unmount unpresent unmap the volume EY NOTE You cannot map the secondary volume of a replication set EY NOTE When mapping a volume to a host using the Linux ext3 file system specify read write access otherwise the file system will be unable to mount present map the volume and will report an error such as unknown partition table To explicitly map multiple volumes 1 2 In the Configuration View panel right click Vdisks or a vdisk and then select Provisioning gt Map Volumes In the main panel select the volumes to change To select up to 100 items or clear all selections toggle the checkbox in the heading row In the Maps for Selected Volumes table select the host to change access for Select Map AssuredSAN 3000 Series RAlDar User Guide 61 5 Either e Map the volumes to the host by setting a starting LUN selecting ports and setti
115. eating vdisks include e To maximize capacity use disks of similar size e For greatest reliability use disks of the same size and rotational speed e For storage configurations using many disks create a few vdisks each containing many disks instead of many vdisks each containing a few disks e To maximize capacity and disk usage but not performance you can create vdisks larger than 2 TB and divide them into multiple volumes each having a capacity of 2 TB or less This increases the usable capacity of storage configurations by reducing the total number of parity disks required when using parity protected RAID levels This differs from using a volume larger than 2 TB which requires specific support by the host operating system I O adapter and application e For maximum use of a dual controller system s resources each controller should own a similar number of vdisks Set the chunk size to match the transfer block size of the host application Related topics e About RAID levels on page 28 e About spares on page 19 e About volumes on page 20 e Vdisk topics in Provisioning the system on page 55 e Configuring a vdisk on page 50 e Verifying a vdisk on page 82 e Scrubbing a vdisk on page 82 e Viewing information about a vdisk page 90 all vdisks page 89 or the system page 87 e Removing a vdisk from quarantine on page 83 About spares A controller automatically reconstructs a redundant fault tolerant vdisk RAID 1
116. ecifies the IP address of an SNS server The default address is all zeroes e Alternate SNS Address Specifies the IP address of an alternate SNS server which can be on a different subnet The default address is all zeroes For SAS ports there are no host interface options Click Next fo continue To change FC host interface settings 1 For controller host ports that are attached to hosts Set the speed to the proper value to communicate with the host Set the connection mode 2 For each controller set the loop ID to use soft or hard target addressing To use soft target addressing select Soft To use hard target addressing clear Soft and enter an address in the range 0 125 You cannot set the same hard target address for both controllers An asterisk indicates that the value shown will be changed 3 Click Next to continue To change iSCSI host interface settings 1 For each iSCSI port set the IP address netmask and gateway Ensure that each iSCSI host port in the storage system is assigned a different IP address 2 For all iSCSI ports set the authentication jumbo frames link speed and iSNS options 3 Click Next to continue 36 Configuring the system Step 8 Confirming configuration changes Confirm that the values listed in the wizard panel are correct e If they are not correct click Previous to return to previous steps and make necessary changes e If they are correct click Finish to apply the setting cha
117. econdary system a Start the snap pools vdisks For details see Starting a vdisk on page 117 b Start the secondary volumes vdisks c Reattach the secondary volumes For details see Reattaching a secondary volume on page 117 Detached volumes remain associated with their replication sets but are not updated with replication data or with replication control information EY NOTE Itis recommended that the vdisk that you are moving contains only secondary volumes and their snap pools You are allowed to move other volumes along with secondary volumes and their snap pools but be sure that you are doing so intentionally Ef NOTE Ifyou intend to move a vdisk s drive enclosure and you want to allow I O to continue to the other enclosures it is best if it is at the end of the chain of connected enclosures If the enclosure is in the middle of the chain the enclosures must be cabled with no single point of failure so that removing the enclosure does not prevent communication between other enclosures To detach a secondary volume 1 2 In the Configuration View panel right click the secondary volume and select Provisioning gt Detach Replication Volume In the main panel click Detach Replication Volume A message indicates whether the task succeeded or failed When a volume is detached its status is shown as Detached Stopping a vdisk Stopping a vdisk is part of the process for moving a secondary volume into a sec
118. econstructed VRFY The vdisk is being verified VRSC The vdisk is being scrubbed SMART Shows whether Self Monitoring Analysis and Reporting Technology is enabled For more information see Configuring SMART on page 45 Current Owner For the disk s vdisk either the preferred owner during normal operation or the partner controller when the preferred owner is offline Drive Spin Down Count How many times the disk has been spun down Power supply properties When you select a power supply a table shows Health OK The power supply is operating normally A Degraded The power supply s operation is degraded Fault The power supply has failed N A Health is not available Health Reason Status Model Vendor Location Serial Number Revision Part Number Manufacturing Date Manufacturing Location Controller module properties When you select a controller module a table shows Health OK The controller module is operating normally Degraded The controller module s operation is degraded Fault The controller module has failed N A Health is not available Health Reason Status Controller ID Description CPLD Version Storage Controller Code Version Model Storage Controller CPU Type Serial Number 100 Viewing system status e Part Number e Position Hardware Version e Revision e Manufacturing Date e Manufacturing Location Controller module
119. ecreases the amount of time before LEDs are updated to reflect status changes 46 Configuring the system To change the EMP polling rate 1 In the Configuration View panel right click the system and select Configuration gt Advanced Settings gt Disk 2 Set the EMP Polling Rate interval The default is 5 seconds 3 Click Apply Changing system cache settings Changing the synchronize cache mode You can control how the storage system handles the SCSI SYNCHRONIZE CACHE command Typically you can use the default setting However if the system has performance problems or problems writing to databases or other applications contact technical support to determine if you should change this option To change the synchronize cache mode 1 In the Configuration View panel right click the system and select Configuration gt Advanced Settings gt Cache 2 Set Syne Cache Mode to either e Immediate Good status is returned immediately and cache content is unchanged This is the default Flush to Disk Good status is returned only after all write back data for the specified volume is flushed to disk 3 Click Apply Changing the missing LUN response Some operating systems do not look beyond LUN 0 if they do not find a LUN 0 or cannot handle noncontiguous LUNs The Missing LUN Response option handles these situations by enabling the host drivers to continue probing for LUNs until they reach the LUN to which they have access This
120. eftover disks 1 In the Configuration View panel right click the system and then select Tools gt Clear Disk Metadata In the main panel select leftover disks to clear metadata from 2 3 Click Clear Metadata When processing is complete a success dialog appears 4 Click OK Restarting or shutting down controllers You can restart the processors in a controller module when RAIDar informs you that you have changed a configuration setting that requires restarting or when the controller is not working properly Shut down the processors in a controller module before you remove it from an enclosure or before you power off its enclosure for maintenance repair or a move A restart can be performed on either the Storage Controller processor or the Management Controller processor A shut down affects both processors Restarting If you restart a Storage Controller it attempts to shut down with a proper failover sequence which includes stopping all I O operations and flushing the write cache to disk and then the controller restarts The Management Controller is not restarted so it can provide status information to external interfaces If you restart a Management Controller communication with it is lost until it successfully restarts If the restart fails the partner MC remains active with full ownership of operations and configuration information A CAUTION If you restart both controller modules you and users lose access to the system a
121. el right click the system and select Configuration gt Advanced Settings gt System Utilities Set Utility Priority to either e High Use when your highest priority is to get the system back to a fully fault tolerant state This causes heavy I O with the host to be slower than normal This value is the default e Medium Use when you want to balance data streaming with data redundancy e Low Use when streaming data without interruption such as for a web server is more important than data redundancy This enables a utility such as Reconstruct to run at a slower rate with minimal effect on host I O Click Apply AssuredSAN 3000 Series RAlDar User Guide 49 Configuring remote systems Adding a remote system You can add a management object to obtain information from a remote storage system This allows a local system to track remote systems by their network port IP addresses and cache their login credentials The IP address can then be used in commands that need to interact with the remote system To add a remote system 1 In the Configuration View panel either e Right click the local system and select Configuration gt Remote System gt Add Remote System e Right click a remote system and select Configuration gt Add Remote System 2 In the main panel set the options e IP address IP address of a network port on the remote system User Name User name for a user that has Manage level access on the remote system e Password
122. elected schedule the Schedule Details table shows Schedule Name Schedule Specification Schedule Status Next Time Task Type Task Status Task State Source Volume Source Volume Serial Prefix Count Last Created AssuredSAN 3000 Series RAlDar User Guide 95 Viewing information about a snap pool In the Configuration View panel right click a snap pool and select View gt Overview The Snap Pool Overview table shows e The capacity and space usage of the snap pool e The quantity of volumes using the snap pool e The quantity of snapshots in the snap pool For descriptions of storage space color codes see About storage space color codes on page 31 Select a component to see more information about it Snap pool properties When you select the Snap Pool component two tables appear The first table shows the snap pool s name serial number size total capacity vdisk name and free space the number of snapshots in the snap pool and its status The status values are e Available The snap pool is available for use Offline The snap pool is not available for use as in the case where its disks are not present e Corrupt The snap pool s data integrity has been compromised the snap pool can no longer be used The second table shows the snap pool s threshold values and associated policies Three thresholds are defined e Warning The snap pool is moderately full When this threshold is reached an event i
123. elements as its temperature and power sensors the health of its storage elements such as virtual disks and the failure of any redundant component including an I O controller While sensors can be individually queried for the benefit of network management systems all the above elements are combined into an overall status sensor This is available as the unit status connUnitStatus for the only unit and a sensor in the sensor table The revisions of the various components within the device can be requested through SNMP The port section is only relevant to products with Fibre Channel host ports The event table allows 400 recently generated events to be requested Informational minor major or critical event types can be selected whichever type is selected enables the capture of that type and more severe events This mechanism is independent of the assignment of events to be generated into traps The traps section is not supported It has been replaced by an ability to configure trap destinations using the CLI or RAlDar The statistics section is not implemented The following table lists the MIB objects their descriptions and the value set in a 3000 Series storage system Unless specified otherwise objects are not settable Table 11 FA MIB 2 2 objects descriptions and values Description RevisionNumber Revision number for this MIB 0220 UNumber Number of connectivity units present 1 SystemURL Top level URL of th
124. els protocols and transports with a single object oriented model for each type of component in a storage network The specification was created by SNIA to standardize storage management solutions SMI S enables management applications to support storage devices from multiple vendors quickly and reliably because they are no longer proprietary SMI S detects and manages storage elements by type not by vendor File Transfer Protocol FTP A secondary interface for installing firmware updates downloading logs and installing a license Simple Network Management Protocol SNMP Used for remote monitoring of the system through your network Service Debug Used for technical support only In band management interfaces operate through the data path and can slightly reduce O performance The in band option is In band SES Capability Used for in band monitoring of system status based on SCSI Enclosure Services SES data If a service is disabled it continues to run but cannot be accessed To allow specific users to access WEBI CLI or FTP see About user accounts on page 17 To change management interface settings 1 Enable the options that you want to use to manage the storage system and disable the others 2 Click Next to continue 34 Configuring the system Step 5 Setting system information Enter a name contact person location and description for the system Each value can include a maximum of 79 bytes using char
125. en at different points in time The dotted line used for the snapshot borders indicates that snapshots are logical volumes not physical volumes as are master volumes and snap pools Snapshot 1 MasterVolume 1 Monday Snap Pool 1 Snapshot 2 Tuesday Figure 1 Relationship between a master volume and its snapshots and snap pool The snapshot feature uses the single copy on write method to capture only data that has changed That is if a block is to be overwritten on the master volume and a snapshot depends on the existing data in the block being overwritten the data is copied from the master volume to the snap pool before the data is changed All snapshots that depend on the older data are able to access it from the same location in the snap pool this reduces the impact of snapshots when writing to a master volume In addition only a single copy on write operation is performed on the master volume 24 Getting started The storage system allows a maximum number of snapshots to be retained as determined by an installed license For example if your license allows four snapshots when the fifth snapshot is taken an error message informs you that you have reached the maximum number of snapshots allowed on your system Before you can create a new snapshot you must either delete an existing snapshot or purchase and install a license that increases the maximum number of snapshots The snapshot service has two features for re
126. ents of CIM is Managed Object Format MOF Unified Modeling language UML is used to create a graphical representation using boxes and lines of objects and relationships SLP SLP enables computers and other devices to find services in a local area network without prior configuration SLP has been designed to scale from small unmanaged networks to large enterprise networks Profiles SMI S is organized around profiles which describe objects relevant for a class of storage subsystem SMI S includes profiles for arrays Fibre Channel host bus adapters HBAs Fibre Channel switches and tape libraries Other storage devices are expected to be added in the future Profiles are registered with the CIM server and advertised to clients using SLP HP SIM determines which profiles it intends to manage and then uses the CIM model to discover the actual configurations and capabilities AssuredSAN 3000 Series RAlDar User Guide 141 SMI S implementation SMLS is implemented with the following components CIM server called a CIM Object Manager or CIMOM which listens for WBEM requests CIM operations over HTTP from a CIM client and responds e CIM provider which actually communicates to a particular type of managed resource for example HP MSA arrays and provides the CIMOM with information about them In theory providers for multiple types of devices for example HP MSA arrays and Brocade switches can be plugged into the same CIMOM Howeve
127. er Stressed Degraded OK Temperature Sensor DHS_OverallTempSensor a Error Other Non Recoverable Error Degraded Battery Super Cap DHS_SuperCap Unknown Error OK FC Port DHS_FCPort Stopped OK SAS Port DHS_SASTargetPort Stopped OK SCSI Port DHS_ISCSIEthernetPort Stopped OK EY NOTE There is no support for Life Cycle indications in this release SMIS configuration In the default SMI S configuration e The SMI S protocol is turned on e The SMLS interface is enabled for the manage user The following table lists the CLI commands relevant to the SMI S protocol Enable the SMI S protocol set protocols smis enabled Disable the SMI S protocol set protocols smis disabled See the current status show protocols To configure the SMI S interface for other users 1 Log in as manage 2 If the user does not already exist create one using this command create user level manage username 3 Type this command set user username interfaces wbi cli smis ftp 144 Using SMI S Frequently asked questions What is an embedded SMI S array provider The embedded SMI S array provider provides an implementation of SMI S 1 3 using cim xml over HTTPS SMl enabled management clients such as HP SIM or HP Storage Essentials can perform storage management tasks such as monitoring configuring or eventmanagement The provider supports the Array and Server profiles with additional or supporting subprofiles The Server
128. er storage capacity than RAID 5 Maximum disks Expansion capability Cannot expand You can add 1 4 disks at a time Cannot expand You can add 2 or 4 disks at a time You can add one sub vdisk at a time The added sub vdisk must contain the same number of disks as each of the existing sub vdisks AssuredSAN 3000 Series RAlDar User Guide 29 About size representations Parameters such as names of users and volumes have a maximum length in bytes ASCII characters are 1 byte most Latin Western European characters with diacritics are 2 bytes most Asian characters are 3 bytes Operating systems usually show volume size in base 2 Disk drives usually show size in base 10 Memory RAM and ROM size is always shown in base 2 In RAlDar the base for entry and display of storage space sizes can be set per user or per session When entering storage space sizes only either base 2 or base 10 units can be specified Table 7 Size representations in base 2 and base 10 Base 10 KiB kibibyte Size in bytes Unit KB kilobyte Size in bytes MiB mebibyte MB megabyte GiB gibibyte GB gigabyte TiB tebibyte PiB pebibyte TB terabyte PB petabyte EiB exbibyte EB exabyte The locale setting determines the character used for the decimal radix point as shown below Table 8 Decimal radix point character by locale Character Period L
129. erface such as Fibre Channel FC in a remote system When you check links this panel will show this information for each linked host port in the local system e The link type The ID of the port in the local system The ID of each accessible port in the remote system If a host port is not shown then either e It is not linked e Its link type is not supported by both systems To check links to a remote system 1 In the Configuration View panel right click a remote system and select Tools gt Check Remote System Link 2 Click Check Links Checking links in the local system You can check the connectivity of host ports between controllers in the local system A host port can only link to other ports with the same host interface such as Fibre Channel FC When you check links this panel will show this information for each linked host port in both controllers e The link type e The port ID e The ID of each linked port in the local system To check links in the local system 1 In the Configuration View panel right click the local system and select Tools gt Check Local System Link 2 Click Check Links AssuredSAN 3000 Series RAlDar User Guide 85 86 Using system tools 5 Viewing system status Viewing information about the system In the Configuration View panel right click the system and select View gt Overview The System Overview table shows e The system s health OK The system is operating normally
130. erforms asynchronous batch replication of block level data from a volume on a local storage system to a volume that can be on the same system or on a second independent system This second system can be located at the same site as the first system or at a different site 2 TIP For guidelines about setting up and using the AssuredSnap AssuredCopy and AssuredRemote features singly or together see the document AssuredSAN 3000 Series Using Data Protection Software A typical replication configuration involves these physical and logical components e A host connected to a local storage system which is networked via FC or iSCSI ports to a remote storage system as described in installation documentation e Remote system definition A management object on the local system that enables the MCs in the local system and in the remote system to communicate and exchange data e Replication set Associated master volumes that are enabled for replication and that typically reside in two physically or geographically separate storage systems These volumes are also called replication volumes e Primary volume The volume that is the source of data in a replication set and that can be mapped to hosts For disaster recovery purposes if the primary volume goes offline a secondary volume can be designated as the primary volume The primary volume exists in a primary vdisk in the primary system e Secondary volume The volume that is the destination fo
131. ete Volume 3 In the main panel select the volumes to delete To select up to 100 items or clear all selections toggle the checkbox in the heading row 4 Click Delete Volume s 5 Click Delete to continue otherwise click Cancel If you clicked Delete a processing dialog appears If the task succeeds an overview panel and a success dialog appear 6 Click OK As processing completes the deleted items are removed from the Configuration View panel E NOTE The system might be unable to delete a large number of volumes in a single operation If you specified to delete a large number of volumes verify that all were deleted If some of the specified volumes remain repeat the deletion on those volumes Changing default mapping for multiple volumes For all volumes in all vdisks or a selected vdisk you can change the default access to those volumes by all hosts When multiple volumes are selected LUN values are sequentially assigned starting with a LUN value that you specify For example if the starting LUN value is 1 for 30 selected volumes the first volume s mapping is assigned LUN 1 and so forth and the last volume s mapping is assigned LUN 30 For LUN assignment to succeed ensure that no value in the sequence is already in use When specifying access through specific ports the ports and host must be the same type for example FC A CAUTION Volume mapping changes take effect immediately Make changes that limit access
132. eued Images Number of replication images to consider when determining the next image to replicate Used only if the On Collision parameter is set to Oldest Maximum Retry Time Seconds Amount of time in seconds that the replication volume should retry a replication operation on any specific image when errors occur Used only if the On Error parameter is set to Retry On Error Error policy to invoke when errors occur during the replication process Retry or Suspend Link Type Type of ports used to link the primary and secondary volumes FC or iSCSI On Collision Collision policy used to determine the next image to replicate when multiple replication images are queued Newest or Oldest Priority Priority of the replication process on the replication volume Low Medium or High Connection Status Not Attempted Communication has not been attempted to the remote volume e Online The volumes in the replication set have a valid connection but communication is not currently active e Active Communication is currently active to the remote volume Offline No connection is available to the remote system Connection Time Date and time of the last communication with the remote volume or N A Replication addresses If any remote port addresses are associated with this volume when you select the Replication Addresses component the Replication Addresses table shows Connected Ports e For a remote primary or secondary volume this f
133. ew The Replication Volume Overview table shows e Replication properties for the volume e The quantity of replication addresses for the volume e The quantity of replication images for the volume Select a component to see more information about it Replication properties When you select the Replication component a table shows the volume s replication properties including the volume s name serial number status status reason monitor interval and location local or remote primary volume name serial number and status maximum number of queued images maximum retry time error policy collision policy link type and priority and connection status and last connection date time Replication addresses When you select the Replication Addresses component a table shows e Connected Ports e For a remote primary or secondary volume this field shows the IDs of up to two hosts ports in the local system that are connected to the remote system If two ports are connected but only one is shown this indicates that a problem is preventing half the available bandwidth from being used e Fora local primary or secondary volume this field shows N A e Remote Address The address of each host port in the remote system through which the volume is accessible Replication image properties When you select the Replication Images component a table shows replication image details including the image serial number and name snapshot serial numbe
