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SAN Array Manager User Guide

1. 4 26 SAM Client User s Guide Note Configuration In Manual Configuration Add Logical Drive and Expand Array function very similarly to what was shown above In each of these two cases however RAID Assist shows you the disk arrays and logical drives and allows you to add to the configuration without risking existing data SANmapping in SANArray Manager SANArray Manager implements SANmapping by allowing the user to select the topology used by the controller s the ports to be used the Host to Logical Drive Mapping for each logical drive and the Logical Drive to LUN Mapping for each logical drive Figure 4 24 shows an example of SANmapping SANmapping is most useful when the controller system is operating in a multiple host environment This allows logical drive access to be controlled on a host by host basis Hosts are identified by the World Wide Names WWNs Manual Configuration New Configuration soft Controller 0 1 Welcome 2 Disk Arrays 3 Logical Drives 4 SAN Mapping Topology Port Selection muti T1D x i ea l GIFT 20 00 00 e0 8b 01 Od 3e 20 00 00 e0 8b 01 48 88 20 00 00 e0 8b 01 7e 88 Not Connected m Host To Logical Drive Mapping HostsHBAs OL i taf al s sl xX xXX XX XX XX XX X XX XX XX X Connected Found Edit Hosts m Logical Drive to LUN Mapping Ji Enable All Hosts Lun Selection LF 0 Raid3 1282MB 0 1 Raid5 10
2. Power controller off and on Power controller off and on 912 Internal controller i960 processor error Internal controller has encountered i960 processor specific error Power controller off and on A 38 SAM Client User s Guide Table A 2 SANArray Manager Events Event Information ID Severity Description Details Actions 928 1 Internal controller Internal Power controller Strong ARM controller has off and on processor error encountered Strong ARM processor specific error Manual No SA67 0050 01 Overview A 40 SAM Client User s Guide Glossary ANSI American National Standards Institute a standards organization that promotes and facilitates understanding among qualified members for the implementation of agreed upon code and signaling standards and conformity ANSI represents the U S in the ISO International Standards Organization Applet Small application programs that are usually built into an operating system or a larger application program and designed to run from within another application The built in writing and drawing programs that come with Windows are sometimes called applets Applications that run in a web browser are often Java based applets See also Java Application Program A program designed to perform a specific function directly for the user or for another application program Examples of application programs include
3. Refer to the appropriate sections in the above mentioned manual for instructions on starting the Global Array Manager Server component under any of the supported network operating systems Client Component Under Linux Windows 2000 Windows NT 4 0 Windows 98 Windows Me or Windows XP you are ready to start the SANArray Manager Client once you have installed the client on your workstation see Installation on page 2 1 To start SAM Client e Under Windows 2000 Windows NT 4 0 Windows 98 Windows Me or Windows XP to start the SANArray Manager Client software select Start gt Programs gt Mylex SANArray Manager Client e Under Linux type sam If at least one server group and file server are defined the opening screen appears see Figure 3 1 If not the Define Server Groups dialog box appears see Navigating SANArray Manager Client on page 3 2 Manual No SA67 0050 01 3 1 Navigating SANArray Manager Client Navigating SANArray Manager Client This section describes the navigating features and options that the SANArray Manager Client provides Button Controls Dialog boxes throughout the SANArray Manager Client have a series of control buttons Some examples of these include Click this button to apply the settings made in the dialog box OK Cancel Click this button to cancel the settings made in the dialog box Click this button to confirm the action identified in the dialog box Click this b
4. 20 00 00 e0 8b 01 7e88 x Not Connected Connected Found Edit Hosts Figure 4 25 Host to Logical Drive Mapping Identity The host identity is the WWN World Wide Name of the Host Bus Adapter HBA of a server on the fibre channel loop An attempt is made to find the servers Servers with multiple HBAs have an ordinal number in parentheses after the name IP address identifying the HBA HBAs will only show Found if the server with the HBA is running GAM Server and is accessible on the network See Modifying Preferences on page 3 24 for a control on the server search Manual No SA67 0050 01 4 29 Running RAID Assist The Change Host Tag button allows you to change the format of the name for connected Hosts and HBAs You may toggle through the name IP address WWN and host bus target LUN of the HBA The Edit Hosts button opens a dialog box that allows you to make changes to the WWN table see Figure 4 26 Edit Hosts 12 xi Host List MERES o Ce 20 00 00 e 8b 01 Od 3e x x 20 00 00 e0 8b 01 48 88 i X X X x x xX 200000e08b017e88 X X X X X X X Not Connected Connected Found Change Host Tag Cancel Figure 4 26 Edit Hosts Dialog Box The following Edit Hosts options are available e The Change Host Tag button only applies to found hosts not connected hosts This feature allows you to change the format of the name for found hosts and HBAs You may toggl