134. ew primary volume Map the new primary volume to hosts as was the original primary volume New York host Munich host Figure 6 Example of primary volume failure If the original primary volume becomes accessible you can set it fo be the primary volume again 1 Take a snapshot of the original primary volume This preserves the volume s current data state for later comparison with the new primary volume Set the original primary volume to be a secondary volume Replicate any data written to the new primary volume to the original primary volume now a secondary volume This can be done as one or more replications On the final replication halt host access to the primary volume to ensure that all data has been transferred to the secondary volume Set the secondary volume the original primary volume to be the new primary volume You can now mount present map the snapshot taken in step 1 and compare it with the new primary volume to identify any data discrepancies and try to recover any data from the snapshot that would otherwise be lost For example you could use host file system tools to find any files modified since a certain time or for a database you could export any differing records from the snapshot and re enter them into the current database AssuredSAN 3000 Series RAIDar User Guide 109 Remote replication licensing The Remote Replication and Snapshot features are separately licensed Remote replication can operate without
135. exist in the system cannot include a comma double quote or backslash and can have a maximum of 20 bytes e Assign to If the system is operating in Active Active ULP mode optionally select a controller to be the preferred owner for the vdisk The default Auto automatically assigns the owner to load balance vdisks between controllers If the system is operating in Single Controller mode the Assign to setting is ignored and the system automatically load balances vdisks in anticipation of the AssuredSAN 3000 Series RAlDar User Guide 55 insertion of a second controller in the future RAID Level Select a RAID level for the vdisk e Number of sub vdisks For a RAID 10 or RAID 50 vdisk optionally change the number of sub vdisks that the vdisk should contain e Chunk size For RAID 3 5 6 10 or 50 optionally set the amount of contiguous data that is written to a vdisk member before moving to the next member of the vdisk For RAID 50 this option sets the chunk size of each RAID 5 sub vdisk The chunk size of the RAID 50 vdisk is calculated as configured chunk size x subvdisk members 1 For NRAID and RAID 1 chunk size has no meaning and is therefore disabled The default size is 512k 2 Click Next to continue Step 3 Selecting disks Select disks to include in the vdisk The Disk Selection Sets table has one row for each sub vdisk in a RAID 10 or RAID 50 vdisk or a single row for a vdisk having another RAID level The table als
136. figuring dynamic spares The dynamic spares feature lets you use all of your disks in redundant vdisks without designating a disk as a spare With dynamic spares enabled if a disk fails and you replace it with a compatible disk the storage system rescans the bus finds the new disk automatically designates it a spare and starts reconstructing the vdisk A compatible disk has enough capacity to replace the failed disk and is the same type SAS or SATA If a dedicated spare global spare or compatible available disk is already present the dynamic spares feature uses that disk to start the reconstruction and the replacement disk can be used for another purpose To change the dynamic spares setting 1 2 3 In the Configuration View panel right click the system and select Configuration gt Advanced Settings gt Disk Either select enable or clear disable the Dynamic Spare Capability option Click Apply Configuring drive spin down for available disks and global spares The drive spin down DSD feature monitors disk activity within system enclosures and spins down inactive disks You can enable or disable DSD for available disks and global spares and set the period of inactivity after which the vdisk s disks and dedicated spares automatically spin down To configure a time period to suspend and resume DSD for all disks see Scheduling drive spin down for all disks on page 46 To configure DSD for a vdisk see Configuring drive s
137. firmation prompt appears Click Yes to continue otherwise click No If you clicked Yes the stop operation begins A message indicates whether the task succeeded or failed If the stop operation succeeds the vdisk s health is shown as Unknown its status is shown as STOP and its subcomponents are no longer displayed in the Configuration View panel If the stop operation succeeded for the secondary volume s vdisk and for its snap pool s vdisk if applicable you can move the disks into the remote system Starting a vdisk Starting a vdisk is part of the process for moving a secondary volume from a primary system into a secondary system The process to move a secondary volume is 1 In the system where the secondary volume resides a Detach the secondary volume For details see Detaching a secondary volume on page 115 b If the secondary volume s vdisk contains other secondary volumes detach those volumes c Stop the secondary volume s vdisk For details see Stopping a vdisk on page 116 d If the secondary volumes snap pools are in other vdisks stop those vdisks e Move the vdisks into the secondary system In the secondary system a Start the snap pools vdisks b Start the secondary volumes vdisks c Reattach the secondary volumes For details see Reattaching a secondary volume on page 117 To start a vdisk 1 In the Configuration View panel right click a stopped vdisk and select Provisioning gt S
138. formation see Dot Hill s Customer Resource Center web site http crc dothill com AssuredSAN 3000 Series RAlDar User Guide 13 Document conventions and symbols Table 1 Document conventions Convention Element Blue text Cross reference links and e mail addresses Blue underlined text Web site addresses Bold font e Key names e Text typed into a GUI element such as into a box e GUI elements that are clicked or selected such as menu and list items buttons and check boxes lfalics font Text emphasis Monospace font File and directory names System output Code Text typed at the command line Monospace italic font Code variables Command line variables Monospace bold font Emphasis of file and directory names system output code and text typed at the command line A CAUTION Indicates that failure to follow directions could result in damage to equipment or data y IMPORTANT Provides clarifying information or specific instructions E7 NOTE Provides additional information X TIP Provides helpful hints and shortcuts 14 About this guide 1 Getting started RAlDar is a web based application for configuring monitoring and managing the storage system Each controller module in the storage system contains a web server which you access when you sign in to RAIDar In a dual controller system you can access all functions from either controller If one controller beco
139. g gt Create Vdisk 2 In the main panel set the options Vdisk name Optionally change the default name for the vdisk A vdisk name is case sensitive cannot already exist in the system cannot include a comma double quote or backslash and can have a maximum of 20 bytes e Assign to If the system is operating in Active Active ULP mode optionally select a controller to be the preferred owner for the vdisk The default Auto automatically assigns the owner to load balance vdisks between controllers If the system is operating in Single Controller mode the Assign to setting is ignored and the system automatically load balances vdisks in anticipation of the insertion of a second controller in the future e RAID Level Select a RAID level for the vdisk e Number of Sub vdisks For a RAID 10 or RAID 50 vdisk optionally change the number of sub vdisks that the vdisk should contain AssuredSAN 3000 Series RAlDar User Guide 57 4 e Chunk size For RAID 3 5 6 10 or 50 optionally set the amount of contiguous data that is written to a vdisk member before moving to the next member of the vdisk For RAID 50 this option sets the chunk size of each RAID 5 sub vdisk The chunk size of the RAID 50 vdisk is calculated as configured chunk size x subvdisk members 1 For NRAID and RAID 1 chunk size has no meaning and is therefore disabled The default size is 512k e Online Initialization If this option is enabled you can use the vdis
140. g the missing LUN response nonna IA AA Mea AAA WHE Ade wR At 47 Controlling host access to the system s write back cache setting ooooooooocooo oooo 47 Changing auto write through cache triggers and behaviors 0 00 0 e eee ee eee eee 48 Configuring partner firmware update nonan sweat alan Benet tea te ene at heed ei don Blac 48 Configuring system utilities nt RA AR A a Bue wey ea ots 48 Configuring background scrub for disco a E E ia 48 Configuring background scrub for disks not in vdisks o oooooooooooooooooooo oo 49 Configuring utility potser dl Ll e a Ls ae fh A a LLG Ls of 49 Configuring remote systems a AS IA RI AA AO AnS 50 Adding a remote SM pS AO Aa 50 Deleting remote systems La cet Dd id di Bae tn alk C44 OOS 50 el AAA O E E thie Loot Rife feck 50 Managing dedicated Pr at A IEE a A AE 50 Changing a vals sami A AS O AO eA ea BA eS 51 Changing a vdisk s owner a bid A EA E A ah 51 Configuring drive spin down for a vdisk E SN rt ds 51 Conta ORIG el Volume s ress ei ai ES AS WADE Me NI AN e o 52 Changing a volume s name pl a O a NA AAA ARA 52 Changing a volume s cache settings nes nananana 52 Configuring a shapshoR ts sA aeni tt eat tla a HE eee a NG Ah me dite aad e hea UI ae IO E 53 Changing a snapshots name AAA PA ES OR AA RAR AS AID 53 Contigurina a HS PO lada Ve Rae et eee Rak Aa 53 Changing a snap pool s name dd et ht o ta E AE AE NAAA SA Y 53 Contents 3 Provisioning the sys
141. ge system does not automatically make time adjustments such as for U S daylight savings time You must make such adjustments manually 30 Getting started Related topics e Changing the system date and time on page 42 About storage space color codes RAlDar panels use the following color codes to identify how storage space is used Table 9 Storage space color codes Overview panels Total space Available free space Used space Reserved overhead space used for parity and snap pools for example Space used by spares Wasted space due to use of mixed disk sizes About Configuration View icons The Configuration View panel uses the following icons to let you view physical and logical components of the storage system Table 10 Configuration View icons Meaning Meaning Show all subcomponents Snapshot Hide all subcomponents b Snap pool Show the component s subcomponents Replication prepared volume Storage system Local secondary volume Enclosure Local replication image Host initiator Remote primary volume Vdisk Remote secondary volume Standard or master volume Remote replication image About vdisk reconstruction If one or more disks fail in a redundant vdisk RAID 1 3 5 6 10 or 50 and compatible spares are available the storage system automatically uses the spares to reconstruct the vdisk Vdisk reconstruction does not require I O to be stopped so
142. h vdisk s health name size free space RAID level status and disk type Status values are described in the vdisk properties section of Viewing information about a vdisk on page 90 Volume properties When you select the Volumes component a table shows each volume s name serial number size and vdisk name Snap pool properties When you select the Snap Pools component a table shows each snap pool s name serial number size free space master volumes snapshots and vdisk name AssuredSAN 3000 Series RAlDar User Guide 87 Snapshot properties When you select the Snapshots component a table shows each snapshot s name serial number source volume snap pool name amounts of snap data unique data and shared data and vdisk name Snap data is the total amount of data associated with the specific snapshot data copied from a source volume to a snapshot and data written directly to a snapshot e Unique data is the amount of data that has been written to the snapshot since the last snapshot was taken If the snapshot has not been written or is deleted this value is zero bytes e Shared data is the amount of data that is potentially shared with other snapshots and the associated amount of space that will be freed if the snapshot is deleted This represents the amount of data written directly to the snapshot It also includes data copied from the source volume to the storage area for the oldest snapshot since that snapshot does not
143. hat identify how storage space is used are described in About storage space color codes on page 31 16 Getting started Icons shown in the Configuration View panel are described in About Configuration View icons on page 31 Tips for using the help window To display help for a component in the Configuration View panel right click the component and select Help To display help for the content in the main panel click either Help in the menu bar or the help icon E in the upper right corner of the panel In the help window click the table of contents icon to show or hide the Contents pane As the context in the main panel is changed the corresponding help topic is displayed in the help window To prevent this automatic context switching click the pin icon s When a help window is pinned you can still browse to other topics within the help window and you can open a new help window You cannot unpin a help window you can only close it If you have viewed more than one help topic you can click the arrow icons to display the previous or next topic System concepts About user accounts The system provides three default user accounts and allows a maximum of 12 user accounts to be configured Any account can be modified or removed except you cannot remove the user you are signed in as User accounts have these options User Name A user name is case sensitive cannot already exist in the system cannot include a comma doubl
144. hat vdisk must also be stopped moved and restarted e If ease of setup is most important specify a vdisk owned by either controller in a remote system After replication is set up you can start replication In either case you must specify whether FC or iSCSI links will be used for replication between the primary and secondary systems and you cannot change this setting for the life of the replication set 108 Using AssuredRemote to replicate volumes Remote replication disaster recovery Replication can continue in the event of system faults such as Temporary communication failure Remote replication will retry replication operations according to user configured policies Controller failure In a dual controller system failover will occur and the surviving controller will take over replication processing until controller recovery occurs Disk or power supply failure If a disaster causes the primary volume to become inaccessible you can set the secondary volume to the primary volume so that volume can be mapped to hosts Disaster recovery requires user intervention because decisions must be made based on the data content of replication volumes and their snapshots 1 2 3 Synchronize the secondary volume to a replication snapshot preferably a replication sync point Any data written to the primary volume since the last completed replication will not be available After synchronization set the secondary volume to be the n
145. he disk is present and is properly communicating with the expander Spun Down The disk is present and has been spun down by the DSD feature e Warning The disk is present but the system is having communication problems with the disk LED processor For disk and midplane types where this processor also controls power to the disk power on failure will result in Error status e Error The disk is present but is not detected by the expander e Unknown Initial status when the disk is first detected or powered on e Not Present The disk slot indicates that no disk is present Type SAS Dual port SAS SAS S Single port SAS e SATA Dual port SATA SATA S Single port SATA e sSAS Dual port SAS SSD e sSATA Dual port SATA SSD Vendor Model Size RPM x1000 Transfer Rate The data transfer rate in Gbit per second Some 6 Gbps disks might not consistently support a 6 Gbps transfer rate If this happens the controller automatically adjusts transfers to those disks to 3 Gbps increasing reliability and reducing error messages with little impact on system performance This rate adjustment persists until the controller is restarted or power cycled Revision Disk firmware revision number Serial Number AssuredSAN 3000 Series RAlDar User Guide 99 Current Job e DRSC Disks in the vdisk are being scrubbed e EXPD The vdisk is being expanded e INIT The vdisk is being initialized e RCON The vdisk is being r
146. he vdisk can perform I O functions for hosts but is not fault tolerant Review the status information and take the appropriate action such as replacing a disk You can use the vdisk but resolve the problem as soon as possible Q N A Health is not available Health Reason Shows more information about the vdisk s health Name Vdisk name Size Total storage space in the vdisk Free Available space in the vdisk Current Owner Either the preferred owner during normal operation or the partner controller when the preferred owner is offline Preferred Owner Controller that owns the vdisk and its volumes during normal operation Serial Number Vdisk serial number RAID RAID level of the vdisk and all of ts volumes Disks Quantity of disks in the vdisk 90 Viewing system status Spares Quantity of dedicated spares in the vdisk Chunk Size e For RAID levels except NRAID RAID 1 and RAID 50 the configured chunk size for the vdisk e For NRAID and RAID 1 chunk size has no meaning and is therefore shown as not applicable N A e For RAID 50 the vdisk chunk size calculated as configured chunk size x subvdisk members 1 For a vdisk configured to use 32 KB chunk size and 4 disk sub vdisks the value would be 96k 32KB x 3 Created Date and time when the vdisk was created Minimum Disk Size Capacity of the smallest disk in the vdisk Status e CRIT Critical The vdisk is online but isn t fault tolerant because some
147. ht click the system and select Configuration gt Advanced Settings gt Cache 2 Either select enable or clear disable the Host Control of Write Back Cache option 3 Click Apply AssuredSAN 3000 Series RAlDar User Guide 47 Changing auto write through cache triggers and behaviors You can set conditions that cause trigger a controller to change the cache mode from write back to write through as described in About volume cache options on page 22 You can also specify actions for the system to take when write through caching is triggered To change auto write through cache triggers and behaviors 1 In the Configuration View panel right click the system and select Configuration gt Advanced Settings gt Cache 2 In the Auto Write Through Cache Trigger Conditions section either select enable or clear disable the options Controller Failure Changes to write through if a controller fails Disabled by default Cache Power Changes to write through if cache backup power is not fully charged or fails Enabled by default CompactFlash Changes to write through if CompactFlash memory is not detected during POST fails during POST or fails while the controller is under operation Enabled by default e Power Supply Failure Changes to write through if a power supply unit fails Disabled by default e Fan Failure Changes to write through if a cooling fan fails Disabled by default Overtemperature Failure Forces a
148. icate volumes An added benefit of using snapshots for replication is that these snapshots can be kept and restored later in the event of a non hardware failure such as virus attack Since the replication source is a snapshot any writes performed on the primary volume after the snapshot is taken are not replicated by that task This gives you more control over what is contained in each replication image EY NOTE Because replication is not synchronous continuous data in a secondary volume is only as current as the last replication that completed successfully Replications can be performed manually or scheduled Snapshot operations are O intensive Every write to a unique location in a master volume after a snapshot is taken will cause an internal read and write operation to occur in order to preserve the snapshot data If you intend to create snapshots of create volume copies of or replicate volumes in a vdisk ensure that the vdisk contains no more than four master volumes snap pools or both For example 2 master volumes and 2 snap pools 3 master volumes and 1 snap pool 4 master volumes and O snap pools Replication actions The following figure illustrates actions that occur during a series of replications from System 1 to System 2 System 1 1000010 ONAM rn 1 Take initial snapshot and initiate replication 6 Second snapshot taken on secondary volume This is 2 Initial replication consists of a full da
149. ider supports the following CIM operations e getClass e enumerateClasses e enumerateClassNames e getinstance e enumeratelnstances e enumeratelnstaneceNames e associators e associatorNames references referenceNames invokeMethod 142 Using SMI S SMI S profiles Table 15 Supported SMI S profiles Profile Subprofile Description Array Describes RAID array systems It provides a high level overview of the array system Block Services Defines a standard expression of existing storage capacity the assignment of capacity to Storage Pools and allocation of capacity to be used by external devices or applications Physical Package Models information about a storage system s physical package and optionally about internal sub packages Health Defines the general mechanisms used in expressing health in SMI S Server Defines the capabilities of a CIM object manager based on the communication mechanisms that it supports FC Target Ports Models the Fibre Channel specitic aspects of a target storage system SAS Target Ports Models the SAS specific aspects of a target storage system iSCSI Target Ports Models the iSCSI specific aspects of a target storage system Access Points Provides addresses of remote access points for management services Fan Specializes the DMTF Fan profile by adding indications Power Supply Specializes the DMTF Power Supply profile by adding indications Profile Regi
150. ie ai hee he EEG ae SAGES OG BOGS Bode BO Pa eS 31 Configuration View icons sala e rta A Rabe A pita iaa 31 FA MIB 2 2 objects descriptions and values rd RS 124 connUnitRevsTable index and description values 2 0 eee tenes 129 connUnitSensorTable index name type and characteristic values oo o ooooooooo 130 connUnitPortTable index and name values o ooooooooooo eee eens 131 Supported SMI S profiles 4 tico ardid re da OEE taa 143 CIM Alert indication events da AN AR A NAAA doa 144 AssuredSAN 3000 Series RAlDar User Guide 11 12 Tables About this guide This guide provides information about managing an AssuredSAN 3000 Series storage system by using its web interface RAIDar Storage Management Utility Intended audience This guide is intended for storage system administrators Prerequisites Prerequisites for using this product include knowledge of e Network administration Storage system configuration Storage area network SAN management and direct attach storage DAS e Fibre Channel Serial Attached SCSI SAS Internet SCSI iSCSI and Ethernet protocols Related documentation In addition to this guide please refer to online help and the following documents for this product Related documentation For information about Enhancements known issues and late breaking information not included in product documentation See Release Notes Overview of product shipkit content
151. ield shows the IDs of up to two hosts ports in the local system that are connected to the remote system If two ports are connected but only one is shown this indicates that a problem is preventing half the available bandwidth from being used e Fora local primary or secondary volume this field shows N A Remote Address The address of each host port in the remote system through which the volume is accessible 120 Using AssuredRemote to replicate volumes Replication images If any replication images exist for this volume when you select the Replication Images component the Replication Images table shows information about each image For the selected image the Replication Images table shows e Image Serial Number Replication image serial number Image Name User defined name assigned to the primary replication image Snapshot Serial Number Replication snapshot serial number associated with the image The replication snapshot is associated with the replication volume specified in the request e Snapshot Name Replication snapshot name associated with the image For a secondary replication image this value is not filled in until the replication is completed e Creation Date Time Date and time when the replication image was created on the replication volume Viewing information about a remote primary or secondary volume In the Configuration View panel right click a remote primary or secondary volume and select View gt Overvi
152. ill OBJECT IDENTIFIER enterprises 347 AssuredSAN 3000 Series RAlDar User Guide 131 Related traps dhEventInfoTrap TRAP TYPE ENTERPRISE dothill VARIABLES connUnitEventId connUnitEventType connUnitEventDescr DESCRIPTION An event has been generated by the storage array Recommended severity level for filtering info Trap annotations are as follows TYPE Informational storage event SUMMARY Informational storage event d type d description s ARGUMENTS 0 1 2 SEVERITY INFORMATIONAL TIMEINDEX 6 raci dhEventWarningTrap TRAP TYPE ENTERPRISE dothill VARIABLES connUnitEventId connUnitEventType connUnitEventDescr DESCRIPTION An event has been generated by the storage array Recommended severity level for filtering warning Trap annotations are as follows TYPE Warning storage event SUMMARY Warning storage event d type d description s ARGUMENTS 0 1 2 SEVERITY MINOR TIMEINDEX 6 S202 dhEventErrorTrap TRAP TYPE ENTERPRISE dothill VARIABLES connUnitEventId connUnitEventType connUnitEventDescr DESCRIPTION An event has been generated by the storage array Recommended severity level for filtering error Trap annotations are as follows TYPE Error storage event SUMMARY Error storage event d type d description s ARGUMENTS 0 1 2 SEVERITY MAJOR TIMEINDEX 6 22 3 dhEventCriticalTrap TRAP TYPE ENTER
153. ing a pointin time image of the data This pointin time image is then replicated to the secondary volume by copying the data represented by the snapshot using a transport medium such as TCP IP iSCSI or Fibre Channel The first replication copies all data from the primary volume to the secondary volume subsequent replications use sparse snapshots Replication snapshots are retained for both the primary volume and the secondary volume When a matching pair of snapshots is retained for both volumes the matching snapshots are referred to as replication sync points The two snapshots one on each volume are used together as a synchronization reference point minimizing the amount of data to transfer The two snapshots in a sync point are assigned the same image ID which uniquely identifies that the data in those snapshots are from the same point in time image and are block for block identical When a replication snapshot is created from a standard snapshot while that snapshot remains present the replication snapshots total data represented is zero bytes This behavior occurs because the snapshot data remains associated with the standard snapshot and there is no data specifically associated with the replication snapshot If the standard snapshot is deleted its data becomes associated with is preserved by the replication snapshot and the replication snapshot s size changes to reflect the size of the deleted snapshot 106 Using AssuredRemote to repl
154. is reached or the maximum number of images is reached after which the oldest image will be deleted as new images are created Start Schedule Specify a date and a time in the future to be the first instance when the scheduled task will run and to be the starting point for any specified recurrence Date must use the format yyyy mm dd Time must use the format hh mm followed by either AM PM or 24H 24 hour clock For example 13 00 24H is the same as 1 00 PM e Recurrence Specify the interval at which the schedule should run Set the interval to at least 30 minutes The default is 30 minutes e Time Constraint Specify a time range within which the schedule should run e Date Constraint Specify days when the schedule should run Ensure that this constraint includes the Start Schedule date End Schedule Specify when the schedule should stop running Continue with step 7 6 If you do not want to start or schedule replication clear the Initiate Replication checkbox The replication set will still be created and you can replicate the volume at a later time AssuredSAN 3000 Series RAIDar User Guide 113 7 Click Apply Within a couple of minutes the replication set is created and the following changes occur in the Configuration View panel e Under the primary vdisk e The selected primary volume changes to a master volume and is designated as a Primary Volume e If the secondary volume is on a remote system the secondary vol
155. is the default enables a LIP loop initialization process to determine the loop ID Use this setting if the loop ID is permitted to change after a LIP or power cycle To use this option select Soft Configuring the system e Hard target addressing requests a specific loop ID that should remain after a LIP or power cycle If the port cannot acquire the specified ID it is assigned a soft target address Use this option if you want ports to have specific addresses if your system checks addresses in reverse order lowest address first or if an application requires that specific IDs be assigned to recognize the controller To use this option clear Soft and enter an address in the range 0 125 You cannot set the same hard target address for both controllers 5 Click Apply If you changed a loop ID setting a message specifies that you must restart the controller to make the change take effect An asterisk indicates that the value shown will be changed To change iSCSI host interface settings 1 In the Configuration View panel right click the system and select Configuration gt System Settings gt Host Interfaces 2 Set the port specific options e IP Address For each controller assign one port to one subnet and the other port to a second subnet Ensure that each iSCSI host port in the storage system is assigned a different IP address For example in a system having only iSCSI ports e Controller A port O 10 10 10 100 e Controller A
156. iscovery e Performance Improvement SFCB v1 3 7 CIMOM with v2 22 1 MOFs TS100 February 2010 SMI S 1 3 Array Provider e SFCB v1 3 5 CIMOM with v2 22 1 MOFs What is the architecture The architecture requirements for the embedded SMI S Array provider are to work within the MC architecture use limited disk space use limited memory resources and be as fast as a proxy provider running on a server The provider is an MC application and works by making MC CLI requests An SMI S cache caches these requests for 30 to 60 seconds The disk space used is about 3 MB without qualifiers and 8 MB with qualifiers The CIMOM Common Information Model Object Manager used is the open source SFCB Small Footprint CIM Broker CIMOM SFCB is a lightweight CIM daemon that responds to CIM client requests and supports the standard CIM XML over http https protocol The provider is a CMPI Common Management Protocol Interface provider and uses this interface To reduce the memory footprint a third party package called CIMPLE www simplewbem org is used For more information on SFCB go to sblim cvs sourceforge net sblim sfcb README view markup What CIM operations are supported SFCB provides a full set of CIM operations including GetClass ModifyClass CreateClass DeleteClass EnumerateClasses EnumerateClassNames Getlnstance Deletelnstance Createlnstance ModifyInstance Enumeratelnstances EnumeratelnstanceNames InvokeMethod MethodCall ExecQuery
157. isk page 90 or all vdisks page 89 About volumes A volume is a logical subdivision of a vdisk and can be mapped to controller host ports for access by hosts A mapped volume provides the storage for a file system partition you create with your operating system or third party tools The storage system presents only volumes not vdisks to hosts A vdisk can have a maximum of 128 volumes You can create a vdisk that has one volume or multiple volumes Single volume vdisks work well in environments that need one large fault tolerant storage space for data on one host A large database accessed by users on a single host that is used only for that application is an example e Multiple volume vdisks work well when you have very large disks and you want to make the most efficient use of disk space for fault tolerance parity and spares For example you could create one 10 TB RAID 5 vdisk and dedicate one spare to the vdisk This minimizes the amount of disk space allocated to parity and spares compared to the space required if you created five 2 TB RAID 5 vdisks However I O to multiple volumes in the same vdisk can slow system performance When you create volumes you can specify their sizes If the total size of a vdisk s volumes equals the size of the vdisk you will not have any free space Without free space you cannot add or expand volumes If you need to add or expand a volume in a vdisk without free space you can delete a volume to cre
158. k while it is initializing but because the verify method is used to initialize the vdisk initialization takes more time If this option is disabled you must wait for initialization to complete before using the vdisk but initialization takes less time Online initialization is fault tolerant Select disks to include in the vdisk Only available disks have checkboxes The number of disks you can select is determined by the RAID level and is specified in the Disk Selection Sets table When you have selected enough disks a checkmark appears in the table s Complete field Click Create Vdisk If the task succeeds the new vdisk appears in the Configuration View panel Deleting vdisks A CAUTION Deleting a vdisk removes all of its volumes and their data To delete vdisks 1 2 6 Verify that hosts are not accessing volumes in the vdisks that you want to delete In the Configuration View panel either e Right click the system or Vdisks and then select Provisioning gt Delete Vdisks e Right click a vdisk and select Provisioning gt Delete Vdisk Inthe main panel select the vdisks to delete To select up to 100 items or clear all selections toggle the checkbox in the heading row Click Delete Vdisk s A confirmation dialog appears Click Delete to continue otherwise click Cancel If you clicked Delete a processing dialog appears If the task succeeds an overview panel and a success dialog appear Click OK
159. l contain the following data Device status summary which includes basic status and configuration data for the system Each controller s event log Each controller s debug log Each controller s boot log which shows the startup sequence Critical error dumps from each controller if critical errors have occurred CAPI traces from each controller EY NOTE The controllers share one memory buffer for gathering log data and for loading firmware Do not try to perform more than one save logs operation at a time or to perform a firmware update operation while performing a save logs operation To save logs 1 2 In the Configuration View panel right click the system and select Tools gt Save Logs In the main panel a Enter your name email address and phone number so support personnel will know who provided the log data b Enter comments describing the problem and specifying the date and time when the problem occurred This information helps service personnel when they analyze the log data Comment text can be 500 bytes long Click Save Logs EY NOTE In Microsoft Internet Explorer if the download is blocked by a security bar select its Download File option If the download does not succeed the first time return to the Save Logs panel and retry the save operation Log data is collected which takes several minutes When prompted to open or save the file click Save e If you are using Firefox and have a do
160. lete on all secondary systems is a common sync point a common sync point that has been superseded by a new common sync point is an old common sync point Serial Attached SCSI interface protocol or disk drive architecture Serial ATA disk drive architecture Storage Controller The processor located in a controller module that is responsible for RAID controller functions The SC is also referred to as the RAID controller The volume that is the destination for data in a replication set and that is not accessible to hosts For disaster recovery purposes if the primary volume goes offline a secondary volume can be designated as the primary volume The secondary volume exists in a secondary vdisk in a secondary or remote storage system The contents of a secondary volume are in a constant state of flux and are not in a consistent state while a replication is in process Only snapshots that are associated with a secondary volume are data consistent secret SES single port disk snap pool snapshot SSD ULP unwritable cache data vdisk volume volume copy WWN WWNN WWPN For use with CHAP a password that is shared between an initiator and a target to enable authentication SCSI Enclosure Services A disk that is connected to both controllers so its data path is not fault tolerant A single port disk s type is shown as SAS S or SATA S A volume that stores data that is specific to snapshots of an associa
161. letes any images that the primary volume did not have Because the secondary volume may not have successfully replicated all the images associated with the primary volume the secondary volume might have a subset of the primary volume s images 118 Using AssuredRemote to replicate volumes If the primary system comes back online you can set its volume to be the primary volume again To change the secondary volume to the primary volume 1 On the secondary system in the Configuration View panel right click the secondary volume and select Provisioning gt Set Replication Primary Volume 2 In the main panel select the secondary volume in the list 3 Click Set Replication Primary Volume A message indicates whether the task succeeded or failed If it succeeded in the Configuration View panel the volume s designation changes from Secondary Volume to Primary Volume Ef NOTE The offline primary volume remains designated a Primary Volume To change the primary volume back to the original primary volume 1 On the primary system a Create a standard snapshot page 65 to preserve the primary volume s last data level b In the Configuration View panel right click the primary volume and select Provisioning gt Set Replication Primary Volume c In the main panel select the primary volume in the list d Click Set Replication Primary Volume A message indicates whether the task succeeded or failed 2 On the secondary system
162. licies 96 viewing information about 96 snap pools deleting 70 renaming 53 snapshot creating 65 exporting replication image to 118 preparing replication by using the Replication Setup Wizard 110 properties 88 94 97 replicating 114 resetting to current data in master volume 66 viewing information about 94 snapshot mapping properties 95 snapshots about 24 creating for multiple volumes 64 deleting 65 renaming 53 SNMP configuring traps 131 enterprise trap MIB 131 enterprise traps 123 external details for connUnitPortTable 131 external details for connUnitRevsTable 129 external details for connUnitSensorTable 130 FA MIB 2 2 behavior 123 FA MIB 2 2 objects descriptions and values 124 management 131 MIB II behavior 123 overview 123 setting event notification 131 sorting a table 16 spares about 19 See also dedicated spare dynamic spare and global spare storage system See system synchronize cache mode configuring 47 system configuration limits 88 data protection tips for a single controller 32 properties 87 restore default configuration settings 79 156 Index viewing event log 88 viewing information about 87 system information configuring 45 configuring with Configuration Wizard 35 System Status panel using 16 system utilities configuring 48 T tables sorting 16 task schedule See schedule temperature configure controller shutdown for high 48 thresholds and policies snap pool 96 time and date about 30 co
163. links between controllers in the local system if you already know the status of links you can clear the Check Links checkbox to skip this task Click Next to continue If there are no links between the controllers a message appears and only vdisks and volumes that are owned by the same controller as the primary volume will appear in the next step To replicate to a remote system 1 2 Select Remote Replication In the Remote System list look for the remote system that you want to use e If you find the system select it and continue with step 5 e If you don t find it add it as described in step 3 To add a remote system in the Add new Remote System area a Enter the IP address of a network port on the remote system b Enter the user name of a user with a Manage role on the remote system c Enter that user s password d Click Add Remote System If task succeeds the new remote system appears in the Remote System list and is selected Although it is recommended to check host port links between the two systems this can take up to 3 minutes so if you already know the status of links you can clear the Check Links checkbox to skip this task Click Next to continue If there are no links to the remote system a message appears and you cannot proceed For a hybrid system if only one link type is up only that link type will appear in the next step AssuredSAN 3000 Series RAlDar User Guide 111 Step 4 Step 5
164. llect its unique MC log data AssuredSAN 3000 Series RAlDar User Guide 135 Ef NOTE You must uncompress a zip file before you can view the files it contains To examine diagnostic data first view store yyyy mm dd hh mm_ss logs Updating firmware You can update the versions of firmware in controller modules expansion modules in drive enclosures and disks X TIP To ensure success of an online update select a period of low I O activity This helps the update complete as quickly as possible and avoids disruptions to host and applications due to timeouts Attempting to update a storage system that is processing a large O intensive batch job will likely cause hosts to lose connectivity with the storage system EY NOTE If a vdisk is quarantined firmware update is not permitted due to the risk of losing unwritten data that remains in cache for the vdisk s volumes Before you can update firmware you must resolve the problem that is causing the vdisk to be quarantined as described in Removing a vdisk from quarantine on page 83 Updating controller module firmware A controller enclosure can contain one or two controller modules In a dual controller system both controllers should run the same firmware version Storage systems in a replication set must run the same firmware version You can update the firmware in each controller module by loading a firmware file obtained from the enclosure vendor If you have
165. logs from both controllers SC crash dumps from both controllers CAPI trace from the controller receiving the command MC log from the controller receiving the command Controller environment including data about attached disks enclosures and so forth It is recommended to use a command line based FTP client A GUl based FTP client might not work To download logs to a file 1 In RAlDar prepare to use FTP a Determine the network port IP addresses of the system s controllers see Changing network interface settings on page 44 b Verify that the system s FTP service is enabled see Changing management interface settings on page 38 c Verify that the user you will log in as has permission to use the FTP interface see Modifying users on page 41 Open a Command Prompt Windows or a terminal window UNIX and navigate to the destination directory for the log file Enter ftp controller network address For example ftp 10 1 0 9 Log in as a user that has permission to use the FTP interface Enter get logs filename zip where filename is the file that will contain the logs It is recommended to choose a filename that identifies the system controller and date For example get logs Storage2 A 20100124 zip Wait for the message Operation Complete to appear Quit the FTP session If the problem to diagnose seems specific to user interface behavior repeat step 3 through step 6 on the partner controller to co
166. lti 65 RESEHING Cr snaps h ta sisri aaie 4 Owed A NO 66 Creating a volume Cp wna OleOle Ou oe Oa ee Bare sR a 0 ok ed 67 ADOHING A volume copy 3d o 5 with sae AA EELS Pe he RA AONE REAA 68 Rolling bac a YOMO A A Tee We ee ae ado 68 Creating Snap pool ra AA a Geshe 69 Deleting snap pools cn IAEA ESA AAA A 70 o A A A A OA 70 ds o A A O EN 70 Changing a host s name e e ad Bn Riek hae tee Nl Bese AAA ACA 70 Changing Most mappindsas Git A a LA LS A RO emia oe ele atole 71 Config ring CHAP asss a RA Ke An E A A E Mt eos 72 Medityingarsehedule vos ts a ER A AA n 72 Deleting schedules 006 A a a ie dd a om cede dd 73 A o A O 75 Updating firmware re RR A 75 Updating controller module firmware AS ARA A RA 75 Updating expansion module firmware 0d a a AA A A eae EN Reese 76 Updating disk firmware uo o ad eae oD EA A DR DA rt 77 A ae Nal pb eto a eden ele Ae eal ong a A A 78 Resetting a HOSP E A hc ALOIS BUN a A A IO tones 4 ieee 9 te TA 78 Rescanning disk channels gtgra 22 tint 5 nian a eke aol Set A we a ae als 79 Restoring system defaults x a SHA Mak oh OOS Hawaiian Gd KA eee Ge Toe bAw aks 79 Clearing disk metadata e pes eek pat es a pd ble 79 Restarting or shutting down controllers 000 RDA RA A RARA AN NN de 80 Resta a a A EN Os 80 A A ee Re OE bly os Metethsh tank Baek 4 81 Testing event notifications AAA II doe dena te te ead beh Guba etek Teal ty Gl that Beh A re bo 81 Expanding a valsk rai eee eee AS AS E re
167. lume n on A AA ADA 111 Step 3 Selecting the replication mode o n wild eke Waa OG a 111 Step 4 Selecting the secondary volume Lt Ol BONS Awe REG LES 112 Step 5 Confirming replication settings o o RE Re eR eo oR hk We RaSh wa 112 Replicating a Wola mies Sera ts n a hehe en A OR 112 Replicating a snapshot hoi ai be Roba th kee bot mde RAS Ee ed Radek ea Ded 114 Removing replication from a volume s acon gant ene Sena a BARR eRe EAE REE RARE 114 Suspending replication dio AS ey dy Ra y AA AR A AA EAH bck 115 Resuming replication RRA ame aia ee Rake eae eo Rae Ee 115 Aborting replication ca eink dee amp ah Bn Dah Gears eee de AS BUA EH SEES VEE NE 115 Detaching a secondary volt ce eed Jee cents a ere ee amet ea ee a ae 115 Stopping va sks ai ace Sa Ree tas GE SRR AI AA RAR ens BOS Gee ht Te 116 SIGNI a E Reams A 117 Reattaching a secondary volume dde we hea aie bg Ge Rath pe A AO 117 Exporting a replication image to a snapshot cia aa a Aden td a tes 118 Changing the primary volume for a replication set o n nananana 118 Viewing replication properties addresses and images for a volume nonna nanana cece eee eee 119 Replication Properties RA Ga anche Gee Pe ee bb 120 Replication address ca CBRE MOR ns aid dt elds ri er dd 120 REP CCHS GES ss pny PA OR de AAN EN ANA 121 Viewing information about a remote primary or secondary volume 2 2 0 000 eee eee 121 Replication properties ina all ala Mid 4 hed hi oa 1 21 Replic
168. ly to the snapshot It also includes data copied from the source volume to the storage area for the oldest snapshot since that snapshot does not share data with any other snapshot For a snapshot that is not the oldest if the modified data is deleted or if it had never been written to this value is zero bytes Viewing information about all hosts In the Configuration View panel right click Hosts and select View gt Overview The Hosts table shows the quantity of hosts configured in the system For each host the Hosts Overview table shows the following details Host ID WWPN or IQN Name User defined nickname for the host e Discovered If the host was discovered and its entry was automatically created Yes If the host entry was manually created No e Mapped If volumes are mapped to the host Yes otherwise No e Host Type FC or iSCSI Viewing information about a host In the Configuration View panel right click a host and select View gt Overview The Host Overview table shows e Host properties e The quantity of mappings for the host Select a component to see more information about it Host properties When you select the Host component the Properties for Host table shows Host ID WWPN or IQN e Name User defined nickname for the host e Discovered If the host was discovered and its entry was automatically created Yes If the host entry was manually created No e Mapped If volumes are mapped to the ho
169. mation about 92 volume cache options about 22 volume copy about 26 volume mapping about 21 changing default mapping for multiple volumes 60 changing explicit mapping for multiple volumes 61 properties 93 unmapping multiple volumes 64 volume masking 21 volume set creating 59 volumes about 20 deleting 60 W WBI about 15 communication status icon 16 session hang 16 signing in 15 signing out 16 web browser interface See WBI AssuredSAN 3000 Series RAIDar User Guide 157 158 Index
170. me on page 92 e Deleting schedules on page 73 About the AssuredRemote replication feature See page 105 About the VDS and VSS hardware providers Virtual Disk Service VDS enables host based applications to manage vdisks and volumes Volume Shadow Copy Service VSS enables host based applications to manage snapshots A license is required to enable VDS and VSS hardware providers so hosts can manage vdisks volumes and snapshots in the storage system For more information see the VDS and VSS hardware provider documentation for your product About RAID levels The RAID controllers enable you to set up and manage vdisks whose storage may be spread across multiple disks This is accomplished through firmware resident in the RAID controller RAID refers to vdisks in which part of the storage capacity may be used to store redundant data The redundant data enables the system to reconstruct data if a disk in the vdisk fails Hosts see each partition of a vdisk known as a volume as a single disk A volume is actually a portion of the storage space on disks behind a RAID controller The RAID controller firmware makes each volume appear as one very large disk Depending on the RAID level used for a vdisk the disk presented to hosts has advantages in fault tolerance cost performance or a combination of these EY NOTE Choosing the right RAID level for your application improves performance The following tables e Provide examples of appro
171. me or convert the master volume to a standard volume To delete snap pools 1 2 A 6 Verify that no master volume or snapshots are associated with the snap pool In the Configuration View panel either e Right click the local system or Vdisks or a vdisk and select Provisioning gt Delete Snap Pools e Right click a snap pool and select Provisioning gt Delete Snap Pool In the main panel select the snap pools to delete Click Delete Snap Pool s Click Delete to continue otherwise click Cancel If you clicked Delete a processing dialog appears If the task succeeds an overview panel and a success dialog appear Click OK As processing completes the deleted items are removed from the Configuration View panel Adding a host To add a host 1 2 3 4 Determine the host s WWPN or IQN In the Configuration View panel right click the system or Hosts and then select Provisioning gt Add Host In the main panel set the options Host ID WWN IQN Enter the host s WWPN or IQN A WWPN value can include a colon between each pair of digits but the colons will be discarded e Host Name Optionally change the default name to one that helps you easily identify the host for example FileServer_1 A host name is case sensitive cannot already exist in the system cannot include a comma double quote or backslash and can have a maximum of 15 bytes Click Add Host If the task succeeds the new host appears in the
172. me volume at one time Additional roll backs are queued until the current roll back is complete However after the roll back is requested the volume is available for use as if the roll back has already completed During a roll back operation using snapshot modified data the snapshot must be unmounted unpresented unmapped and cannot be accessed Unmounting unpresenting unmapping the snapshot ensures that all data cached by the host is written to the snapshot if unmounting unpresenting unmapping is not performed at the host level prior to starting the roll back data may remain in host cache and thus not be rolled back to the master volume As a precaution against inadvertently accessing the snapshot the system also takes the snapshot offline as shown by the Snapshot Overview panel The snapshot becomes inaccessible in order to prevent any data corruption to the master volume The snapshot can be remounted re presented remapped once the roll back is complete To roll back a volume 1 Unmount unpresent unmap the volume from hosts 2 If the roll back will include snapshot modified data unmount unpresent unmap the snapshot from hosts 3 In the Configuration View panel right click a volume and select Provisioning gt Roll Back Volume 4 In the main panel set the options For Volume From Snapshot Volume Enter the name of the snapshot to roll back to e With Modified Data Select this option to include the snapshot s modified da
173. mes unavailable you can continue to manage the storage system from the partner controller RAlDar is also referred to as the web browser interface WBI Configuring and provisioning a new storage system To configure and provision a storage system for the first time 1 Configure your web browser for RAIDar and sign in as described in Browser setup and Signing in below Set the system date and time as described in Changing the system date and time on page 42 Use the Configuration Wizard to configure other system settings as described in Using the Configuration Wizard on page 33 Use the Provisioning Wizard to create a virtual disk vdisk containing storage volumes and optionally to map the volumes to hosts as described in Using the Provisioning Wizard on page 55 Use the Replication Setup Wizard to configure replication for a primary volume to a remote system as described in Using the Replication Setup Wizard on page 110 If you mapped volumes to hosts verify the mappings by mounting presenting the volumes from each host and performing simple read write tests to the volumes Verify that controller modules and expansion modules have the latest firmware as described in Viewing information about the system on page 87 and Updating firmware on page 75 You can then make additional configuration and provisioning changes and view system status as described in later chapters of this guide Browser setup Use Mozilla