5. Enclosure Information Controller Options Intelligent BBU Scan Devices Advanced Functions gt Settings Preferences Figure 6 1 Select Initialize Logical Drives An Initialize Logical Drives dialog box opens Figure 6 2 Initialize Logical Drives m Uninitialized Logical Drives m Initialized Logical Drives Initialize Drive Size MB Initialize Drive Size MB 3 16788 O 5 16776 Select All Gear Al Select All Clear All Total E Drives ooo MB Cancel Figure 6 2 Initialize Logical Drives Dialog Box 6 2 SAM Client User s Guide Maintenance Processes To select logical drives to initialize check the desired checkboxes next to the appropriate logical drive Click The OK button or press the Enter key to begin the initialization A Warning message dialog box will open for confirmation Figure 6 3 Initialization Confirmation Dialog Box Type YES to confirm the initialization and click the OK button or press the Enter key The Long Op Status Dialog box opens Figure 6 4 Long Op Status Figure 6 4 Long Op Status Dialog Box This dialog box is used to monitor and or cancel initializations See Process Status Monitoring on page 5 18 for more information Manual No SA67 0050 01 6 3 Running a Logical Drive Consistency Check Running a Logical Drive Consistency Check Note Depending on the Logical Drive size
6. gt Settings Preferences Figure 3 17 Select Sign On Inte Sign on proceeds as follows 1 The username and password are encrypted and sent to the GAM Server running on the selected server host 2 The GAM Server receives and decrypts the username and password and makes an operating system specific call to validate them per the server host s operating system s user accounts 3 After the username and password are validated by the operating system the username is compared to the string gamroot If the username matches sign on is granted Administrator access level 4 The GAM Server notifies SAM Client of the success or failure of the sign on attempt and whether or not that sign on attempt has been granted Administrator access level Do the following to sign on to a server 1 Type a username and password of your choice that are previously enabled on the server host This will provide access privileges appropriate for the username 2 Check the box labeled Remember password for this session if you want SAM to refrain from Sign On messages each time you select a server during this session which uses the same password This amounts to an automatic sign on to additional servers and should be used with caution 3 20 SAM Client User s Guide Startup amp Navigation Uncheck the box if you want to retain the option of signing on to each server you wish to access individually 3 Cl
7. 02 SAM Client User s Guide Configuration True Verification Of Data Verifies accuracy of the data with data comparison Write Through Verify During error handling this turns on Force Unit Access for reads and writes Set the following internal options Operational Fault Management Allows the controller to take autonomous actions when a failure occurs WARNING Do not disable this function unless specifically instructed to do so as part of a troubleshooting diagnostic activity Automatic Rebuild Management Works in conjunction with SAF TE disk array enclosures to detect removal of a failed drive and perform an automatic rebuild after installation of a replacement drive Coalesce Device Queues Joins data from adjacent I Os into a single T O to improve performance Queue Limit Maximum allowed queue depth for tagged commands to each attached drive Settings are from 1 no tags to 230 Set the following Automatic Reboot on Failure Options Enable Enables the Reboot On Failure feature Reboot Limit Sets a limit of how many times a controller will attempt to automatically reboot to recover from firmware detected errors Settings are from 0 to 15 Re arm Interval Allows a minimum number of times that the controller must run before automatically re arming itself with a new set of automatic reboots Select a time interval from the drop down list Manual No SA67 0050 01 4 5 Setting and Modifying Cont