174. minutes For better performance if this task will run under heavy I O conditions or on more than three volumes set the retention count and the interval to similar values for example if the retention count is 10 then set the interval to 10 minutes For a volume copy or resetsnapshot schedule set the interval to at least 2 minutes e Fora replication schedule set the interval to at least 30 minutes e Time Constraint Specify a time range within which the task should run e Date Constraint Specify days when the task should run Ensure that this constraint includes the Start Schedule date e End Schedule Specify when the task should stop running 4 Click Modify Schedule 5 Click Yes to continue otherwise click No If you clicked Yes a processing dialog appears When processing is complete a success dialog appears 6 Click OK Deleting schedules If a component has a scheduled task that you no longer want fo occur you can delete the schedule When a component is deleted its schedules are also deleted To delete task schedules 1 In the Configuration View panel right click the system or a volume or a snapshot and select Provisioning gt Delete Schedule 2 In the main panel select the schedule to remove 3 Click Delete Schedule A confirmation dialog appears 4 Click Yes to continue otherwise click No If you clicked Yes a processing dialog appears If the task succeeds the schedules are removed from the table and
175. module 137 using WBI to update controller module 75 using WBI to update disk 77 using WBI to update expansion module 76 versions 88 firmware update partner configuring 48 FTP downloading system logs 135 updating controller module firmware 136 updating disk drive firmware 139 updating expansion module firmware 137 G global spare 19 global spares adding and removing 58 H hardware versions 88 help displaying online 17 using the help window 17 host adding 70 changing mappings 71 changing name 70 properties 97 viewing information about 97 host access to cache configuring 47 host mapping properties 98 host port properties 101 host ports check links in local system 85 check links to remote system 85 configuring 42 configuring with Configuration Wizard 35 resetting 78 154 Index hosts about 20 removing 70 viewing information about all 97 I O module properties 102 icon WEBI communication status 16 icons storage system component 31 icons event severity 88 In port properties 102 iSCSI host security 20 iSCSI IP version configuring 36 43 iSNS configuring 36 43 J jumbo frames configuring 36 43 L leftover disk 79 licensed features managing 37 remote replication 105 snapshot 24 status 88 using FTP to install license file 140 VDS and VSS providers 28 volume copy 26 link rate adjustment 99 link speed configuring FC 35 42 configuring iSCSI 36 43 links check between controllers in local
176. n e If the file is valid the process continues A CAUTION Do not perform a power cycle or controller restart during a firmware update If the update is interrupted or there is a power failure the module might become inoperative If this occurs contact technical support The module might need to be returned to the factory for reprogramming AssuredSAN 3000 Series RAlDar User Guide 75 Firmware update typically takes 10 minutes for a controller having current CPLD firmware or 20 minutes for a controller having downlevel CPLD firmware If the controller enclosure has attached drive enclosures allow additional time for each expansion module s enclosure management processor EMP to be updated This typically takes 3 minutes for each EMP in a drive enclosure If the Storage Controller cannot be updated the update operation is cancelled Verify that you specified the correct firmware file and repeat the update If this problem persists contact technical support When firmware update on the local controller is complete users are automatically signed out and the Management Controller will restart Until the restart is complete the RAIDar Sign In page will say that the system is currently unavailable When this message is cleared you may sign in If PFU is enabled allow 10 20 minutes for the partner controller to be updated Clear your web browser s cache then sign in to RAlDar If PFU is running on the controller you sign in to
177. nd its data until the restart is complete To perform a restart 1 In the Configuration View panel right click the local system and select Tools gt Shut Down or Restart Controller 2 In the main panel set the options Select the Restart operation Select the type of controller processor to restart Select whether to restart the processor in controller A B or both 3 Click Restart now A confirmation dialog appears Click Yes to continue otherwise click No If you clicked Yes a second confirmation dialog appears 5 Click Yes to continue otherwise click No If you clicked Yes a message describes restart activity EY NOTE If an iSCSI port is connected to a Microsoft Windows host the following event is recorded in the Windows event log A connection to the target was lost but Initiator successfully reconnected to the target 80 Using system tools Shutting down Shutting down the Storage Controller in a controller module ensures that a proper failover sequence is used which includes stopping all I O operations and writing any data in write cache to disk If the Storage Controller in both controller modules is shut down hosts cannot access the system s data Perform a shut down before removing a controller module or powering down the system A CAUTION You can continue to use the CLI when either or both Storage Controllers are shut down but information shown might be invalid To perform a shut do
178. ndary system can be the local system or a remote system added by using the Add Remote System panel You can select the local system if you intend to create the replication set on the local system and then physically move the secondary vdisk s disks or enclosure to a remote system Otherwise select a remote system that you ve added to the local system IMPORTANT A best practice is to schedule no more than three volumes to start replicating at the same time and for those replications to recur no less than 60 minutes apart If you schedule more replications to start at the same time or schedule replications to start more frequently some scheduled replications may not have time to complete Before starting this procedure if you intend to use CHAP to authenticate SCSI login requests between the local system and a remote system do the following e Create a one way CHAP record on each system On the local system the CHAP record must refer to the node name of the remote system On the remote system the CHAP record must refer to the node name of the local system Both records must use the same secret Mutual CHAP is not used between storage systems CHAP records mutual fields can be set but are not used To create a CHAP record see Configuring CHAP on page 72 e After the CHAP records are created enable CHAP on the primary system the secondary system or both To enable CHAP see Changing host interface settings on page 42 If both
179. network problems and plan for network growth Data is passed from SNMP agents reporting activity on each network device to the workstation console used to oversee the network The agents return information contained in a Management Information Base MIB which is a data structure that defines what is obtainable from the device and what can be controlled turned on and off etc An SNMP object identifier OID is a number assigned to devices in a network for identification purposes OID numbering is hierarchical Using the IETF notation of digits and dots resembling very long IP addresses various registries such as ANSI assign high level numbers to vendors and organizations They in turn append digits to the number to identify individual devices or software processes 3000 Series storage systems use SNMPv2c which improves on SNMPv1 features and uses its community based security scheme Standard MIB II behavior MIB II is implemented to support basic discovery and status In the system group all objects can be read The contact name and location objects can be set The system object identifier sysObject ID is based on the vendor name followed by 2 and the identifier for the particular product model For example the object identifier for 3000 Series storage systems is 1 3 6 1 4 1 11 2 347 System uptime is an offset from the first time this object is read In the interfaces group an internal PPP interface is documented but it i
180. nfiguring 42 U ULP 22 unique data snapshot 94 units for size representations 30 users about user accounts 17 adding 40 change default passwords with Configuration Wizard 33 maximum that can sign in 16 modifying 41 removing 41 utility priority configuring 49 V vdisk abort verification 82 aborting scrub 83 changing name 51 changing owner 51 configure drive spin down 51 configuring 50 creating 57 creating with the Provisioning Wizard 55 expanding 81 health values 89 90 properties 87 90 reconstruction 31 removing from quarantine 83 scrubbing 82 starting a stopped 117 status values 89 91 stopping 116 verifying redundant 82 viewing information about 90 vdisks write back caching 22 about 18 write through caching 22 configuring background scrub 48 deleting 58 viewing information about all 89 VDS and VSS providers about 28 volume aborting copy 68 aborting replication 115 changing default mapping 62 changing explicit mappings 63 changing name 52 configuring 52 configuring cache settings 52 creating 59 creating a copy 67 expanding 64 preparing replication by using the Replication Setup Wizard 110 properties 87 92 93 97 removing replication from 114 replicating 112 replication addresses 120 121 replication image properties 121 replication images 121 replication properties 120 121 resuming replication 115 rolling back data 68 schedule properties 93 suspending replication 115 viewing infor
181. ng access to read only or read write e Mask the volumes from the host by setting a starting LUN selecting ports and setting access to no access 6 Click Apply A message specifies whether the change succeeded or failed 7 Click OK Changing a volume s default mapping A CAUTION Volume mapping changes take effect immediately Make changes that limit access to volumes when the volumes are not in use Be sure to unmount unpresent map a volume before changing the volume s LUN EY NOTE You cannot map the secondary volume of a replication set EY NOTE When mapping a volume to a host using the Linux ext3 file system specify read write access otherwise the file system will be unable to mount present map the volume and will report an error such as unknown partition table To view the default mapping In the Configuration View panel right click a volume and select Provisioning gt Default Mapping The main panel shows the volume s default mapping e Ports Controller host ports through which the volume is mapped to the host LUN Volume identifier presented to the host e Access Volume access type read write read only not mapped To modify the default mapping 1 Select Map 2 Set the LUN and select the ports and access type Setting the default mapping to no access will result in the LUN mapping being removed 3 Click Apply A message specifies whether the change succeeded or failed 4 Click OK
182. nges and finish the wizard Ef NOTE Ifyou changed a controller s FC loop ID setting you must restart the controller to make the change take effect Installing a license A license is required to expand Snapshot limits and to use Volume Copy Replication VDS and VSS The license is specific to a controller enclosure serial number and firmware version If a permanent license is not installed and you want to try these features before buying a permanent license you can create a temporary license one time A temporary license will expire 60 days from the time it is created After creating a temporary license each time you sign in to RAlDar a message specifies the time remaining in the trial period If you do not install a permanent license before the temporary license expires you cannot create new items with these features however you can continue to use existing items After a temporary license is created or a permanent license is installed the option to create a temporary license is no longer displayed To view information about system licenses In the Configuration View panel right click the system and select Tools gt Install License The System Licenses table shows the following information about licensed features e Feature The name of the licensed feature e Base Either e The number of components that users can create without a license e N A Not applicable e License Either e The number of user created components th
183. ntegrity For example if the storage system was operating outside the normal temperature range you might want to verify its vdisks The Verify utility checks whether the redundancy data in the vdisk is consistent with the user data in the vdisk For RAID 3 5 6 and 50 the utility checks all parity blocks to find data parity mismatches For RAID 1 and 10 the utility compares the primary and secondary disks to find data inconsistencies Verification can last over an hour depending on the size of the vdisk the utility priority and the amount of I O activity When verification is complete the number of inconsistencies found is reported with event code 21 in the event log Such inconsistencies can indicate that a disk in the vdisk is going bad For information about identifying a failing disk use the SMART option see Configuring SMART on page 45 You can use a vdisk while it is being verified If too many utilities are running for verification to start either wait until those utilities have completed and try again or abort a utility to free system resources If you abort verification you cannot resume it you must start it over To verity a vdisk 1 In the Configuration View panel right click a redundant vdisk and select Tools gt Verify Vdisk 2 Click Start Verify Utility A message confirms that verification has started 3 Click OK The panel shows the verification s progress To abort vdisk verification 1 In the Configuration
184. nue while the expansion proceeds You can then create or expand a volume to use the new free space which becomes available when the expansion is complete You can expand only one vdisk at a time The RAID level determines whether the vdisk can be expanded and the maximum number of disks the vdisk can have Y IMPORTANT Expansion can take hours or days to complete depending on the vdisk s RAID level and size disk speed utility priority and other processes running on the storage system You can stop expansion only by deleting the vdisk Before expanding a vdisk Back up the vdisk s data so that if you need to stop expansion and delete the vdisk you can move the data into a new larger vdisk AssuredSAN 3000 Series RAlDar User Guide 81 To expand a vdisk 1 In the Configuration View panel right click a vdisk and select Tools gt Expand Vdisk Information appears about the selected vdisk and all disks in the system e In the Disk Selection Sets table the number of white slots in the vdisk s Disks field shows how many disks you can add to the vdisk e In the enclosure view or list only suitable available disks are selectable 2 Select disks to add 3 Click Expand Vdisk A processing dialog appears 4 Click OK The expansion s progress is shown in the View gt Overview panel Verifying a vdisk If you suspect that a redundant mirror or parity vdisk has a problem you can run the Verify utility to check the vdisk s i
185. o has a SPARE row where you can assign dedicated spares to the vdisk In each row the Disks field shows how many disks you can and have assigned As you select disks the table shows the amount of storage space in the vdisk For descriptions of storage space color codes see About storage space color codes on page 31 The Enclosures Front View table shows all disks in all enclosures The Graphical tab shows disk information graphically the Tabular tab shows disk information in a table Disks you select are highlighted and color coded to match the rows in the Disk Selection Sets table Based on the type of disk you select first SAS or SATA only available disks of that type become selectable you cannot mix SAS and SATA disks in a vdisk To select disks and spares 1 Select disks to populate each vdisk row When you have selected enough disks a checkmark appears in the table s Complete field 2 Optionally select up to four dedicated spares for the vdisk 3 Click Next to continue Step 4 Defining volumes 56 A volume is a logical subdivision of a vdisk and can be mapped to controller host ports for access by hosts A mapped volume provides the storage for a file system partition you create with your operating system or third party tools The storage system presents only volumes not vdisks to hosts You can create multiple volumes with the same base name size and default mapping settings If you choose to define volumes in thi
186. o show which disks are now spares for the vdisk Changing a vdisk s name To change a vdisk s name 1 In the Configuration View panel right click a vdisk and select Configuration gt Modify Vdisk Name The main panel shows the vdisk s name 2 Enter a new name A vdisk name is case sensitive cannot already exist in the system cannot include a comma double quote or backslash and can have a maximum of 20 bytes 3 Click Modify Name The new name appears in the Configuration View panel Changing a vdisk s owner Each vdisk is owned by one of the controllers A or B known as the preferred owner Typically you should not need to change vdisk ownership When a controller fails the partner controller assumes temporary ownership of the failed controller s vdisks and resources becoming the current owner If the system uses a fault tolerant cabling configuration both controllers LUNs are accessible through the partner A CAUTION e Before changing the owning controller for a vdisk you must stop host I O to the vdisk s volumes e Because a volume and its snap pool must be in vdisks owned by the same controller if an ownership change will cause volumes and their snap pools to be owned by different controllers the volumes will not be able to access their snap pools Changing the owner of a vdisk does not affect the mappings volumes in that vdisk To change a vdisk s owner 1 In the Configuration View panel righ
187. of component being monitored by this sensor See External details for connUnitSensorTable on page 130 connUnitSensor Characteristic connUnitPortTable Characteristics being monitored by this sensor See External details for connUnitSensorTable on page 130 Includes the following objects as specified by the FA MIB2 2 Spec connUnitPortUnitId connUnit Port Index 126 SNMP reference connUnit Id of the connectivity unit that contains this port Unique value for each connUnitPortEntry between 1 and connUnitNumPorts Same as connUnitId Unique value for each port between 1 and the number of ports Table 11 connUnitPortType FA MIB 2 2 objects descriptions and values continued Description Port type not present 3 or n port 5 for point to point topology or l port 6 connUnitPortFCClassCap Bit mask that specifies the classes of service capability of this port If this is not applicable returns all bits set to zero Fibre Channel ports return 8 for class three connUnitPortFCClassOp Bit mask that specifies the classes of service that are currently operational If this is not applicable returns all bits set to zero Fibre Channel ports return 8 for class three connUnitPortState State of the port hardware unknown 1 online 2 offline 3 bypassed 4 connUnitPortStatus Overall protocol status for the port unknown 1 unused 2 ok 3 warning 4 f
188. of its disks are down FIDN Fault tolerant with down disks The vdisk is online and fault tolerant but some of its disks are down FTOL Fault tolerant and online e OFFL Offline Either the vdisk is using offline initialization or its disks are down and data may be lost e QICR Quarantined critical The vdisk is offline and quarantined because at least one disk is missing however the vdisk could be accessed For instance one disk is missing from a mirror or RAID 5 e QTDN Quarantined with down disks The vdisk is offline and quarantined because at least one disk is missing however the vdisk could be accessed and would be fault tolerant For instance one disk is missing from a RAID 6 QTOF Quarantined offline The vdisk is offline and quarantined because multiple disks are missing and user data is incomplete e and user data is incomplete e STOP The vdisk is stopped e UNKN Unknown e UP Up The vdisk is online and does not have fault tolerant attributes Current Job If a utility is running on the vdisk this field shows the utility s name and progress Drive Spin Down Vdisk Enable Shows whether drive spin down is enabled or disabled for this vdisk Disk properties When you select the Disks component a Disk Sets table and enclosure view appear The Disk Sets table shows Total Space Total storage space in the vdisk followed by a color coded measure of how the space is used Type For RAID 10 or
189. olume component the Properties for Volume table shows e Vdisk Name Name of the vdisk that the volume is in e Name Volume name e Size Volume size e Preferred Owner Controller that owns the vdisk and its volumes during normal operation e Current Owner Either the preferred owner during normal operation or the partner controller when the preferred owner is offline Serial Number Volume serial number e Cache Write Policy Write back or write through See Using write back or write through caching on page 22 e Cache Optimization Standard or super sequential See Optimizing read ahead caching on page 23 e Read Ahead Size See Optimizing read ahead caching on page 23 e Type Standard volume master volume or snapshot e Progress If the volume is being created by a volume copy operation the percent complete Mapping properties When you select the Maps component the Maps for Volume table shows e Type Explicit or Default Settings for an explicit mapping override the default mapping e Host ID WWPN or IQN e Name Host name e Ports Controller host ports through which the volume is mapped to the host e LUN Volume identifier presented to the host e Access Volume access type read write read only no access masked or notmapped Schedule properties If any schedules exist for this volume when you select the Schedules component the Schedules table shows each schedule s name specification status next run time t
190. olume set In a vdisk that has sufficient free space you can create multiple volumes with the same base name and size Optionally you can specify a default mapping for the volumes otherwise they will be created unmapped To create a volume set 1 In the Configuration View panel right click a vdisk and select Provisioning gt Create Volume Set 2 In the main panel set the options Volume Set Base name Optionally change the base name for the volumes The volume names will consist of the base name and a number that increments from 000 If a name in the series is already in use the next name in the series is assigned For example for a two volume set starting with Volume000 if Volume001 already exists the second volume is named Volume002 A base name is case sensitive cannot already be used by another vdisk cannot include a comma double quote or backslash and can have a maximum of 16 bytes Total Volumes Specify the number of volumes to create Volumes are created up to the maximum number supported per vdisk Size Optionally change the volume size The default size is the total space divided by the number of volumes Map Select this option to specify a default mapping for the volumes e Access Select the access level that hosts will have to the volumes LUN If the access level is set to read write or read only set a LUN for the first volume The next available LUN is assigned to the next volume mapped through the
191. olume table select a host Select Map Set the LUN and select the ports and access type Click Apply A message specifies whether the change succeeded or failed Click OK The mapping becomes Explicit with the new settings To modify an explicit mapping 1 In the Maps for Volume table select the Explicit mapping to change 2 Set the LUN and select the ports and access type 3 4 Click OK The mapping settings are updated Click Apply A message specifies whether the change succeeded or failed To delete an explicit mapping po In the Maps for Volume table select the Explicit mapping to delete Clear Map Click Apply A message specifies whether the change succeeded or failed Click OK The mapping returns to the Default mapping AssuredSAN 3000 Series RAlDar User Guide 63 Unmapping volumes You can delete all of the default and explicit mappings for multiple volumes A CAUTION Volume mapping changes take effect immediately Make changes that limit access to volumes when the volumes are not in use Before changing a volume s LUN be sure to unmount unpresent unmap the volume To unmap volumes 1 2 3 4 In the Configuration View panel right click Vdisks or a vdisk and then select Provisioning gt Unmap Volumes In the main panel select the volumes to unmap To select up to 100 items or clear all selections toggle the checkbox in the heading row Click Unmap Volume s A message s
192. on You can update the firmware in each expansion module by loading a firmware file obtained from the enclosure vendor AssuredSAN 3000 Series RAlDar User Guide 137 You can specify to update all expansion modules or only specific expansion modules If you specify to update all expansion modules and the system contains more than one type of enclosure the update will be attempted on all enclosures in the system The update will only succeed for enclosures whose type matches the file and will fail for enclosures of other types To update expansion module firmware 1 Obtain the appropriate firmware file and download it to your computer or network 2 If you want to update all expansion modules continue with the next step otherwise in RAlDar determine the address of each expansion module to update a In the Configuration View panel select a drive enclosure b In the enclosure properties table note each EMP s bus ID and target ID values For example O and 63 and 1 and 63 Bus O is the bus that is native to a given controller while bus 1 is an alternate path through the partner controller It is recommended to perform update tasks consistently through one controller to avoid confusion 3 In RAIDar prepare to use FTP a Determine the network port IP addresses of the system s controllers b Verify that the system s FTP service is enabled c Verify that the user you will log in as has permission to use the FTP interf
193. ondary system The process to move a secondary volume is 1 In the system where the secondary volume resides a Detach the secondary volume For details see Detaching a secondary volume on page 115 b If the secondary volume s vdisk contains other secondary volumes detach those volumes c Stop the secondary volume s vdisk d If the secondary volumes snap pools are in other vdisks stop those vdisks e Move the vdisks into the secondary system In the secondary system a Start the snap pools vdisks For details see Starting a vdisk on page 117 b Start the secondary volumes vdisks c Reattach the secondary volumes For details see Reattaching a secondary volume on page 117 Before stopping a vdisk ensure that all secondary volumes that it contains are detached When a vdisk is stopped The volumes in the vdisk become inaccessible to hosts lts cached data is flushed to disk Removing its disks will not cause the system to report errors or to attempt reconstruction EY NOTE You cannot stop a vdisk that contains a primary volume 116 Using AssuredRemote to replicate volumes EY NOTE If a secondary volume and its snap pool are in different vdisks you cannot stop the snap pool s vdisk until you stop the secondary volume s vdisk To stop a vdisk 1 2 3 In the Configuration View panel right click the vdisk and select Provisioning gt Stop Vdisk In the main panel click Stop Vdisk A con
194. ons are not competing with each other when accessing the same data blocks 26 Getting started The following figure illustrates how volume copies are created Creating a volume copy from a standard or master volume Source volume Transient snapshot Data transfer New volume La A N oon o Sey a ee H 1 Volume copy request is made with a standard volume or a master volume as the source 2 If the source a standard volume it is converted to a master volume and a snap pool is created 3 A new volume is created for the volume copy and a hidden transient snapshot is created 4 Data is transferred from the transient snapshot to the new volume 5 On completion the transient volume is deleted and the new volume is a completely independent copy of the master volume representing the data that was present when the volume copy was started Creating a volume copy from a snapshot Master volume Snapshot s Data transfer New volume gt EN e wee Ul V 1 A master volume exists with one or more snapshots associated with it Snapshots can be in their original state or they can be modified 2 You can select any snapshot to copy and you can specify that the modified or unmodified data be copied 3 On completion the new volume is a completely independent copy of the snapshot The snapshot remains though you can choose to delete it Figure 3 Creating a volume copy from a master volume or a snapshot Snapsh
195. option to include the snapshot s modified data in the copy Otherwise the copy will contain only the data that existed when the snapshot was created 4 Click Copy the Volume A confirmation dialog appears 5 Click Yes to continue otherwise click No If you clicked Yes and With Modified Data is selected and the snapshot has modified data a second confirmation dialog appears AssuredSAN 3000 Series RAlDar User Guide 67 6 Click Yes to continue otherwise click No If you clicked Yes the volume copy operation starts While the operation is in progress the destination volume is offline and its type is shown as standard If you unmounted unpresented unmapped a snapshot to copy its modified data wait until processing is complete before you remount re present remap it If the task succeeds the destination volume s type becomes standard and the volume appears in the Configuration View panel 7 Optionally map the volume to hosts To schedule a volume copy task In the Configuration View panel right click a volume and select Provisioning gt Create Volume Copy In the main panel select Scheduled ON Set the options e New Volume Prefix Optionally change the default prefix to identify volumes created by this task The prefix is case sensitive cannot include a comma double quote or backslash and can have a maximum of 14 bytes Automatically created volumes are named prefix_cn where n starts at 001 e Residing On
196. ormally A Degraded At least one component is degraded Fault At least one component has a fault N A Health is not available e Health Reason e Enclosure ID e Vendor e Model e Disk Slots e Enclosure WWN e Mid plane Serial Number Part Number e Manufacturing Date e Manufacturing Location e Revision e EMP A Revision Firmware revision of the Enclosure Management Processor in controller module A s Expander Controller EMP B Revision Firmware revision of the Enclosure Management Processor in controller module B s Expander Controller e EMP A Bus ID e EMP B Bus ID e EMP A Target ID EMP B Target ID Viewing system status Enclosure Power watts PCle 2 Capable Shows whether the enclosure is capable of using PCI Express version 2 Disk properties When you select a disk a table shows Health OK The disk is operating normally Degraded The disk s operation is degraded If you find no related event in the event log this may indicate a hardware problem Fault The disk has failed N A Health is not available Health Reason Enclosure ID Slot How Used e AVAIL Available e FAILED The disk is unusable and must be replaced Reasons for this status include excessive media errors SMART error disk hardware failure unsupported disk e GLOBAL SP Global spare e LEFTOVR Leftover e VDISK Used in a vdisk e DISK SP Spare assigned to a vdisk Status e Up T
197. ot is subject to the snap pool s deletion policies If the snap pool reaches its critical threshold the snapshot may be deleted even if it is mapped If you want to preserve the standard snapshot s data you can create a standard volume from the snapshot see Creating a volume copy on page 67 Ef NOTE The export task will not succeed if the resulting snapshot would exceed license limits To export a replication image to a snapshot 1 In the Configuration View panel right click a replication image and select Provisioning gt Export Snapshot 2 In the main panel optionally change the default name for the snapshot A snapshot name is case sensitive cannot already exist in a vdisk cannot include a comma double quote or backslash and can have a maximum of 20 bytes 3 Click Export Snapshot A message specifies whether the task succeeded or failed 4 Click OK If the task succeeds in the Configuration View panel the snapshot appears under the secondary volume on the remote system Changing the primary volume for a replication set If a replication set s primary system goes offline you can set the secondary volume to be the primary volume so hosts can access that volume and the replicated data it contains Scheduled replications can continue on the remote system while the primary system remains offline When the secondary volume becomes the primary volume it only retains the replication images that the primary volume had and de
198. ot operations are O intensive Every write to a unique location in a master volume after a snapshot is taken will cause an internal read and write operation to occur in order to preserve the snapshot data If you intend to create snapshots of create volume copies of or replicate volumes in a vdisk ensure that the vdisk contains no more than four master volumes snap pools or both For example 2 master volumes and 2 snap pools 3 master volumes and 1 snap pool 4 master volumes and O snap pools Guidelines to keep in mind when performing a volume copy include e The destination vdisk must be owned by the same controller as the source volume e The destination vdisk must have free space that is at least as large as the amount of space allocated to the original volume A new volume will be created using this free space for the volume copy e The destination vdisk does not need to have the same attributes such as disk type RAID level as the volume being copied e Once the copy is complete the new volume will no longer have any ties to the original Volume Copy makes a copy from a snapshot of the source volume therefore the snap pool for the source volume must have sufficient space to store snapshot data when performing this copy AssuredSAN 3000 Series RAlDar User Guide 27 Related topics e Installing a license on page 37 e Creating a volume copy on page 67 e Aborting a volume copy on page 68 e Viewing information about a volu
199. pecifies whether the change succeeded or failed Click OK Default and explicit mappings are deleted and the volumes access type changes to not mapped Expanding a volume You can expand a standard volume if its vdisk has free space and sufficient resources Because volume expansion does not require I O to be stopped the volume can continue to be used during expansion NOTE This command is not supported for master volumes To expand a volume 1 2 3 In the Configuration View panel right click a standard volume and select Tools gt Expand Volume In the main panel specify the amount of free space to add to the volume Click Expand Volume If the specified value exceeds the amount of free space in the vdisk a dialog lets you expand the volume to the limit of free space in the vdisk If the task succeeds the volume s size is updated in the Configuration View panel Creating multiple snapshots If the system is licensed to use Snapshots you can select multiple volumes and immediately create a snapshot of each volume 64 Ef NOTE The first time a snapshot is created of a standard volume the volume is converted to a master volume and a snap pool is created in the volume s vdisk The snap pool s size is either 20 of the volume size or the minimum snap pool size whichever is larger Before creating or scheduling snapshots verify that the vdisk has enough free space to contain the snap pool To create multipl
200. pin down for a vdisk on page 51 AssuredSAN 3000 Series RAlDar User Guide 45 DSD affects disk operations as follows Spun down disks are not polled for SMART events e Operations requiring access to disks may be delayed while the disks are spinning back up To configure DSD for available disks and global spares 1 In the Configuration View panel right click the local system and select Configuration gt Advanced Settings gt Disk 2 Set the options e Either select enable or clear disable the Available and Spare Drive Spin Down Capability option If you are enabling DSD a warning prompt appears to use DSD click Yes to leave DSD disabled click No Set the Drive Spin Down Delay minutes which is the period of inactivity after which available disks and global spares automatically spin down from 1 360 minutes If DSD is enabled and no delay value is set the default is 15 minutes The value O disables DSD 3 Click Apply When processing is complete a success dialog appears 4 Click OK Scheduling drive spin down for all disks For all disks that are configured to use drive spin down DSD you can configure a time period to suspend and resume DSD so that disks remain spun up during hours of frequent activity To configure DSD for a vdisk see Configuring drive spin down for a vdisk on page 51 To configure DSD for available disks and global spares see Configuring drive spin down for available disks and global spares
201. plication volume and select Resume Replication 2 In the main panel click Resume Replication A message indicates whether the task succeeded or failed Aborting replication If the system is licensed to use remote replication you can abort the current replication operation for the selected replication volume The current replication may be running or suspended You must perform this task on the system that owns the secondary volume To abort replication 1 In the Configuration View panel right click a local replication volume and select Provisioning gt Abort Replication 2 In the main panel click Abort Replication A message indicates whether the task succeeded or failed Detaching a secondary volume When using the replication feature if you chose to create a replication set s primary and secondary volumes in the primary system you can perform the initial replication and then physically move the secondary volume s vdisk into the secondary system The process to move a secondary volume is 1 In the system where the secondary volume resides a Detach the secondary volume b If the secondary volume s vdisk contains other secondary volumes detach those volumes AssuredSAN 3000 Series RAlDar User Guide 115 c Stop the secondary volume s vdisk For details see Stopping a vdisk on page 116 d If the secondary volumes snap pools are in other vdisks stop those vdisks e Move the vdisks into the secondary system In the s
202. pping and masking Fibre Channel interface protocol A disk that is reserved for use by any redundant vdisk to replace a failed disk See compatible disk An external port that the storage system is attached to The external port may be a port in an I O adapter in a server or a port in a network switch A globally unique serial number that identifies the point in time image source for a volume All volumes that have identical image IDs have identical data content whether they be snapshots or stand alone volumes iSCSI Qualified Name Internet SCSI interface protocol Internet Storage Name Service In an iSCSI network a frame that can contain 9000 bytes for large data transfers A normal frame can contain 1500 bytes The state of a disk that has been automatically excluded from a vdisk and is no longer needed by the vdisk after the vdisk is reconstructed Fibre Channel Arbitrated Loop FC AL topology Volume mapping settings that specify no access to that volume by hosts See also default mapping and explicit mapping A volume that is enabled for snapshots and has an associated snap pool AssuredSAN 3000 Series RAlDar User Guide 149 MC metadata network port point to point primary volume proxy volume remote replication replication image replication set replication snapshot replication sync point SAS SATA sc secondary volume 150 Glossary Management Controller The processor located in
203. priate RAID levels for different applications e Compare the features of different RAID levels e Describe the expansion capability for different RAID levels Table 4 Example applications and RAID levels Application RAID level Testing multiple operating systems or software development where redundancy is not an issue NRAID Fast temporary storage or scratch disks for graphics page layout and image rendering Workgroup servers Video editing and production Network operating system databases high availability applications workgroup servers Very large databases web server video on demand Mission critical environments that demand high availability and use large sequential workloads 28 Getting started Table 5 RAID level comparison Description Non RAID nonstriped mapping to a single disk Strengths Ability to use a single disk to store additional data Weaknesses Not protected lower performance not striped Data striping without redundancy Highest performance No data protection if one disk fails all data is lost Disk mirroring Very high performance and data protection minimal penalty on write performance protects against single disk failure High redundancy cost overhead because all data is duplicated twice the storage capacity is required Blocklevel data striping with dedicated parity disk Excellent performance for large sequential data requests fast read pro
204. pshot is on the local system when you select the Secondary Volume Snapshot component a table shows the Name and serial number of the vdisk containing the snapshot Snapshot name creation date time status and status reason Primary volume name Snap pool name Amounts of total unique and shared data associated with the snapshot Default and user specified retention priorities for this type of snapshot Snapshot type If the snapshot is on a remote system when you select the Secondary Volume Snapshot component a table shows the snapshot serial number and creation date time 122 Using AssuredRemote to replicate volumes A SNMP reference This appendix describes the Simple Network Management Protocol SNMP capabilities that 3000 Series storage systems support This includes standard MIB 1l the FibreAlliance SNMP Management Information Base MIB version 2 2 objects and enterprise traps 3000 Series storage systems can report their status through SNMP SNMP provides basic discovery using MIB Il more detailed status with the FA MIB 2 2 and asynchronous notification using enterprise traps SNMP is a widely used network monitoring and control protocol It is an application layer protocol that facilitates the exchange of management information between network devices It is part of the Transmission Control Protocol Internet Protocol TCP IP protocol suite SNMP enables network administrators to manage network performance find and solve
205. pshot properties 122 replication status properties 122 secondary snapshot properties 122 viewing information about 121 replication set changing the primary volume 118 detaching a secondary volume 115 reattaching a secondary volume 117 Replication Setup Wizard using to set up replication for a volume or snapshot TIQ replication snapshot size 106 replication volume viewing information about a remote primary or secondary 121 rescan disk channels 79 restarting controllers 80 restore the system s default configuration settings 79 revert volume data See roll back volume data roll back volume data about 25 5 schedule deleting 73 modifying 72 properties 88 95 scheduling snapshot 65 snapshot reset 66 volume copy 67 scrub configuring background disk 49 configuring background vdisk 48 SCSI MODE SELECT command configuring handling of 47 SCSI SYNCHRONIZE CACHE command configuring handling of 47 secondary volume detaching 115 reattaching 117 selective storage presentation See volume mapping shared data snapshot 94 shutting down controllers 80 sign out auto setting user 40 41 viewing remaining time 16 signing in to the WBI 15 signing out of the WBI 16 single controller system data protection tips 32 AssuredSAN 3000 Series RAIDar User Guide 155 size representations about 30 replication snapshot 106 SMART configuring 45 snap data 94 snap pool about 24 creating 69 expanding 84 properties 87 92 96 thresholds and po
206. r in practice all storage vendors provide the CIMOM and a single provider together and they do not co exist well with solutions from other vendors These components may be provided in several different ways e Embedded agent The hardware device has an embedded SMI S agent No other installation of software is required to enable management of the device SMI solution The hardware or software ships with an agent that is installed on a host The agent needs to connect to the device and obtain unique identifying information About the 3000 Series SMI S provider The 3000 Series SMI S provider is a full fledged embedded provider implemented in the firmware It provides an industry standard WBEM based management framework SMI S clients can interact with this embedded provider directly and do not need an intermediate proxy provider EY NOTE Active management features such as RAID provisioning are not supported in this release The embedded CIMOM listens to SMI S queries from the clients only on port 5989 and requires that the credentials be provided for all queries This provider implementation complies with the SNIA SMI S specification version 1 3 0 The namespace details are given below e Implementation Namespace root hpq e Interop Namespace root interop The embedded provider set includes the following providers e Instance Provider e Association Provider Method Provider e Indication Provider The embedded prov
207. r 51 D date and time about 30 configuring 42 debug data saving to a file 78 debug logs downloading 135 dedicated spare 19 dedicated spares adding and removing 50 default mapping 21 DHCP configuring 44 configuring with Configuration Wizard 33 disk properties 87 state how used values 92 disk channels rescanning 79 disk metadata clearing 79 disk properties 91 99 disk settings configuring 45 disks configure SMART 45 configure spin down for available and global spare 45 configuring background scrub 49 schedule spin down for all 46 show data transfer rate 99 using FTP to update firmware 139 using WBI to update firmware 77 document conventions 14 prerequisite knowledge 13 related documentation 13 drive spin down configure for a vdisk 51 configure for available and global spare disks 45 schedule for all disks 46 dynamic spare 19 dynamic spares configuring 45 E EMP polling rate configuring 46 enclosure properties 87 viewing information about 98 enclosure properties 98 AssuredSAN 3000 Series RAIDar User Guide 153 event log viewing 88 event notification configuring email settings 39 configuring SNMP settings 39 configuring with Configuration Wizard 35 sending a test message 81 event severity icons 88 expansion module properties 102 expansion port properties 101 explicit mapping 21 F firmware using FTP to update controller module 136 using FTP to update disk drive 139 using FTP to update expansion
208. r and name and image creation date time Viewing information about a replication image In the Configuration View panel right click a replication image and select View gt Overview The Replication Image Overview table shows e Replication status properties e Primary volume snapshot properties e Secondary volume snapshot properties Select a component to see more information about it AssuredSAN 3000 Series RAlDar User Guide 121 Replication status properties When you select the Status component a table shows the status progress start date time date time of last update date time the replication was suspended estimated completion time elapsed or total replication time including any suspension time The panel also shows the replication image s serial number Primary volume snapshot properties If the snapshot is on the local system when you select the Primary Volume Snapshot component a table shows the Name and serial number of the vdisk containing the snapshot Snapshot name creation date time status and status reason Primary volume name Snap pool name Amounts of total unique and shared data associated with the snapshot Default and user specified retention priorities for this type of snapshot Snapshot type If the snapshot is on a remote system when you select the Primary Volume Snapshot component a table shows the snapshot serial number and creation date time Secondary volume snapshot properties If the sna
209. r data in a replication set and that is not accessible to hosts For disaster recovery purposes if the primary volume goes offline a secondary volume can be designated as the primary volume The secondary volume exists in a secondary vdisk in a secondary system e Replication snapshot A special type of snapshot that preserves the state of data of a replication set s primary volume as it existed when the snapshot was created For a primary volume the replication process creates a replication snapshot on both the primary system and when the replication of primary volume data to the secondary volume is complete on the secondary system Replication snapshots are unmappable and are not counted toward a license limit although they are counted toward the system s maximum number of volumes A replication snapshot can be exported to a regular licensed snapshot e Replication image A conceptual term for replication snapshots that have the same image ID in primary and secondary systems These synchronized snapshots contain identical data and can be used for disaster recovery Replication process overview As a simplified overview of the remote replication process it can be configured to provide a single point in time replication of volume data or a periodic delta update replication of volume data The periodic update process has multiple steps At each step matching snapshots are created in the primary system a replication snapshot is created of
210. r mirror is missing To remove a vdisk from quarantine 1 In the Configuration View panel right click a quarantined vdisk and select Tools gt Dequarantine Vdisk 2 Click Dequarantine Vdisk Depending on the number of disks that remain active in the vdisk its health might change to Degraded RAID 6 only and its status changes to FTOL CRIT or FTDN For status descriptions see Vdisk properties on page 90 Expanding a snap pool By default snap pools are configured to automatically expand when they become 90 full However if a snap pool s policy is not set to Auto Expand and the snap pool is running out of free space you can manually expand the snap pool For expansion to succeed the vdisk must have free space and sufficient resources Because expansion does not require I O to be stopped the snap pool can continue to be used during expansion To expand a snap pool 1 In the Configuration View panel right click a volume and select Tools gt Expand Snap Pool 2 In the main panel specify the amount of free space to add to the snap pool 3 Click Expand Snap Pool If the task succeeds the snap pool s size is updated in the Configuration View panel 84 Using system tools Checking links to a remote system After a remote system has been added you can check the connectivity between host ports in the local system and the remote system A host port in the local system can only link to other host ports with the same host int
211. reconstruct one disk in the vdisk referred to as fail 2 fix 1 mode If the spare fails during reconstruction reconstruction stops e If two disks fail and two compatible spares are available the system uses both spares to reconstruct the vdisk If one of the spares fails during reconstruction reconstruction proceeds in fail 2 fix 1 mode If the second spare fails during reconstruction reconstruction stops e If a disk fails during online initialization the initialization fails In order to generate the two sets of parity that RAID 6 requires the controller fails a second disk in the vdisk which changes the vdisk status to critical and then assigns that disk as a spare for the vdisk If a second spare is not available within five minutes reconstruction proceeds in fail 2 fix 1 mode When a disk fails its fault LED illuminates amber When a spare is used as a reconstruction target its activity LED illuminates green EY NOTE Reconstruction can take hours or days to complete depending on the vdisk RAID level and size disk speed utility priority and other processes running on the storage system You can stop reconstruction only by deleting the vdisk About data protection in a single controller storage system 32 A 3000 Series storage system can be purchased or operated with a single controller Because single controller mode is not a redundant configuration this section presents some considerations conce
212. records don t exist or don t use the same secret replication set creation will fail NOTE If replication requests are sent to a secondary system whose temporary replication license has expired the requests are queued but are not processed and the secondary system reports event 472 If this condition occurs check for this event in the event log event notification emails and SNMP traps To continue using replication purchase a permanent replication license 112 Using AssuredRemote to replicate volumes To create a replication set and optionally start or schedule replication 1 2 In the Configuration View panel right click a volume and select Provisioning gt Replicate Volume In the main panel set the destination options Secondary System Select a storage system to replicate the volume to Secondary Volume Select an existing vdisk or an existing replication prepared volume to be the secondary volume Vdisks listed for selection have enough space for the replicated volume and do not contain a volume with a conflicting name rprimary volume name or a snap pool with a conflicting name sprprimary volume name Select the link type used between the two systems If you want to start replication now a b c Select the Initiate Replication and Now options Optionally change the default replication image name A name is case sensitive cannot already exist in a vdisk cannot include a comma double quote
213. rently in progress or queued may continue but their progress may not be reported correctly replications requested after the links fail will not start replicating If the controller that owns the secondary volume loses all links to both controllers of the primary system then the replications will suspend and progress will be updated appropriately links from the partner controller of the controller that owns the secondary volumes are not considered for use Replications that enter the suspended state must be resumed manually Performing initial replication locally or remotely When you set up replication for a volume you specify to use a secondary volume in a vdisk in either the local primary system or a remote secondary system e If the speed of the initial replication is most important specify a vdisk that is owned by the same controller as the primary volume s vdisk in the local system After replication is set up you can perform the initial replication and then physically move the vdisk containing the secondary volume and its snap pool into a remote system Moving a vdisk involves using RAIDar to detach the secondary volume and stop its vdisk removing the vdisk s disks or enclosure transporting the disks or enclosure to the remote location inserting the disks or enclosure into the remote system and using RAlDar to restart the vdisk and reattach the secondary volume If the secondary volume s snap pool is in a different vdisk then t