8. Cancel Figure 4 8 RAID Assist Welcome Dialog Box Manual No SA67 0050 01 4 11 Running RAID Assist In the RAID Assist Welcome dialog box Figure 4 8 do one of the following e Click the Automatic Configuration button if you want to provide only minimal input and allow RAID Assist to set up an optimal configuration automatically or e Click the Assisted Configuration button if you want RAID Assist to lead you step by step through the configuration or e Click the Manual Configuration button if you want full control over your configuration setup or e Click Cancel if you want to exit RAID Assist without any changes Automatic Configuration Automatic Configuration provides two options e New Configuration Sets up a new configuration on the controller deleting the previous configuration and data if any e Add Logical Drive Sets up additional arrays logical drives leaving the existing array s intact At least one array must be configured on this controller and unconfigured capacity must exist For example open New Configuration as shown in Figure 4 9 Automatic Configuration 2 x m Data Overwrite Method Create a new configuration If there is an existing configuration it will be overwritten and all data will be lost m Data Retain Method Utilize the remaining available space in an existing array or create Add Logical Drive a new array using unconfigured disk drives Exist
9. The host port bus width for data transfers and bus speed MB sec The number of physical devices detected The number of logical drives configured on this controller Host Connection Information HBA number channel ID and target ID Manual No SA67 0050 01 5 5 Physical Device and Logical Drive Monitoring e The status of a partner controller in a dual active pair e Whether the controller is set up to operate as part of a dual active fault tolerant pair e The port number port ID and World Wide Name if any of this specific controller and its partner controller Click the Kill Partner button to cause this controller s partner controller to be placed in reset The controller must be in dual active for this to happen Click the Relinquish Partner button to cause this controller s partner controller to return to an operating state after a kill Click the Controller Options button to view a dialog box of user definable controller parameters Click the Close button or press the Enter key to close the Controller Information window Physical Device and Logical Drive Monitoring This section describes how the SANArray Manager Client monitors physical devices and logical drives Displaying Device Information The Controller View window details which physical devices are associated with each controller channel Each stack of drives represents the physical drives connected to a single channel on the controller A physical de
10. e Absent The fan is not installed or has failed in an undetectable way e OK The fan is optimal Fan speed is shown as either Stopped Low or High Speed is not shown for SAF TE enclosures e Failed The fan is installed but has failed The status of the power supplies in the enclosure Each power supply is designated with a number The status values are e Absent The power supply is not installed or has failed in an undetectable way e OK The power supply is optimal e Failed The power supply is installed but has failed The status of the temperature sensors in the enclosure Each temperature sensor is designated with a number The status values are e Absent The temperature sensor is not installed or has failed in an undetectable way e OK The temperature sensor is optimal Two additional items are displayed with this state Celsius Temperature range for SES is 19 to 235 range for SAF TE is 10 to 245 Over Temperature Warning OT e Failed The temperature sensor is installed but has failed Manual No SA67 0050 01 5 15 Enclosure Monitoring and Management The status of the alarms in the enclosure Each alarm is designated with a number The status values are e Absent The alarm is not installed or has failed in an undetectable way e OK The alarm is optimal One additional item is displayed with this state ON the alarm is currently on or sounding e Fa
11. Data Table failed startup option parameters on the system 50 3 Physical disk status Physical disk None changed to offline status changed to offline 51 3 Physical disk status Physical disk None changed to Hot status changed Spare to Hot Spare SAM Client User s Guide Table A 2 SANArray Manager Events Event Information ID Severity Description Details Actions 52 3 Physical disk status Physical disk None changed to rebuild status changed to rebuild 53 3 Physical device ID Physical device None did not match ID did not match 54 3 Physical disk failed Physical disk Reseat the to start failed to start physical disk Replace the physical disk 55 3 Physical disk Physical disk None negotiated different negotiated offset than different offset configured than configured 56 3 Physical disk Physical disk None negotiated different negotiated bus width than different bus configured width than configured 57 1 Physical disk Physical disk Replace the missing on startup missing physical drive or power on all enclosures 58 3 Rebuild startup Physical disk Replace with a failed due to lower capacity not physical disk physical disk sufficient for having sufficient capacity doing rebuild capacity 59 3 Physical disk is Physical disk Check Fibre switching from one removed or Channel loop channel to the other channel failed Replace physical channel disk if ne
12. Logical Drives 5 Optimization 6 Finish RAID Assist has completed the configuration You can view details of the configuration by clicking Details button If you are satisfied with the configuration as defined below click the Apply button to implement the configuration If you wish to redefine the configuration go to Welcome page and select Manual Configuration Configuration Summary Physical drives E Logical dives 1 Physical capacity 12408MB Logicalcapacity 8272 MB Hot spares ai RAID level RAIDS Stripe size BKB Cache line size 8KB Enable write cache No Initialize No lt Back Apply Cancel Figure 4 18 Assisted Configuration gt New Configuration gt Finish Examine the Configuration Summary for details about the configuration that RAID Assist will set up If you want to start over click the Welcome tab or Cancel button OR If you want to change your answers to any of the questions you were asked click the appropriate tab to return to that screen OR If you want to view the configuration before it is applied to the controller click the Details button You will be taken to an equivalent of the Disk Arrays page as shown in Manual Configuration except that you can only view and close the details window If you accept the configuration as presented click the Apply button or press the Enter key at the Finish page to apply the new configuration to the contro
13. Product Version _ DER ok SES 20000080e511e97e IBM DF 4000 R 0131 Figure 5 8 SES Enclosure Information Information Page Information Page Enclosure Information displays the following about the currently available enclosures e The status of each enclosure identified by an icon and an enclosure number 1 32 as well as one of the following expressed in text e OK All components are optimal e Critical Some component has failed one more failure may result in data loss e Failed A failure has occurred that may result in data loss e The enclosure type SES SAF TE The World Wide Name or Inquiry WWN INQ for the enclosure e For SES The World Wide Name as 8 hex bytes e For SAF TE The first 8 bytes of the Inquiry command s data e The vendor identification 1 An undetermined enclosure shows as a zero 0 In this case all information is presented as if there is a single enclosure with all the fans power supplies etc Manual No SA67 0050 01 5 13 Enclosure Monitoring and Management e The product identification e The product revision level e The number of drive slots in the enclosure cabinet Highlight an enclosure and the Locate button will become available Click the Locate button to blink the LEDs of all of the physical drives in the enclosure to reveal its location A locate enclosure dialog box will open click OK or press the Enter key to end the locate operation Click t
14. Restripes data in your array across additional unconfigured drives to expand the capacity of the array For example open New Configuration as shown in Figure 4 20 Manual Configuration Figure 4 20 Select New Configuration The Disk Arrays tab in Manual Configuration is where you begin to configure your unused disk drives lower left Figure 4 21 Manual No SA67 0050 01 4 23 Running RAID Assist Manual Configuration New Configuration 204 32 130 202 Controller 2 1 Welcome 2 Disk Arrays 3 Logical Drives 4 SAN Mapping Disk Arrays MB Logical Drives MB PA Unused Disk Drives MB l al l el el Add Array Make Spare Clear All Cancel Figure 4 21 Manual Configuration Disk Arrays Each disk array is represented by one section in the Disk Arrays area of the screen upper left Figure 4 21 Logical drives if any have already been configured display on the right side Do the following 1 Select an unused drive and drag it to the Disk Array AO section The drive will be part of a disk array referred to as A0 2 Select other unused drives and drag them to Disk Array AO or click the Add Array button to create a row for Disk Array A1 then A2 A3 etc then drag unused drives to A1 if you so desire Note Multiple drives can be added by holding down Ctrl while clicking drives then dragging the selected set to a Disk Array section 3 If you want to manually con
15. cecccccseeeceeseeeseeeeeseeeeeseneeeneneeseseeeneeeeenes 3 26 Chapter 4 Configuration Introduction siii Ae i ene le 4 1 Setting and Modifying Controller Options ceceeeeeeeeeeeeeeeeeeneees 4 2 Basic Controller Options eceecceesceeeceeeeeeeneeeneeeeeeeeaeeseeeeseeeeas 4 2 Advanced Controller Options ecceseesseseeeeeeeeeeeeeeeeseeeeneeraes 4 4 Expert Controller Options ceeceesceeeceeeeeeeeeeeeeeeeeeteeeseeeeneeeas 4 6 Fibre Controller Options eceecceeseeeeseeeeeseeeeeeeeeesieeeeeeeeeeeees 4 8 Speed Controller Options 00 eeeeceeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeetens 4 9 Recording Your Changes cccccesceeseeeeeeeeeeeeeeeeeneeseeeeeeeeaees 4 10 Running RAID ASSIst seisccncee nian e ee est 4 10 Entering RAID ASSISt nersini i ai 4 11 Automatic Configuration ceceeeeseeeeeeeeeseeeeeeeeeesseeeeneeenreeee 4 12 Assisted Configuration ceceesceesceeeeeeeereeeeeeeeeeeeeteaeeeneeeneeee 4 14 Fault Tolerance Tab ricrea 4 16 Logical Drives Talo primitor 4 19 Optimization Tab eea aate onae eaa oea eile Aan Rea teas 4 20 Finish Tabip ane eo wailed SaR TA 4 21 Manual Configuration ccceecceseceeeeeeeeeeseeeeeaeeeeeeteaeeeeeeneeeeaees 4 22 SANmapping in SANArray Manager cecceeeeeeeeeeeeeeeeeeees 4 27 Selecting the Topology cecceeseeseeseeeeeeeeeeeeeseeeeneeeseeteaes 4 28 Selecting the Portiers tiure iaae eiaeiiai 4 28 Logical Drive to LUN Mapping seeeese