214. resh buttons RAIDar has a single page whose content changes as you perform tasks and automatically updates to show current data A red asterisk identifies a required setting The icon in the upper right corner of the main window shows the status of communication between RAIDar the Management Controller MC and the Storage Controller SC as described in the following table Table 2 RAIDar communication status icons Meaning RAIDar can communicate with the Management Controller which can communicate with the Storage Controller RAlDar cannot communicate with the Management Controller RAIDar can communicate with the Management Controller which cannot communicate with the Storage Controller Below the communication status icon a timer shows how long the session can be idle until you are automatically signed out This timer resets after each action you perform One minute before automatic sign out you are prompted to continue using RAIDar If a RAIDar session is active on a controller and the controller is power cycled or is forced offline by the partner controller or certain other events occur the session might hang RAIDar might say that it is Connecting but stop responding or the page may become blank with the browser status Done After the controller comes back online the session will not restart To continue using RAlDar close and reopen the browser and start a new RAlDar session Colors t
215. ring network ports You can configure addressing parameters for each controller s network port You can set static IP values or use DHCP In DHCP mode network port IP address subnet mask and gateway values are obtained from a DHCP server if one is available If a DHCP server is unavailable current addressing is unchanged You must have some means of determining what addresses have been assigned such as the list of bindings on the DHCP server Each controller has the following factory default IP settings DHCP disabled e Controller A IP address 10 0 0 2 e Controller B IP address 10 0 0 3 IP subnet mask 255 255 255 0 e Gateway IP address 10 0 0 1 When DHCP is enabled the following initial values are set and remain set until the system is able to contact a DHCP server for new addresses e Controller IP addresses 169 254 x x where the value of x x is the lowest 16 bits of the controller serial number e IP subnet mask 255 255 0 0 e Gateway IP address 0 0 0 0 AssuredSAN 3000 Series RAlDar User Guide 33 169 254 x x addresses including gateway 169 254 0 1 are on a private subnet that is reserved for unconfigured systems and the addresses are not routable This prevents the DHCP server from reassigning the addresses and possibly causing a conflict where two controllers have the same IP address As soon as possible change these IP values to proper values for your network A CAUTION Changing IP settings can cau
216. rning data protection A volume s default caching mode is write back as opposed to write through In write back mode data is held in controller cache until it is written to disk In write through mode data is written directly to disk If the controller fails while in write back mode unwritten cache data likely exists The same is true if the controller enclosure or the target volume s enclosure is powered off without a proper shut down Data remains in the controller s cache and associated volumes will be missing that data This can result in data loss or in some cases volume loss for example if using snapshot functionality a snap pool might become inaccessible and the master volume could go offline If the controller can be brought back online long enough to perform a proper shut down the controller should be able to write its cache to disk without causing data loss To avoid the possibility of data loss in case the controller fails you can change a volume s caching mode to write through While this will cause significant performance degradation this configuration guards against data loss While write back mode is much faster this mode is not guaranteed against data loss in the case of a controller failure If data protection is more important use write through caching if performance is more important use write back caching For details about caching modes see About volume cache options on page 22 To change a volume s caching mode
217. s gt Add User In the main panel set the options ES User Name A user name is case sensitive cannot already exist in the system cannot include a comma double quote or backslash and can have a maximum of 29 bytes NOTE The user name admin is reserved for internal use Password A password is case sensitive cannot include a comma double quote or backslash and can have a maximum of 32 bytes User Roles Select Monitor to let the user view system settings or Manage to let the user view and change system settings You cannot change the roles of user manage User Type Select Standard to allow access to standard functions or Advanced to allow access to all functions except diagnostic functions or Diagnostic to allow access to all functions NOTE This release has no functions that require Advanced or Diagnostic access a Standard user can access all functions WBI Access Allows access to the web based management interface CLI Access Allows access to the command line management interface FTP Access Allows access to the file transfer protocol interface which provides a way to install firmware updates and download logs Base Preference Select the base for entry and display of storage space sizes In base 2 sizes are shown as powers of 2 using 1024 as a divisor for each magnitude In base 10 sizes are shown as powers of 10 using 1000 as a divisor for each magnitude Operating systems usually show volume
218. s RAID level All disks in a vdisk must be the same type SAS or SATA small or large form factor A maximum of 16 vdisks per controller can exist A vdisk can contain different models of disks and disks with different capacities For example a vdisk can include a 500 GB disk and a 750 GB disk If you mix disks with different capacities the smallest disk determines the logical capacity of all other disks in the vdisk regardless of RAID level For example if a RAID 0 vdisk contains one 500 GB disk and four 750 GB disks the capacity of the vdisk is equivalent to approximately five 500 GB disks Each disk has metadata that identifies whether the disk is a member of a vdisk and identifies other members of that vdisk This enables disks to be moved to different slots in a system an entire vdisk to be moved to a different system and a vdisk to be quarantined if disks are detected missing In a single controller system all vdisks are owned by that controller In a dual controller system when a vdisk is created the system automatically assigns the owner to balance the number of vdisks each controller owns or you can select the owner Typically it does not matter which controller owns a vdisk In a dual controller system when a controller fails the partner controller assumes temporary ownership of the failed controller s vdisks and resources If a fault tolerant cabling configuration is used to connect the controllers to drive enclosures and hos
219. s and possibly causing a conflict where two controllers have the same IP address As soon as possible change these IP values to proper values for your network A CAUTION Changing IP settings can cause management hosts to lose access to the storage system To use DHCP to obtain IP values for network ports 1 In the Configuration View panel right click the system and select Configuration gt System Settings gt Network Interfaces 2 Set the IP address source to DHCP 3 Click Apply If the controllers successfully obtain IP values from the DHCP server the new IP values are displayed 4 Record the new addresses 5 Sign out and try to access RAlDar using the new IP addresses To set static IP values for network ports 1 Determine the IP address subnet mask and gateway values to use for each controller 2 In the Configuration View panel right click the system and select Configuration gt System Settings gt Network Interfaces Set the IP address source to manual Set the options for each controller You must set a unique IP address for each network port Record the IP values you assign Click Apply Sign out and try to access RAIDar using the new IP addresses Noo hh 0 44 Configuring the system Setting system information To set system information 1 2 3 In the Configuration View panel right click the system and select Configuration gt System Settings gt System Information In the
220. s and setup tasks Getting Started Regulatory compliance and safety and disposal information Installing and using optional host based software components CAPI Proxy MPIO DSM VDS Provider VSS Provider SES Driver AssuredSAN Product Regulatory Compliance and Safety AssuredSAN Installing Optional Software for Microsoft Windows Server Recommendations for using optional data protection features AssuredSnap AssuredCopy AssuredRemote AssuredSAN 3000 Series Using Data Protection Software Using a rackmount bracket kit to install an enclosure into a rack AssuredSAN Rackmount Bracket Kit Installation or AssuredSAN 2 Post Rackmount Bracket Kit Installation Product hardware setup and related troubleshooting AssuredSAN 3000 Series Setup Guide Obtaining and installing a license to use licensed features AssuredSAN 3000 Series Obtaining and Installing a License Certificate File Using the web interface to configure and manage the product AssuredSAN 3000 Series RAlDar User Guide Using the command line interface CLI to configure and manage the product AssuredSAN 3000 Series CLI Reference Guide Event codes and recommended actions Identifying and installing or replacing field replaceable units FRUs Printed document included in product shipkit AssuredSAN Event Descriptions Reference Guide AssuredSAN 3000 Series FRU Installation and Replacement Guide For additional in
221. s generated to alert the administrator The default value is 75 e Error The snap pool is nearly full and unless corrective action is taken snapshot data loss is probable When this threshold is reached an event is generated to alert the administrator and the associated snap pool policy is triggered The default is 90 e Critical The snap pool is 98 full and data loss is imminent When this threshold is reached an event is generated to alert the administrator and the associated snap pool policy is triggered The following policies are defined e Auto Expand Automatically expand the snap pool by the indicated expansion size value This is the default policy for the Error threshold If the snap pool s space usage reaches the percentage specified by its error threshold the system will log Warning event 230 and will try to automatically expand the snap pool by the snap pool s expansion size value If the snap pool cannot be expanded because there is not enough available space in its vdisk the system will log Warning event 444 and will automatically delete the oldest snapshot that is not a current sync point e Delete Oldest Snapshot Delete the oldest snapshot e Delete Snapshots Delete all snapshots This is the default policy for the Critical threshold e Halt Writes Halt writes to all master volumes and snapshots associated with the snap pool Notify Only Generates an event to notify the administrator This is the only policy for
222. s not reachable from external to the device The address translation at and external gateway protocol egp groups are not supported Enterprise traps Traps can be generated in response to events occurring in the storage system These events can be selected by severity and by individual event type A maximum of three SNMP trap destinations can be configured by IP address Enterprise event severities are informational minor major and critical There is a different trap type for each of these severities The trap format is represented by the enterprise traps MIB dhtraps mib Information included is the event ID the event code type and a text description generated from the internal event Equivalent information can also be sent using email or popup alerts to users who are logged in to RAlDar The text of the trap MIB is included at the end of this appendix FA MIB 2 2 SNMP behavior The FA MIB 2 2 objects are in compliance with the FibreAlliance MIB v2 2 Specification FA MIB2 2 Spec For a full description of this MIB go to www emc com microsites fibrealliance AssuredSAN 3000 Series RAlDar User Guide 123 FA MIB 2 2 was never formally adopted as a standard but it is widely implemented and contains many elements useful for storage products This MIB generally does not reference and integrate with other standard SNMP information it is implemented under the experimental subtree Significant status within the device includes such
223. s step you will define their mapping settings in the next step To define volumes 1 Set the options e Specify the number of volumes to create If you do not want to create volumes enter 0 After changing the value press Tab e Optionally change the volume size The default size is the total space divided by the number of volumes Optionally change the base name for the volumes A volume name is case sensitive cannot already exist in a vdisk cannot include a comma double quote or backslash and can have a maximum of 20 bytes 2 Click Next to continue Provisioning the system Step 5 Setting the default mapping Specify default mapping settings to control whether and how hosts will be able to access the vdisk s volumes These settings include e A logical unit number LUN used to identify a mapped volume to hosts Both controllers share one set of LUNs Each LUN can be assigned as the default LUN for only one volume in the storage system for example if LUN 5 is the default for Volume1 LUN5 cannot be the default LUN for any other volume e The level of access read write read only or no access that hosts will have to each volume When a mapping specifies no access the volume is masked e Controller host ports through which hosts will be able to access each volume To maximize performance it is recommended to map a volume to at least one host port on the controller that the volume s vdisk is assigned to To
224. s that have the same image ID in primary and secondary systems These synchronized snapshots contain identical data and can be used for disaster recovery Associated primary and secondary volumes that are enabled for replication and that typically reside in two physically or geographically separate storage systems See primary volume and secondary volume A special type of snapshot created by the remote replication feature that preserves the state of data of a replication set s primary volume as it existed when the snapshot was created For a primary volume the replication process creates a replication snapshot on both the primary system and when the replication of primary volume data to the secondary volume is complete on the secondary system Replication snapshots are unmappable and are not counted toward a license limit although they are counted toward the system s maximum number of volumes A replication snapshot can be exported to a regular licensed snapshot See also replication sync point The state of a replication snapshot whose corresponding primary or secondary snapshot exists and contains identical data For a replication set four types of sync point are identified the only replication snapshot that is copy complete on any secondary system is the only sync point the latest replication snapshot that is copy complete on any secondary system is the current sync point the latest replication snapshot that is copy comp
225. se management hosts to lose access to the storage system To use DHCP to obtain IP values for network ports 1 Set IP address source to DHCP 2 Click Next to continue To set static IP values for network ports 1 Determine the IP address subnet mask and gateway values to use for each controller 2 Set IP address source to manual 3 Set the values for each controller You must set a unique IP address for each network port 4 Click Next to continue Step 4 Enabling system management services You can enable or disable management interface services to limit the ways in which users and host based management applications can access the storage system Network management interfaces operate out of band and do not affect host I O to the system The network options are e Web Browser Interface WBI The primary interface for managing the system You can enable use of HTTP of HTTPS for increased security or both Command Line Interface CLI An advanced user interface for managing the system You can enable use of Telnet of SSH secure shell for increased security or both Storage Management Initiative Spec SMIS Used for remote management of the system through your network The Storage Management Initiative Specification SMI S is a Storage Networking Industry Association SNIA standard that enables interoperable management for storage networks and storage devices SMLS replaces multiple disparate managed object mod
226. se of the primary event For example an over temperature event could cause a disk failure View the event log and locate other critical error warning events in the sequence for the controller that reported the event Repeat this step for the other controller if necessary Review the events that occurred before and after the primary event During this review you are looking for any events that might indicate the cause of the critical error warning event You are also looking for events that resulted from the critical error warning event known as secondary events Review the events following the primary and secondary events You are looking for any actions that might have already been taken to resolve the problems reported by the events Viewing information about all vdisks In the Configuration View panel right click Vdisks and select View gt Overview The Vdisks Overview table shows the overall health quantity capacity and space usage of existing vdisks For descriptions of storage space color codes see About storage space color codes on page 31 For each vdisk the Vdisks table shows the following details Health OK The vdisk is online with all disks working Degraded The vdisk is being reconstructed as shown by its Current Job property or a RAID 6 vdisk has degraded performance due to one missing disk but remains fault tolerant You can use a degraded RAID 6 vdisk but resolve the problem as soon as possible
227. see Changing a volume s cache settings on page 52 Getting started 2 Configuring the system Using the Configuration Wizard The Configuration Wizard helps you initially configure the system or change system configuration settings The wizard guides you through the following steps For each step you can view help by clicking the help icon E in the wizard panel As you complete steps they are highlighted at the bottom of the panel If you cancel the wizard at any point no changes are made Change passwords for the default users e Configure each controller s network port e Enable or disable system management services Enter information to identify the system e Configure event notification e Configure controller host ports Confirm changes and apply them When you complete this wizard you are given the option to start the Provisioning Wizard to provision storage Step 1 Starting the wizard 1 In the Configuration View panel right click the system and select either Configuration gt Configuration Wizard or Wizards gt Configuration Wizard The wizard panel appears 2 Click Next to continue Step 2 Changing default passwords The system provides the default users manage and monitor To secure the storage system set a new password for each default user A password is case sensitive cannot include a comma double quote or backslash and can have a maximum of 32 bytes Click Next to continue Step 3 Configu
228. see the Event Descriptions Reference Guide Using system tools To scrub a vdisk 1 In the Configuration View panel right click a vdisk and select Tools gt Media Scrub Vdisk 2 Click Start Media Scrub Utility A message confirms that the scrub has started 3 Click OK The panel shows the scrub s progress To abort a vdisk scrub 1 In the Configuration View panel right click a vdisk and select Tools gt Media Scrub Vdisk EY NOTE If the vdisk is being scrubbed but the Abort Media Scrub Utility button is grayed out a background scrub is in progress To stop the background scrub disable the Vdisk Scrub option as described in Configuring background scrub for vdisks on page 48 2 Click Abort Media Scrub Utility A message confirms that the scrub has been aborted 3 Click OK Removing a vdisk from quarantine A vdisk having a fault tolerant RAID level becomes quarantined if at least one of its disks is detected as missing after the storage system is powered up or while it is operating Quarantine does not occur for NRAID or RAID O vdisks if known failed disks are missing or if disks are missing after failover or recovery Quarantine isolates the vdisk from host access and prevents the system from changing the vdisk status to OFFL offline The number of missing disks determines the quarantine status from least to most severe e QITDN Quarantined with down disks At least one disk is missing however the vdisk could b
229. share data with any other snapshot For a snapshot that is not the oldest if the modified data is deleted or if it had never been written to this value is zero bytes Schedule properties When you select the Schedules component a table shows each schedule s name specification status next run time task type task status and task state For the selected schedule three tables appear The first table shows schedule details and the second table shows task details For a task of type TakeSnapshot the third table shows the name and serial number of each snapshot that the task has taken and is retaining Configuration limits When you select the Configuration Limits component a table shows the maximum quantities of vdisks volumes LUNs disks and host ports that the system supports Licensed features When you select the Licensed Features component a table shows the status of licensed features Version properties When you select the Versions component a table shows the versions of firmware and hardware in the system Viewing the system event log 88 In the Configuration View panel right click the system and select View gt Event Log The System Events panel shows the 100 most recent events that have been logged by either controller All events are logged regardless of event notification settings Click the buttons above the table to view all events or only critical warning or informational events The event log table sho
230. size in base 2 Disk drives usually show size in base 10 Memory RAM and ROM size is always shown in base 2 Precision Preference Select the number of decimal places 1 10 for display of storage space sizes Unit Preference Select the unit for display of storage space sizes Select Auto to let the system determine the proper unit for a size Based on the precision setting if the selected unit is too large to meaningfully display a size the system uses a smaller unit for that size For example if the unit is set to TB precision is set to 1 and base is set to 10 the size 0 11709 TB is shown as 117 1 GB Temperature Preference Specifies to use either the Celsius scale or the Fahrenheit scale for temperature values Auto Sign Out Select the amount of time that the user s session can be idle before the user is automatically signed out 2 720 minutes The default is 30 minutes Locale The user s preferred display language which overrides the system s default display language Installed language sets include Chinese Simplified Chinese Traditional Dutch English French German Italian Japanese Korean and Spanish Click Add User 40 Configuring the system Modifying users To modify a user 1 2 3 In the Configuration View panel right click the system and select Configuration gt Users gt Modify User In the main panel select the user to modify Set the options Password A password is case sensitive canno
231. sk to update Quit the FTP session If the updated disks must be power cycled a Shut down both controllers by using RAIDar b Power cycle all enclosures as described in your product s setup guide EY NOTE If you loaded firmware to a Seagate 750 Gbyte Barracuda ES SATA drive after spin up it will be busy for about 50 seconds completing its update Then it will be ready for host I O Verify that each disk has the correct firmware revision Installing a license file 1 2 3 Ensure that the license file is saved to a network location that the storage system can access Open a Command Prompt Windows or a terminal window UNIX and navigate to the directory containing the license file to load Log in to the controller enclosure that the file was generated for ftp controller network address For example ftp 10 1 0 9 Log in as an FTP user Enter put license file license For example put certificate txt license A message confirms whether installation succeeded or failed If installation succeeds licensing changes take effect immediately 140 Using FTP to download logs and update firmware C Using SMI S This appendix provides information for network administrators who are managing the 3000 Series from a storage management application through the Storage Management Initiative Specification SMI S SMI S is a Storage Networking Industry Association SNIA standard that enables interoperable managemen
232. sk with volumes and to map the volumes to hosts Before using this wizard read documentation for your product to learn about vdisks volumes and mapping Then plan the vdisks and volumes you want to create and the default mapping settings you want to use The wizard guides you through the following steps For each step you can view help by clicking the help icon E in the wizard panel As you complete steps they are highlighted at the bottom of the panel If you cancel the wizard at any point no changes are made e Specify a name and RAID level for the vdisk e Select disks to use in the vdisk e Specify the number and size of volumes to create in the vdisk e Specify the default mapping for access to the volume by hosts Confirm changes and apply them Step 1 Starting the wizard 1 In the Configuration View panel right click the system and select either Provisioning gt Provisioning Wizard or Wizards gt Provisioning Wizard The wizard panel appears 2 Click Next to continue Step 2 Specifying the vdisk name and RAID level A vdisk is a virtual disk that is composed of one or more disks and has the combined capacity of those disks The number of disks that a vdisk can contain is determined by its RAID level All disks in a vdisk must be the same type SAS or SATA small or large form factor A maximum of 16 vdisks per controller can exist A vdisk can contain different models of disks and disks with different capacities For
233. snapshot task Ono In the Configuration View panel right click a volume and select Provisioning gt Create Snapshot In the main panel select Scheduled Set the options Snapshot prefix Optionally change the default prefix to identify snapshots created by this task The prefix is case sensitive cannot include a comma double quote or backslash and can have a maximum of 14 bytes Automatically created snapshots are named prefix_sn where n starts at 001 Snapshots to Retain Select the number of snapshots to retain When the task runs the retention count is compared with the number of existing snapshots e Ifthe retention count has not been reached the snapshot is created e If the retention count has been reached the volume s oldest snapshot is unmapped reset and renamed to the next name in the sequence Start Schedule Specify a date and a time in the future to be the first instance when the scheduled task will run and to be the starting point for any specified recurrence e Date must use the format yyyy mm dd e Time must use the format hh mm followed by either AM PM or 24H 24 hour clock For example 13 00 24H is the same as 1 00 PM e Recurrence Specify the interval at which the task should run Set the interval to at least two minutes For better performance if this task will run under heavy I O conditions or on more than three volumes set the retention count and the schedule interval to similar values for e