16. corruption 334 4 Enclosure services None ready 335 4 Access to Module None temperature sensor containing has been lost temperature sensor has been removed 336 4 Access to power Module None supply status establishing information has connectivity has been lost been removed 337 4 Access to fan status Module None information has establishing been lost connectivity has been removed Manual No SA67 0050 01 Overview Table A 2 SANArray Manager Events ID Severity Description Details Actions 338 Physical disks in Enclosure Turn off the enclosure being temperature is enclosure and spundown too high repair problem Fan failure causing critical Sensor failure over temperature condition Once the problem is repaired recover by power cycling the entire system including controllers 339 Temperature is Room Inspect the below working limit temperature too enclosure low Sensor environment for failure proper operation repair as required Increase room temperature as required 340 Temperature is Room Inspect the under safe limit temperature too enclosure Failure imminent low Sensor environment for failure proper operation repair as required Increase room temperature as required 384 Array management The server If you did not server software system or array expecta system started successfully management reboot utility server inv
17. 0 0 eeeeeeeeneeeeeneeeeeneeeeeneeetenaeeeenaeeteneeees 6 14 Performing a Controller Shutdown ecceeseeeeeeeeeeeeeeeneetteeeneeeenees 6 17 Deleting a Logical Drive 0 eee eeseeeesneeeeeneeeeeneeeseeeeeenneesenaeereneeees 6 19 Appendix A Event Information OVERVIOW sensa Oe cect eee ati hee Hal Atal aN A 1 Glossary Index viii SAM Client User s Guide Chapter 1 Introduction Overview SANArray Manager SAM Client software manages the SANArray family of External RAID controllers This manual provides information on SAM Client for Software Kit 5 Software Kit 5 supports new server features for the following controllers e SANArray FFx FFx 2 If you are using Mylex controllers that are not listed above refer to the SANArray Manager Client Installation and User Manual for Software Kit 4 SAM Client software is used to e Monitor manage maintain and configure Mylex Disk Array Controllers and the physical and logical drives that are connected to these controllers even across remote servers e Monitor and manage physical devices that are connected to these adapters even across remote servers Manual No SA67 0050 01 1 1 Overview SANArray Manager Components SAM has two components e Global Array Manager GAM Server component which is part of the Mylex Disk Array Controller Software Kit e SAM Client component Each component handles specific tasks based upon the selected function Configurat
18. 3 Configuration on The controller None disk converted converted a down level configuration on disk 805 3 Configuration on The controller None disk import failed could not import the configuration 806 4 A debug dump The controller Contact field exists on this aborted and support for system created debug assistance in dump retrieving the information data 807 4 A debug dump The partner Contact field exists on this controller support for system aborted and assistance in created debug retrieving the dump data information Manual No SA67 0050 01 A 37 Overview Table A 2 SANArray Manager Events ID Severity Description Details Actions 808 809 No valid Comfiguration On Disk COD found No valid SAN map found in Configuration On Disk COD No physical disk contained a valid configuration on disk area Physical disks were never written with COD Physical disks were replaced while the controller system was Offline No physical disk contained a valid SAN map in its configuration on disk area Physical disks may have been imported from a system that did not use SAN Mapping Investigate if this is unexpected Investigate if this is unexpected 896 897 Internal controller hung Internal controller firmware breakpoint Internal controller is in the hung state Internal controller has encountered a firmware breakpoint
19. Mylex RAID controller See also Storage Device Logical Drive States A logical system drive can be Online Critical or Offline Notice that the term online is used for both physical and logical drives LUN Logical Unit Number a SCSI representation of a system drive on a given channel and target ID This may be a single device or an array of devices configured to behave as a single device LUN Mapping A method whereby a LUN ID is assigned to a system drive allowing a LUN to be made accessible through specific controllers and ports using system drive affinity LVD Low Voltage Differential a form of SCSI signaling introduced with Ultra2 SCSI Fast 40 SCSI LVD uses data high and data low signal lines to increase transmission distances over those of single ended conventional SCSI signaling lines LVD allows for cable lengths of up to 12 meters approximately 39 feet with up to 15 drives LVD also lowers noise power usage and amplitude LVD differs from conventional differential signaling in that only positive and negative values are distinguished not voltage levels Other advantages are Glossary 10 SAM Client User s Guide Glossary that LVD devices consume less power and can sense single ended devices on the bus and revert to single ended signaling Devices need to be Ultra2 SCSI LVD drives in order to take advantage of the LVD signaling Mylex AcceleRAID eXtremeRAID and DAC FL controllers are LVD controlle
20. Replace the physical disk Contact your service representative Physical disk PFA condition found This disk may fail soon Physical disk predicted some future failure External RAID logical device may have become critical Refer to the enclosure manufacturer s service manual An automatic rebuild has started A rebuild has started A physical disk failed and spare was available A physical disk failed and no spare was available A spare was added Client started the rebuild on user s request User replaced the failed device and raidbld started the raidbld None None SAM Client User s Guide Table A 2 SANArray Manager Events Event Information ID Severity Description Details Actions 7 4 Rebuild is over Rebuild None completed successfully 8 3 Rebuild is canceled User canceled Restart the the rebuild rebuild if Higher priority required rebuild started 9 2 Rebuild stopped Due to some Try rebuild with error unknown error again on the controller rebuild failed 10 2 Rebuild stopped New physical Replace the with error New disk failed New disk physical disk failed physical disk may not be compatible with MDAC hardware firmware 11 2 Rebuild stopped At least one It may not be because logical more physical possible to drive failed disks failed in the recover from this array error Bad data table Contact your ove
21. The connection None System is to the controller disconnecting from has been lost this controller 396 4 Controller powered Controller was None on removed from the system Controller has been powered off 397 4 Controller is online New controller None has been installed 398 0 Controller is gone Controller was None System is set offline disconnecting from this controller 399 3 Controllers partner Controller was If you did not is gone Controller is set offline expect this now in failover investigate mode 400 4 Battery User started a None reconditioning is started battery reconditioning SAM Client User s Guide Table A 2 SANArray Manager Events Event Information ID Severity Description Details Actions 401 4 Battery Battery None reconditioning is reconditioning finished completed successfully 402 4 Battery User canceled Restart the reconditioning is the battery battery canceled reconditioning reconditioning if required 403 1 Installation aborted Equipment Re establish improperly proper arranged while arrangement powered off 404 1 Controller firmware Replacement Reload controller mismatch controller with firmware down level firmware installed 405 3 Battery removed Battery Reinstall the physically battery removed 406 1 WARM boot failed Memory error Restore data detected during from a backup WARM boot scan
22. Version supported Drive channel transfer speed and bus width device state Manual No SA67 0050 01 5 7 Physical Device and Logical Drive Monitoring Disk Device Information Channel 0 Target 9 Lun 0 Device Inquiry Data Vendor 1 SEAGATE Product ST39102FC Revision 0007 Bus Width ull Sync No Soft Reset No ANSI Version SCSI 2 Linked Yes CmdQue Yes Serial LJ494857 Loop ID Aw Device State Nego Transfer Speed 100 MB Sec Status 4 On Line Nego Bus Width PAA Sector Size 512 Bytes Physical Size 8683 MB Config Size 8376 MB p Device Errors Enclosure Soft Errors 0 Parity Errors 0 PESEE r oO Hard Errors 0 Misc Errors 0 Make HotSpare Make Online Make Offline Repuid Prepare to RETIOYE i i Figure 5 5 Disk Device Information Device Information Disk Drive 5 8 The vendor or source of the drive The drive s product identification such as ST39173FC The revision level of the firmware in the drive The drive channel bus width in bits Whether the following parameters are set to Yes or No Sync Soft Reset Linked Command Queuing Loop ID number ANSI Version supported Disk drive serial number The physical capacity of the disk device in MB The drive channel negotiated transfer speed MB sec and negotiated bus width The configured size of the disk device in MB Sector size usually 512 bytes SAM Client User s Guide Monitoring e T