234. st Yes otherwise No e Host Type FC or iSCSI AssuredSAN 3000 Series RAlDar User Guide 97 Mapping properties When you select the Maps component the Maps for Host table shows e Type Explicit or Default Settings for an explicit mapping override the default mapping e Name Volume name e Serial Number Volume serial number e Ports Controller host ports through which the volume is mapped to the host e LUN Volume identifier presented to the host e Access Volume access type read write read only no access masked or notmapped Viewing information about an enclosure In the Configuration View panel right click an enclosure and select View gt Overview You can view information about the enclosure and its components in a front or rear graphical view or in a front or rear tabular view e Front Graphical Shows a graphical view of the front of each enclosure and its disks e Front Tabular Shows a tabular view of each enclosure and its disks e Rear Graphical Shows a graphical view of components at the rear of the enclosure e Rear Tabular Shows a tabular view of components at the rear of the enclosure In any of these views select a component to see more information about it Components vary by enclosure model If any components are unhealthy a table at the bottom of the panel identifies them Enclosure properties 98 When you select an enclosure a table shows e Health OK The enclosure is operating n
235. st possas alike e eee eed wa ed naw Gs ad ahi fale 35 Step 8 Confirming configuration changes enana enaena 37 Installing alicense ns esd Pu n a cone ES ad ESTAN MR A es E 37 Configuring system services A A e 38 Changing management interface settings o o onoono na 38 Configuring email notification A AA A AS 39 Configuring SNMP Mica eea 39 Configuring user accounts naonana oaae ee 40 No le SAA A Cone E aire Wu A A cate Od 40 M difying USErS ica ETE A IAS ana A a E a E Rs eat 41 REMOVING USEF 0 2 teehee Nees HS aap E pd Say Ae ed ON SE a eee AAA 41 Configuring system settings cd E E oben te ai Hedge dde Sh te 42 Changing the system date Onde dolia pu Ad Ada a NEAR o 42 Changing host interface settings are ari dr TARA Lee LR A 42 Changing network interface settings A a ek Bee a Be DO Ree A 44 Setting system information cst 9 eden Sn Wk IN A 45 Configuring advanced settings n a ct Ne a A ME o ds a he a E os 45 ee A A O RE Teed 45 Configuring SMAR 2 043 wie Ae alo oan be aa gueas 45 Configuring dynamic spares vea 00 Godt hag Rae ale hor Raw eh Me deena ea fe 45 Configuring drive spin down for available disks and global spares ooooooooooo 45 Scheduling drive spin down for all disks o o ooo oooooooomoomomororooooo 46 Configuring the EMP polling rales tica eE 46 Changing system cache settings 0 da A A AE SAA Ww a 47 Changing the synchronize cache modes A td edi amp 47 Changin
236. stration Models the profiles registered in the object manager and associations between registration classes and domain classes implementing the profile Software Models software or firmware installed on the system Masking and Mapping Models device mapping and masking abilities for SCSI systems Disk Drive Lite Models disk drive devices Extent Composition Provides an abstraction of how it virtualizes exposable block storage elements from the underlying Primordial storage pool Location Models the location details of product and its sub components Sensors Specializes the DMTF Sensors profile Software Inventory Models installed and available software and firmware Storage Enclosure Describes an enclosure that contains storage elements e g disk or tape drives and enclosure elements e g fans and power supplies Multiple Computer System Models multiple systems that cooperate to present a virtual computer system with additional capabilities or redundancy AssuredSAN 3000 Series RAlDar User Guide 143 CIM Alerts Table 16 CIM Alert indication events FRU Event category Corresponding SMI S class Operational status values that would trigger alert conditions Controller DHS_ Controller Down Not Installed OK Hard Disk Drive DHS_DiskDrive Unknown Missing Error Degraded OK Fan DHS_PSUFan Error Stopped OK Power Supply DHS_PSU Unknown Error Oth
237. system 85 check between local and remote systems 85 log data saving to a file 78 logs downloading debug 135 loop IDs configuring FC 36 42 LUNs configuring response to missing 47 M management interface services configuring 38 configuring with Configuration Wizard 34 mapping volumes See volume mapping masked volume 21 master volumes about 24 maximum physical and logical entities supported 88 metadata clearing disk 79 MIB See SNMP missing LUN response configuring 47 modified snapshot data deleting about 25 N network port 33 network port properties 101 network ports configuring 44 configuring with Configuration Wizard 33 NTP about 30 configuring 42 O Out port properties 101 102 P partner firmware update configuring 48 passwords See users policies and thresholds snap pool 96 power supply properties 100 preferred owner 51 prerequisite knowledge 13 primary volume changing for a replication set 118 priority configuring utility 49 provisioning first time 15 Provisioning Wizard using to create a vdisk with volumes and mappings 55 Q quarantined vdisk 83 R RAID levels about 28 RAIDar Storage Management Utility See WBI read ahead caching optimizing 23 related documentation 13 remote replication about 105 remote systems about managing 24 adding 50 check links from local system 85 removing 50 viewing information about 103 replication disaster recovery 118 replication image primary sna
238. system and select Configuration gt Advanced Settings gt System Utilities Set the options Either select enable or clear disable the Vdisk Scrub option This option is disabled by default e Set the Vdisk Scrub Interval which is the interval between background vdisk scrub finishing and starting again from 1 360 hours the default is 24 hours Click Apply Configuring background scrub for disks not in vdisks You can enable or disable whether the system continuously analyzes disks that are not in vdisks to detect report and store information about disk defects Errors reported include metadata read errors SMART events during scrub bad blocks during scrub and new disk defects during scrub The interval between background disk scrub finishing and starting again is 24 hours Enabling background vdisk scrub is recommended for both SATA and SAS disks To configure background scrub for vdisks 1 2 3 In the Configuration View panel right click the system and select Configuration gt Advanced Settings gt System Utilities Either select enable or clear disable the Disk Scrub option This option is disabled by default Click Apply Configuring utility priority You can change the priority at which the Verify Reconstruct Expand and Initialize utilities run when there are active O operations competing for the system s controllers To change the utility priority 1 2 In the Configuration View pan
239. t click a vdisk and select Configuration gt Modify Vdisk Owner The main panel shows the vdisk s owner 2 Select a new owner 3 Click Modify Owner A confirmation dialog appears 4 Click Yes to continue otherwise click No If you clicked Yes a processing dialog appears When processing is complete a success dialog appears 5 Click OK Configuring drive spin down for a vdisk The drive spin down DSD feature monitors disk activity within system enclosures and spins down inactive disks For a specific vdisk you can enable or disable DSD and set the period of inactivity after which the vdisk s disks and dedicated spares automatically spin down To configure a time period to suspend and resume DSD for all vdisks see Scheduling drive spin down for all disks on page 46 To configure DSD for available disks and global spares see Configuring drive spin down for available disks and global spares on page 45 AssuredSAN 3000 Series RAlDar User Guide 51 DSD affects disk operations as follows Spun down disks are not polled for SMART events e Operations requiring access to disks may be delayed while the disks are spinning back up e Ifa suspend period is configured and it starts while a vdisk has started spinning down the vdisk spins up again To configure DSD for a vdisk 1 In the Configuration View panel right click a vdisk and select Configuration gt Configure Vdisk Drive Spin Down 2 Set the options e Either select
240. t for storage networks and storage devices SMI S overview SMLS replaces multiple disparate managed object models protocols and transports with a single object oriented model for each type of component in a storage network The specification was created by SNIA to standardize storage management solutions SMI S enables management applications to support storage devices from multiple vendors quickly and reliably because they are no longer proprietary SMI S detects and manages storage elements by type not by vendor Key components The key SMI S components are e Web based Enterprise Management WBEM Common Information Model CIM Service Location Protocol SLP WBEM WBEM is a set of management and internet standard technologies developed to unify the management of enterprise computing environments WBEM includes the following specifications e xmlCIM defines XML elements conforming to Document Type Definition DTD which can be used to represent CIM classes and instances e CIM Operations over HTTP defines a mapping of CIM operations onto HTTP used as a transport mechanism CIM CIM the data model for WBEM provides a common definition of management information for systems networks applications and services and allows for vendor extensions SMI S is the interpretation of CIM for storage lt provides a consistent definition and structure of data using object oriented techniques The standard language used to define elem
241. t for further assistance Each disk in a vdisk has metadata that identifies the owning vdisk the other members of the vdisk and the last time data was written to the vdisk The following situations cause a disk to become a leftover Vdisk members timestamps do not match so the system designates members having an older timestamp as leftovers e A disk is not detected during a rescan then is subsequently detected When a disk becomes a leftover the following changes occur e The disk s health becomes Degraded and its How Used state becomes LEFTOVR e The disk is automatically excluded from the vdisk causing the vdisk s health to become Degraded or Fault depending on the RAID level e The disk s fault LED is illuminated amber If spares are available and the health of the vdisk is Degraded the vdisk will use them to start reconstruction When reconstruction is complete you can clear the leftover disk s metadata Clearing the metadata will change the disk s health to OK and its How Used state to AVAIL making the disk available for use in a new vdisk or as a spare AssuredSAN 3000 Series RAlDar User Guide 79 If spares are not available to begin reconstruction or reconstruction has not completed keep the leftover disk so that you ll have an opportunity to recover its data This command clears metadata from leftover disks only If you specify disks that are not leftovers the disks are not changed To clear metadata from l
242. t include a comma double quote or backslash and can have a maximum of 32 bytes User Roles Select Monitor to let the user view system settings or Manage to let the user view and change system settings You cannot change the roles of user manage User Type Select Standard to allow access to standard functions or Advanced to allow access to all functions except diagnostic functions or Diagnostic to allow access to all functions NOTE This release has no functions that require Advanced or Diagnostic access a Standard user can access all functions WEBI Access Allows access to the web based management interface CLI Access Allows access to the command line management interface FTP Access Allows access to the file transfer protocol interface which provides a way to install firmware updates and download logs Base Preference Select the base for entry and display of storage space sizes In base 2 sizes are shown as powers of 2 using 1024 as a divisor for each magnitude In base 10 sizes are shown as powers of 10 using 1000 as a divisor for each magnitude Operating systems usually show volume size in base 2 Disk drives usually show size in base 10 Memory RAM and ROM size is always shown in base 2 Precision Preference Select the number of decimal places 1 10 for display of storage space sizes Unit Preference Select the unit for display of storage space sizes Select Auto to let the system determine the proper unit
243. t the Snapshot feature o nnn AA A A a 24 Related AAA a i e i ero a aiea ar ae a bade he wath E e TA does 26 About the Volume Copy feature n n nannan annaa 26 Related TOPis se sapai NS a a e A A 28 About the AssuredRemote replication feature 2 nnana nnana 28 About the VDS and VSS hardware providers 056s 0e5 lt a aana 28 Abou RAID levels u spg a neren lit a a a sean hee ao eee 28 About size representations dy o io ad die ia a Dl AA AA 30 Related topics o an nnana 30 About the system date and Me ra Ad a dd dd e o cd 30 AS A A oe ee eee 31 About storage space color codes rd A a io Ns 31 About Configuration View icons iii A id di 31 AbGul vdiskr construction 244i 22552564 b0h debi eee dba e BE Eaa aE ros 31 About data protection in a single controller storage system 2 ee ee 32 AssuredSAN 3000 Series RAIDar User Guide 3 2 Configuring the system 6 05 cdg dead eat ak A at 33 4 Using the Configuration Wizard n a ti eea 33 Step 1 Starting the wizard A A A Scone and Nw nde Bey ac aa a borne DA a Soe Aes 33 Step 2 Changing default passwords hara Kv dtc adds a PARES Bade WEE 33 Step 3 Configuring network ports onanan de dr a Re e SRA ad aL beds 33 Step 4 Enabling system management services 2 2 0 cee tee eee ee 34 Step 5 Setting system information cst RP ct oer ag a eee eae ent aha ee ha Such Marg tg 9 wae ee 35 Step 6 Configuring event notification 6 ete nee B5 Step 7 Configuring Ho
244. ta copied from a source volume to a snapshot and data written directly to a snapshot UniqueData The amount of data that has been written to the snapshot since the last snapshot was taken If the snapshot has not been written or is deleted this value is zero bytes SharedData The amount of data that is potentially shared with other snapshots and the associated amount of space that will be freed if the snapshot is deleted This represents the amount of data written directly to the snapshot It also includes data copied from the source volume to the storage area for the oldest snapshot since that snapshot does not share data with any other snapshot For a snapshot that 94 Viewing system status is not the oldest if the modified data is deleted or if it had never been written to this value is zero bytes Priority Retention priority for the snapshot based on the snapshot attributes and the user defined priority for the snapshot type User Priority User defined priority for the snapshot type Type Standard snapshot Snapshot of a master volume that consumes a snapshot license e Replication snapshot For a primary or secondary volume a snapshot that was created by a replication operation but is not a sync point e Replication snapshot Replicating For a primary volume a snapshot that is being replicated to a secondary system e Replication snapshot Current sync point For a primary or secondary volume the latest snapshot th
245. ta copy the second sync point 3 Take second snapshot and request replication This Other snapshots can be taken and replication initiated can be taken while the initial replication is in progress On the primary volume while replication is in progress These snapshots are queued waiting for prior replications to complete These replication snapshots will not become sync points until their replications are 5 When the initial replication is complete the second complete replication automatically starts Only the data changed since Snap 1 is replicated 4 Snapshot taken on secondary volume This is the first replication sync point Figure 5 Actions that occur during a series of replications AssuredSAN 3000 Series RAIDar User Guide 107 The figure above illustrates initial delta and queued replications e Initial replication When the first replication is initiated a snapshot of the primary volume is taken and every block of data is then copied to the secondary volume When the copy is complete the first snapshot is taken on the secondary volume creating the first sync point This sync point can be used to determine the delta data from that sync point to a later snapshot Actions 1 4 are the initial replication e Delta replications Delta data is the list of 64 KB blocks that differs between the last snapshot replicated and the next snapshot to be replicated This delta data is then replicated from the replication snapshot on
246. ta in the roll back Otherwise the master volume will contain only the data that existed when the snapshot was created 5 Click Roll Back Volume The roll back starts You can now remount re present remap the volume 6 When the roll back is complete if you unmounted unpresented unmapped the snapshot you can remount re present remap it Creating a snap pool Before you can convert a standard volume to a master volume or create a master volume for snapshots a snap pool must exist A snap pool and its associated master volumes can be in different vdisks but must be owned by the same controller To create a snap pool 1 In the Configuration View panel right click a vdisk and select Provisioning gt Create Snap Pool 2 In the main panel set the options Snap Pool Name Optionally change the default name for the snap pool A snap pool name is case sensitive cannot already exist in the system and can have a maximum of 20 bytes A name cannot include a comma double quote or backslash e Size Optionally change the default size which is all free space in the vdisk The supported minimum size is 5 37 GB The recommended minimum size is 6 GB 3 Click Create Snap Pool If the task succeeds the new snap pool appears in the Configuration View panel AssuredSAN 3000 Series RAlDar User Guide 69 Deleting snap pools Before you can delete a snap pool you must delete any associated snapshots and either delete the associated master volu
247. tart Vdisk 2 In the main panel click Start Vdisk A message indicates whether the task succeeded or failed EY NOTE If the replication set was deleted while the secondary volume s vdisk was stopped restarting the vdisk will make the set partially reappear To clean up this remnant reattach the secondary volume set it to be the primary volume by using the Set Replication Primary Volume panel on page 118 and then delete the replication set again Reattaching a secondary volume Reattaching a secondary volume is the last part of the process for moving a secondary volume from a primary system into a secondary system The process to move a secondary volume is 1 In the system where the secondary volume resides a Detach the secondary volume For details see Detaching a secondary volume on page 115 b If the secondary volume s vdisk contains other secondary volumes detach those volumes c Stop the secondary volume s vdisk For details see Stopping a vdisk on page 116 d If the secondary volumes snap pools are in other vdisks stop those vdisks e Move the vdisks into the secondary system AssuredSAN 3000 Series RAlDar User Guide 117 2 In the secondary system a Start the snap pools vdisks For details see Starting a vdisk on page 117 b Start the secondary volumes vdisks c Reattach the secondary volumes To reattach a secondary volume 1 In the Configuration View panel right click the secondary volume
248. te through caching 22 A CAUTION Only disable write back caching if you fully understand how the host operating system application and adapter move data If used incorrectly you might hinder system performance You can change a volume s write back cache setting Write back is a cache writing strategy in which the controller receives the data to be written to disks stores it in the memory buffer and immediately sends the host operating system a signal that the write operation is complete without waiting until the data is actually written to the disk Write back cache mirrors all of the data from one controller module cache to the other Write back cache improves the performance of write operations and the throughput of the controller When write back cache is disabled write through becomes the cache writing strategy Using write through cache the controller writes the data to the disks before signaling the host operating system that the process is complete Write through cache has lower write operation and throughput performance than write back but it is the safer strategy with minimum risk of data loss on power failure However write through cache does not mirror the write data because the data is written to the disk before posting command completion and mirroring is not required You can set conditions that cause the controller to change from write back caching to write through caching In both caching strategies active active failo
249. tects against single disk failure Not well suited for transaction oriented network applications single parity disk does not support multiple concurrent write requests Block level data striping with distributed parity Best cost performance for transaction oriented networks very high performance and data protection supports multiple simultaneous reads and writes can also be optimized for large sequential requests protects against single disk failure Write performance is slower than RAID O or RAID 1 Block level data striping with double distributed parity Best suited for large sequential workloads non sequential read and sequential read write performance is comparable to RAID 5 protects against dual disk failure Higher redundancy cost than RAID 5 because the parity overhead is twice that of RAID 5 not well suited for transaction oriented network applications non sequential write performance is slower than RAID 5 Stripes data across multiple RAID 1 sub vdisks Stripes data across multiple RAID 5 sub vdisks Highest performance and data protection protects against multiple disk failures Better random read and write performance and data protection than RAID 5 supports more disks than RAID 5 protects against multiple disk failures High redundancy cost overhead because all data is duplicated twice the storage capacity is required requires minimum of four disks Low
250. ted master volume including copy on write data and data written explicitly to the snapshots A snap pool cannot be mapped A virtual volume that preserves the state of a master volume s data as it existed when the snapshot was created Data associated with a snapshot is recorded in both the master volume and in its associated snap pool A snapshot can be mapped and written to The capability to create snapshots is a licensed feature AssuredSnap Snapshots that can be mapped to hosts are counted against the snapshotlicense limit whereas transient and unmappable snapshots are not Solid state drive Unified LUN Presentation A RAID controller feature that enables a host to access mapped volumes through any controller host port ULP incorporates Asymmetric Logical Unit Access ALUA extensions Cache data that has not been written to disk and is associated with a volume that no longer exists or whose disks are not online If the data is needed the volume s disks must be brought online If the data is not needed it can be cleared in which case it will be lost and data will differ between the host and disk Unwritable cache is also called orphan data A virtual disk comprising the capacity of one or more disks The number of disks that a vdisk can contain is determined by its RAID level A portion of the capacity of a vdisk that can be presented as a storage device to a host An independent copy of the data in a volume The c
251. tem Sa 4 s cana tee eg eid ate ad aoe hoe Rbk A EAS wate A 55 Using the Provisioning WIZARD Ad RAGS IRR Ween ae eT AS 55 Step 1 Starting the wizard ohne pit aeons Sc chaser ete We dee Qtech A Masco ae etarn ek 55 Step 2 Specifying the vdisk name and RAID level 2 2 0 eee teens 55 Sep elec CISKSN a ahd hah daa o can te ee hes AM eat er wel Gi toe BD tone A 56 Step 4 Defining volumes csc ia ES DS EE ROIs I aap Gate Kon a Re BE 56 Step 5 Setting the default mapping tal fees eek ee eee ek a wage als 57 Step 6 Confirming vdisk settings eink yee ow ld Mew i eae SEGRE EGS ae hw Ee 57 EE CN MEA A eae wos aoe ee E Wena A ane NA 57 Deleting ydisks nese at i E Cees OEY Saree a DAI EEA A E Sie EA 58 Managing global spares AAA ia 58 Creating a volume set dnd nannaa 59 Creating avo A A ERA 59 Pao AAA ON O O GS be tag 60 Changing default mapping for multiple volumes 2 o 60 Explicitly mapping multiple volumes 1d add da hye ete AAA A PEEKED eRe eee 61 Changing a volume s default mapping a awe Gace La Sah daltes CaWhe Rah et ey oes 24s 62 Changing a volume s explicit mappings 5 054 dca yer Kone Ieee ts ELAR AKRAM AE idad 63 Uma prnl AAA 64 Expanding a VOM id dd db a ir Rade bouts A ahi AA Rd Ged Sate icy AA ck 64 Crecting multiple snapshots dt til wart heat hace at oe hate eed Wied AAA Whos BARE 64 GANSTA AA A A AN 65 Deleting Snaps ils faa tte sd topes a tga ng tae eae oe ne earned ah aol a E a a a te ee a
252. th hosts or with remote systems you must configure the system s host interface options There are options for FC and iSCSI ports but not for SAS ports For FC ports you can set these options e Speed can be set to auto the default which auto negotiates the proper link speed with the host or to 8Gb Gbit per second 4Gb or 2Gb Because a speed mismatch prevents communication between the port and host set a speed only if you need to force the port to use a known speed for testing or you need to specify a mutually supported speed for more than two FC devices connected in an arbitrated loop AssuredSAN 3000 Series RAlDar User Guide 35 e Connection mode can be set to loop point to point the default for 3XX3 models or auto the default for 3XX0 models Loop protocol can be used in a physical loop or in a direct physical connection between two devices Point to point protocol can only be used on a direct physical connection between exactly two devices Auto sets the mode based on the detected connection type e Loop IDs can be set per controller to use soft or hard target addressing Soft target addressing which is the default enables a LIP loop initialization process to determine the loop ID Use this setting if the loop ID is permitted to change after a LIP or power cycle Hard target addressing requests a specific loop ID that should remain after a LIP or power cycle If the port cannot acquire the specified ID it is assigned a