23. When enabled each controller shares its node name with its partner controller and those names are used through all phases of failover and failback e PCI Latency Control Controls the amount of data each host port Fibre Protocol Processor can burst across the primary PCI bus before relinquishing bus ownership Settings are Short Medium Long A setting of Long is recommended e Frame Control Allows adjustment of the FC chip s frame size Hard Loop IDs Enables hard loop IDs on a controller If the requested 48 SAM Client User s Guide Configuration ID is not available an available loop ID number will be automatically assigned Some Fibre HBAs work better with this Speed Controller Options The Speed Controller Option is only available if you are using a 2Gbps capable fibre controller In the Speed Controller options dialog box Figure 4 5 you have several options Controller Options Controller 0 Port 0 AutoNego Controller 0 Port 1 AutoNego Controller 1 Port 0 2 Gb sec Controller 1 Port 1 AutoNego Figure 4 6 Speed Controller Options Dialog Box Set any of the following Host Ports options e Host Ports Lists all of the host ports on the selected server One or more host ports may be selected simultaneously for making Speed changes Once a selection is made from the Host Ports list the Auto Negotiate 1Gbps and 2Gbps radio buttons are enabled e Select All Selects all listed host ports as recipients
24. additional logical drives now or later type a smaller number to reserve the desired amount of capacity Manual No SA67 0050 01 4 25 Running RAID Assist 4 Check the Write Cache box if you want this logical drive to use Write Back caching This improves performance but puts data at risk You should have a battery backup unit or uninterruptable power supply if selecting this feature 5 Check the Init Drive box if you want this logical drive to be fully initialized at the conclusion of the configuration It is recommended that you check this option unless the controller is capable of background initialization 6 Select a stripe size Available only when defining the first logical drive 7 Click the Add Drive button to register your new logical drive Repeat the process above to set up additional logical drives then click the SAN Mapping tab when you are done 8 Click the SAN Mapping tab to continue with configuration see SANmapping in SANArray Manager on page 4 27 An example of a completed Manual configuration is shown in Figure 4 23 Manual Configuration New Configuration 192 9 16 44 Controller 0 1 Welcome 2 Disk Arrays 3 Logical Drives 4 SAN Mapping Disk Drive Logical RAID Capacity MB Capacity Write Init Stripe Array No Drives Level Logical Physical Utilization Cache Drive Size Add Drive Delete Drive Clear All Cancel Figure 4 23 Sample Manual Configuration Just Before Apply
25. and servers Adding a Server Group to the Server Group List Open Define Server Groups as shown in Figure 3 14 This is not necessary if you are starting SANArray Manager and no Server Groups are defined The Define Server Groups dialog box will display automatically Administration Define Server Groups RAID Assist Initialize Logical Drives Eontolenintormaton Enclosure Information Controller Wptons Intelligent BBU Scan Wevices Advanced Functions gt Settings Preferences Figure 3 14 Select Define Server Groups In the Define Server Groups dialog box Figure 3 15 do the following 1 Click the Add button under the Server Groups section of the dialog box Define Server Groups r Server Groups r Servers 2x 9 17 8168 Figure 3 15 Define Server Groups Dialog Box 3 16 SAM Client User s Guide Startup amp Navigation 2 In the Adding Item dialog box type the name of the server group that you are adding Naming a server group is a way of identifying a site or collection of related server computers For example names like PayRoll or Eastern Sales can be used 3 Click OK or press the Enter key The Define Server Groups dialog box will reappear with the newly defined server group added Note The Discovered group contains a list of all server hosts that are sending events to the client Adding a Server to the Server Groups Li
26. any other time may result in data loss Click the Locate button to blink the LED of the physical devices that comprise the Logical Drive to reveal their location Click OK or press the Enter key to end the locate operation and return to normal status Click the Close button or press the Enter key to close the dialog box Manual No SA67 0050 01 5 11 Enclosure Monitoring and Management Enclosure Monitoring and Management The Controller View window contains an Enclosure button with a status light A Green square indicates OK a Yellow circle indicates Critical status and a Red X indicates failed status You can monitor information status and additional details about SES and SAF TE enclosures by clicking the Enclosure button in Controller View Alternatively you can select Enclosure Information from the Administration menu as shown in Figure 5 7 Administration Gian Wh Define Server laroups RAID Assist Initialize Logical Drives Controller Information En clo sure Information Controller Options Intelligent BBU Scan Devices Advanced Functions gt Settings Preferences Figure 5 7 Select Enclosure Information The Enclosure Information dialog box is displayed with the Information page active Figure 5 8 5 12 SAM Client User s Guide Monitoring Enclosure Information Lx Information Details Settings Enclosure Status Type WAWN ING Vendor