253. the firmware file to load 6 Enter ftp controller network address For example ftp 10 1 0 9 136 Using FTP to download logs and update firmware 7 Log in as an FTP user 8 Enter put firmware file flash For example put T230R01 01 bin flash A CAUTION Do not perform a power cycle or controller restart during a firmware update If the update is interrupted or there is a power failure the module might become inoperative If this occurs contact technical support The module might need to be returned to the factory for reprogramming Ef NOTE If you attempt to load an incompatible firmware version the message Code Load Fail Bad format image is displayed and after a few seconds the FTP prompt is redisplayed The code is not loaded Firmware update typically takes 10 minutes for a controller having current CPLD firmware or 20 minutes for a controller having downlevel CPLD firmware If the controller enclosure has attached drive enclosures allow additional time for each expansion module EMP to be updated This typically takes 3 minutes for an EMP in each MSA2000 drive enclosure EY NOTE If you are using a Windows FTP client during firmware update a client side FTP application issue can cause the FTP session to be aborted If this issue persists try using RAIDar to perform the update use another client or use another FTP application If the Storage Controller cannot be updated the update operation is
254. the value changes to Expired or Expired Renewable To install a permanent license 1 Ensure that e The license file is saved to a network location that RAlDar can access You are signed into the controller enclosure that the file was generated for 2 In the Configuration View panel right click the system and select Tools gt Install License ow Click Browse to locate and select the license file 4 Click Install License File If installation succeeds the System Licenses table is updated The licensing change takes effect immediately The feature s Expiration value shows Never Configuring system services Changing management interface settings 38 You can enable or disable management interfaces to limit the ways in which users and host based management applications can access the storage system Network management interfaces operate out of band and do not affect host I O to the system The network options are e Web Browser Interface WBI The primary interface for managing the system You can enable use of HTTP of HTTPS for increased security or both Command Line Interface CLI An advanced user interface for managing the system You can enable use of Telnet of SSH secure shell for increased security or both Storage Management Initiative Specification SMIS Used for remote management of the system through your network e File Transfer Protocol FTP A secondary interface for installing firmware updates
255. the vdisk can continue to be used while the Reconstruct utility runs A compatible spare is one whose capacity is equal to or greater than the smallest disk in the vdisk A compatible spare has enough capacity to replace the failed disk and is the same type SAS or SATA If no compatible spares are available reconstruction does not start automatically To start reconstruction manually replace each failed disk and then do one of the following e Add each new disk as either a dedicated spare or a global spare Remember that a global spare might be taken by a different critical vdisk than the one you intended When a global spare replaces a disk in a vdisk the global spare s icon in the enclosure view changes to match the other disks in that vdisk e Enable the Dynamic Spare Capability option to use the new disks without designating them as spares AssuredSAN 3000 Series RAlDar User Guide 31 RAID 6 reconstruction behaves as follows e If one disk fails and a compatible spare is available the system begins to use that spare to reconstruct the vdisk If a second disk fails during reconstruction reconstruction continues until it is complete regardless of whether a second spare is available If the spare fails during reconstruction reconstruction stops e If two disks fail and only one compatible spare is available the system waits five minutes for a second spare to become available After five minutes the system begins to use that spare to
256. to change to create a new entry The entry s values appear in the option fields 3 Set the options Node Name IQN The initiator name typically in IQN format Secret The secret that the target uses to authenticate the initiator The secret is case sensitive and can include 12 16 bytes Name if mutual CHAP Optional for mutual CHAP only Specifies the target name typically in IQN format The name is case sensitive can include a maximum of 223 bytes and must differ from the initiator name To find a controller iSCSI port s IQN select the controller enclosure view the Enclosure Overview panel page 98 select the Rear Graphical tab select an iSCSI port and view the Target ID field e Secret if mutual CHAP Optional for mutual CHAP only Specifies the secret that the initiator uses to authenticate the target The secret is case sensitive can include 12 16 bytes and must differ from the initiator secret A storage system s secret is shared by both controllers 4 Click Add Modify Entry If the task succeeds the new or modified entry appears in the CHAP entries table To delete a CHAP entry 1 In the Configuration View panel right click Hosts or a specific host and then select Provisioning gt Configure CHAP If any CHAP entries exist a table shows them by node name 2 Select the entry to delete 3 Click Delete Entry If the task succeeds the entry is removed from the CHAP entries table Modifying a schedule
257. troller system and the Partner Firmware Update PFU option is enabled when you update one controller the system automatically updates the partner controller If PFU is disabled after updating firmware on one controller you must log into the partner controller s IP address and perform this firmware update on that controller also For best results the storage system should be in a healthy state before starting firmware update Firmware update via RAIDar is supported from an earlier TS230 version only To update controller module firmware 1 Obtain the appropriate firmware file and download it to your computer or network 2 If the storage system has a single controller stop I O to vdisks before starting the firmware update 3 Restart the Management Controller MC in the controller to be updated or if PFU is enabled restart the MCs in both controllers For the procedure see Restarting or shutting down controllers on page 80 4 In the Configuration View panel right click the system and select Tools gt Update Firmware The table titled Current Controller Versions shows the currently installed versions 5 Click Browse and select the firmware file to install 6 Click Install Controller Module Firmware File A dialog box shows firmware update progress The process starts by validating the firmware file e Ifthe file is invalid verify that you specified the correct firmware file If you did try downloading it again from the source locatio
258. ts 1 Verify that hosts are not accessing the snapshots that you want to delete 2 In the Configuration View panel right click either the system or a vdisk or a master volume or a primary volume or a secondary volume or a snapshot or a replication image and then select Provisioning gt Delete Snapshot 3 In the main panel select the snapshots to delete Click Delete Snapshot s 5 Click OK to continue otherwise click Cancel If you clicked OK a processing dialog appears If the task succeeds an overview panel and a success dialog appear A 6 Click OK As processing completes the deleted items are removed from the Configuration View panel Resetting a snapshot 66 If the system is licensed to use Snapshots as an alternative to taking a new snapshot of a volume you can replace the data in a snapshot with the current data in the source volume The snapshot s name and mapping settings are not changed The snapshot data is stored in the source volume s snap pool A CAUTION To avoid data corruption before resetting a snapshot it must be unmounted unpresented unmapped from hosts You can reset a snapshot now or schedule the reset task To reset a snapshot now Unmount unpresent unmap the snapshot from hosts In the Configuration View panel right click a snapshot and select Provisioning gt Reset Snapshot In the main panel select Now Click Reset Snapshot A confirmation dialog appears WR wON oo
259. ts both controllers LUNs are accessible through the partner When you create a vdisk you can use the default chunk size or one that better suits your application The chunk size is the amount of contiguous data that is written to a disk before moving to the next disk After a vdisk is created its chunk size cannot be changed For example if the host is writing data in 16 KB transfers that size would be a good choice for random transfers because one host read would generate the read of exactly one disk in the volume That means if the requests are random like then the requests would be spread evenly over all of the disks which is good for performance If you have 16 KB accesses from the host and a 64 KB block size then some of the hosts accesses would hit the same disk each chunk contains four possible 16 KB groups of data that the host might want to read which is not an optimal solution Alternatively if the host accesses were 128 KB then each host read would have to access two disks in the vdisk For random patterns that ties up twice as many disks When you create a vdisk you can also create volumes within it A volume is a logical subdivision of a vdisk and can be mapped to controller host ports for access by hosts The storage system presents only volumes not vdisks to hosts 18 Getting started You can create vdisks with or without volumes by using the Provisioning Wizard or you can create vdisks manually Best practices for cr
260. u created the vdisk the default is 64 KB Non RAID and RAID 1 vdisks are considered to have a stripe size of 64 KB e Specific size options let you select an amount of data for all accesses e The Maximum option lets the controller dynamically calculate the maximum read ahead cache size for the volume For example if a single volume exists this setting enables the controller to use nearly half the memory for read ahead cache Only use Maximum when disk latencies must be absorbed by cache For example for read intensive applications you will want data that is most often read to be in cache so that the response to the read request is very fast otherwise the controller has to locate which disks the data is on move it up to cache and then send it to the host Do not use Maximum if more than two volumes are owned by the controller on which the read ahead setting is being made If there are more than two volumes there is contention on the cache as to which volume s read data should be held and which has the priority each volume constantly overwrites the other volume s data in cache which could result in taking a lot of the controller s processing power e The Disabled option turns off read ahead cache This is useful if the host is triggering read ahead for what are random accesses This can happen if the host breaks up the random I O into two smaller reads triggering read ahead You can also change the optimization mode e The stan
261. uantity of task schedules for the volume e The quantity of replication addresses for the volume e The quantity of replication images for the volume For descriptions of storage space color codes see About storage space color codes on page 31 Select a component to see more information about it AssuredSAN 3000 Series RAlDar User Guide 119 Replication properties For a local primary or secondary volume the Replication Properties for Volume table also shows Name Replication volume name Serial Number Replication volume serial number Status Replication volume status Replicating Suspended Initializing Inconsistent Offline Online or Establishing proxy After a secondary volume is reattached it has Establishing proxy status while establishing a proxy connection with the remote primary system in preparation for replication Status Reason More information about the status value or N A for Online status Monitor Interval in seconds at which the primary volume should query the secondary volume Location Local or Remote Primary Volume Name Primary volume name If the replication set has a primary volume conflict all associated primary volumes are displayed Primary Volume Serial Number Primary volume serial number If the replication set has a primary volume conflict all associated primary volumes are displayed Primary Volume Status Primary volume status Online Offline Conflict or N A Maximum Number of Qu
262. um of four available disks to a redundant vdisk RAID 1 3 5 6 10 50 for use as spares by that vdisk only A spare must be the same type SAS or SATA small or large form factor as other disks in the vdisk and have sufficient capacity to replace the smallest disk in the vdisk IFa disk in the vdisk fails a dedicated spare is automatically used to reconstruct the vdisk A redundant vdisk other than RAID 6 becomes Critical when one disk fails A RAID 6 vdisk becomes Degraded when one disk fails and Critical when two disks fail After the vdisk s parity or mirror data is completely written to the spare the vdisk returns to fault tolerant status For RAID 50 vdisks if more than one sub vdisk becomes critical reconstruction and use of assigned spares occur in the order sub vdisks are numbered 50 Configuring the system To change a vdisk s spares 1 In the Configuration View panel right click a vdisk and select Configuration gt Manage Dedicated Spares The main panel shows information about the selected vdisk its spares and all disks in the system Existing spares are labeled SPARE e Inthe Disk Sets table the number of white slots in the SPARE entry s Disks field shows how many spares you can add to the vdisk e In the enclosure view or list only existing spares and suitable available disks are selectable 2 Select spares to remove disks to add as spares or both 3 Click Modify Spares If the task succeeds the panel is updated t
263. ume appears under the primary volume e Ifa replication was performed under both the primary volume and the secondary volume a replication image appears e If not already present the primary volume s snap pool appears e Under the secondary vdisk e The secondary volume appears e If the primary volume is on a remote system the primary volume appears under the secondary volume e Ifa replication was performed under both the primary volume and the secondary volume a replication image appears e If not already present the secondary volume s snap pool appears Replicating a snapshot If the system is licensed to use remote replication you can replicate an existing primary snapshot that is mapped to a host You can only replicate a snapshot of a volume that is already part of a replication set If the selected snapshot hasn t already been replicated to a secondary volume each replication volume in the replication set is requested to replicate the snapshot data Only snapshot preserved data is replicated snapshot modified data is not replicated To replicate a snapshot 1 In the Configuration View panel right click a snapshot and select Provisioning gt Replicate Snapshot 2 In the main panel optionally change the default replication image name A name is case sensitive cannot already exist in a vdisk cannot include a comma double quote or backslash and can have a maximum of 20 bytes 3 Click Initiate Replication
264. up a SLP DA server or using unicast requests Problem can t determine if SMI S is running Cause Initial troubleshooting Solution Install wbemcli on a Linux system by typing apt get install wbemcli Type wbemcli nl t noverify ein https manage manage 5989 root hpq cim_computersystem Definitions SMI S SNIA s Storage Management Initiative Specification Recipe Pseudo client code added to the SMIS specification to demonstrate usage of methods and associations Intrinsic Methods Methods inherited from CIM and present in all classes such as getclass createinstance enumerateinstances and associatorNames Extrinsic Methods Methods which are particular to a specific class Block Server Performance subprofile The implementation of the block server performance subprofile is split into two parts phase 1 and phase 2 Phase 1 will implement the CIM_XXXStatisticalData classes and their associations Phase 2 will implement the GetStatisticsCollection CreateManifestCollection AddOrModifyManifest and RemoveManifest methods LUN Masking and Mapping operations The implementation of the Masking and Mapping subprofile s extrinsic methods allows CIM clients to create LUNs by mapping volumes to logical ports The ExposePaths method is fully implemented and simplifies this operation to 1 step The CreateStorageHardwarelD and DeleteStorageHardwarelD methods all CIM clients to create and remove hosts AssuredSAN 3000 Series RAlDar
265. ver of the controllers is enabled You can enable and disable the write back cache for each volume By default volume write back cache is enabled Because controller cache is backed by super capacitor technology if the system loses power data is not lost For most applications this is the correct setting If you are doing random access to this volume leave the write back cache enabled The best practice for a fault tolerant configuration is to use write back caching Getting started Optimizing read ahead caching A CAUTION Only change read ahead cache settings if you fully understand how the host operating system application and adapter move data so that you can adjust the settings accordingly You can optimize a volume for sequential reads or streaming data by changing its read ahead cache settings Read ahead is triggered by two back to back accesses to consecutive LBA ranges whether forward increasing LBAs or reverse decreasing LBAs You can change the amount of data read in advance after two back to back reads are made Increasing the read ahead cache size can greatly improve performance for multiple sequential read streams however increasing read ahead size will likely decrease random read performance The Default option works well for most applications it sets one chunk for the first access in a sequential read and one stripe for all subsequent accesses The size of the chunk is based on the chunk size used when yo
266. verting data back to original data Deleting only modified data on a snapshot For snapshots that have been made accessible as read write you can delete just the modified write data that was written directly to a snapshot When the modified data is deleted the snapshot data reverts to the original data that was snapped This feature is useful for testing an application for example You might want to test some code which writes data to the snapshot Rather than having to take another snapshot you can just delete any write data and start again Rolling back the data in a source volume The rollback feature enables you to revert the data in a source volume to the data that existed when a specified snapshot was created preserved data Alternatively the rollback can include data that has been modified write data on the snapshot since the snapshot was taken For example you might want to take a snapshot mount present map that snapshot for read write and then install new software on that snapshot for test purposes If the software installation is successful you can rollback the master volume to the contents of the modified snapshot preserved data plus the write data The following figure shows the difference between rolling back the master volume to the data that existed when a specified snapshot was created preserved and rolling back preserved and modified data MasterVolume 1 Snapshot 1 Song aye A Preserved Data Monday
267. vid connUnitRevsDescription connUnitSensorTable Vendor specific string identifying a revision of a component of the connUnit Description of a component to which the revision corresponds String specifying the code version Reports Not Installed or Offline if module information is not available See External details for connUnitRevsTable on page 129 Includes the following objects as specified by the FA MIB2 2 Spec connUnitSensorUnitId connUnit Id of the connectivity unit that contains this sensor table Same as connUnitId connUnitSensoriIndex Unique value for each connUnitSensorEntry between 1 and connUnitNumSensors See External details for connUnitSensorlable on page 130 connUnitSensorName connUnitSensorStatus Textual identification of the sensor intended primarily for operator use Status indicated by the sensor See External details for connUnitSensorlable on page 130 ok 3 warning 4 or failed 5 as appropriate for FRUs that are present or other 2 if FRU is not present connUnitSensorInfo Not supported Empty string connUnitSensorMessage Description the sensor status as a message connUnitSensorName followed by the appropriate sensor reading Temperatures display in both Celsius and Fahrenheit for example CPU Temperature Controller Module A 48C 118F Reports Not installed or Offline if data is not available connUnitSensorType Type
268. wn 1 In the Configuration View panel right click the local system and select Tools gt Shut Down or Restart Controller 2 In the main panel set the options Select the Shut down operation Select whether to restart the processor in controller A B or both 3 Click Shut down now A confirmation dialog appears A Click Yes to continue otherwise click No If you clicked Yes a second confirmation dialog appears 5 Click Yes to continue otherwise click No If you clicked Yes a message describes shutdown activity EY NOTE If an iSCSI port is connected to a Microsoft Windows host the following event is recorded in the Windows event log Initiator failed to connect to the target Testing event notification You can send a test message to verify that interfaces such as email SNMP and SMI S that are configured to receive event notification messages do receive them Email and SNMP configuration settings must include a notification level other than none Disabled for event messages to be sent to those interfaces To send a test message 1 In the Configuration View panel right click the local system and select Tools gt Send Test Notification 2 Click Send If the task succeeds verify that the test message reached the destinations Expanding a vdisk You can expand the capacity of a vdisk by adding disks to it up to the maximum number of disks that the storage system supports Host O to the vdisk can conti
269. wnload directory set the file store zip is saved there e Otherwise you are prompted to specify the file location and name The default file name is store zip Change the name to identify the system controller and date EY NOTE Because the file is compressed you must uncompress it before you can view the files it contains To examine diagnostic data first view store_yyyy_mm_dd_ hh mm _ss logs Resetting a host port 78 Making a configuration or cabling change on a host might cause the storage system to stop accepting I O requests from that host For example this problem can occur after moving host cables from one HBA to another on the host To fix such a problem you might need to reset controller host ports channels For a Fibre Channel host port configured to use FC AL loop topology a reset issues a loop initialization primitive LIP For iSCSI resetting a port might reset other ports For SAS resetting a host port issues a COMINIT COMRESET sequence and might reset other ports Using system tools To reset a host port 1 In the Configuration View panel right click the system and select Tools gt Reset Host Port 2 Select the port to reset For example to reset controller A port 1 select A1 3 Click Reset Host Port Rescanning disk channels A rescan forces a rediscovery of disks and enclosures in the storage system If both Storage Controllers are online and able to communicate with both expansion modules
270. ws the following information Severity Critical A failure occurred that may cause a controller to shut down Correct the problem immediately Y Error A failure occurred that may affect data integrity or system stability Correct the problem as soon as possible Warning A problem occurred that may affect system stability but not data integrity Evaluate the problem and correct it if necessary Informational A configuration or state change occurred or a problem occurred that the system corrected No action is required e Time Date and time when the event occurred shown as yearmonth day hour minutes seconds in Coordinated Universal Time UTC Time stamps have one second granularity e Event ID An identifier for the event The prefix A or B identifies the controller that logged the event Viewing system status e Code Event code that helps you and support personnel diagnose problems For event code descriptions and recommended actions see the event descriptions reference guide e Message Information about the event Ef NOTE Ifyou are having a problem with the system or a vdisk check the event log before calling technical support Event messages might enable you to resolve the problem When reviewing events do the following 1 For any critical error or warning events look for recommended actions in the event descriptions reference guide Identify the primary events and any that might be the cau
271. xample if the retention count is 10 then the interval should be set to 10 minutes The default is 1 minute e Time Constraint Specify a time range within which the task should run Date Constraint Specify days when the task should run Ensure that this constraint includes the Start Schedule date e End Schedule Specify when the task should stop running Click Schedule Snapshots If processing succeeds the schedule is saved and can be viewed in the overview panel for the volume or system Deleting snapshots You can use the Delete Snapshots panel to delete standard and replication snapshots When you delete a snapshot all data uniquely associated with that snapshot is deleted and associated space in the snap pool is freed for use Snapshots can be deleted in any order irrespective of the order in which they were created AssuredSAN 3000 Series RAlDar User Guide 65 A CAUTION Deleting a snapshot removes its mappings and schedules and deletes its data A CAUTION Ifa replication snapshot s type is shown as a sync point for its replication set consider carefully whether you want to delete that snapshot If you delete the current sync point then if a replication set failure occurs a prior sync point will be used If you delete the only sync point then the next replication will require a full sync to be performed all data to be re replicated from the primary volume to a secondary volume To delete snapsho
272. y snapshots e Under the secondary vdisk e The secondary volume s designation is changed from Secondary Volume to Volume e The primary volume is removed e Any replication images are replaced by snapshots Ef NOTE Normally if you want to remove a replication set you must select its primary volume However if the primary volume is inaccessible you can set the secondary volume to be the primary volume as described in Changing the primary volume for a replication set on page 118 and then perform a Remove Replication Set operation Suspending replication If the system is licensed to use remote replication you can suspend the current replication operation for a selected a replication volume You must perform this task on the system that owns the secondary volume Once suspended the replication must be resumed or aborted to allow the replication volume to resume normal operation To suspend replication 1 In the Configuration View panel right click a local replication volume and select Provisioning gt Suspend Replication 2 In the main panel click Suspend Replication A message indicates whether the task succeeded or failed Resuming replication If the system is licensed to use remote replication you can resume a suspended replication operation for a selected replication volume You must perform this task on the system that owns the secondary volume To resume replication 1 In the Configuration View panel right click a local re

AssuredSAN 3000 Series RAIDar User Guide

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