27. but does not stop the current action Conditioning the Battery A full battery condition cycle consists of discharging and recharging the battery The condition cycle must start with a fully charged battery Normally the battery is automatically recharged but in a new system or a system that has been subjected to a power outage recharging may be necessary and may take several hours Note Do not interrupt the reconditioning process The system administrator must initiate the condition cycle manually The condition cycle must complete without an interruption of power In addition the operator must not interrupt the cycle by initiating a fast charge or other action If the cycle is interrupted for any reason the batteries must be recharged and the recondition process must be restarted Note During the reconditioning write back cache mode will be disabled This may slow normal operations Therefore schedule this operation accordingly To ensure that the battery is fully charged and properly conditioned 1 Choose Intelligent BBU from the Administration menu if the BBU dialog box is not currently displayed A Caution The BBU dialog box applies only to the selected controller To see the partner controller s dialog box select the partner controller 2 Make sure the Charge Level is 100 If the battery is currently charging do not continue until the Charge Level is 100 Manual No SA67 0050 01 5 25 Battery B
28. drive expansion for FFx external controllers only e Expand Array allows array expansion for both PCI and FFx external controllers During the RAID set expansion process which includes re striping data from the old smaller RAID set to the new expanded RAID set the controller continues to service host I O requests NFS Network File System a client server application that lets a computer user view and optionally store and update files on a remote computer as though they were on the user s own computer See also File Server NOS Network Operating System an operating system that has special features for connecting computers and peripheral devices into a LAN NVRAM Non Volatile Random Access Memory a memory unit equipped with a battery so that the data stays intact even after the main power had been switched off Offline A Logical Drive is in an offline state if no data can be read from it or written to it Offline does not apply to physical disk drives System commands issued to offline logical drives are returned with an error status no operations can be performed on offline logical drives See also Logical Drive States Critical State and Online OLTP Online Transaction Processing computer processing where the computer responds immediately to user requests Glossary 12 SAM Client User s Guide Glossary OS Operating System software that manages the system resources and provides the operating envir
29. gt RAID Assist Administration RAID Assist Initialize Logical Drives Controller Information Enclosure Information Controller Options Intelligent BBU Scan Devices Advanced Functions gt Settings Preferences Figure 4 27 Select RAID Assist 2 Select the Manual Configuration button then New Configuration to begin to configure a spanned disk array Figure 4 28 Manual No SA67 0050 01 4 33 Spanning in SANArray Manager Client RAID Assist x 1 Weleome Welcome to RAID Assist RAID Assist allows you to set up new configurations add logical drives to existing configurations and expand the capacity of existing arrays To get started with RAID Assist choose a configuration method below Creates an optimal configuration using all available 5 A drives with minimal user input Automatic Configuration Creates or modifies a configuration using a 2 p step by step question and answer format Assisted Configuration Creates or modifies a configuration using only information provided by the user Figure 4 28 Select Manual Configuration Note Automatic and Assisted configuration options do not allow spanning Creating a Spanned Disk Array 1 Click the Disk Arrays tab 2 Drag and drop the available disk drives from the Unused Disk Drives MB section to the existing disk array A0 Note Multiple drives can be moved by holding down C
30. it on Unlike a computer s random access memory RAM the data in ROM is not lost when Glossary 16 SAM Client User s Guide Glossary the computer power is turned off the ROM is sustained by a small long life battery in your computer Rotated XOR Redundancy XOR refers to the Boolean Exclusive OR operator Also known as Parity a method of providing complete data redundancy while requiring only a fraction of the storage capacity of mirroring In a system configured under RAID 3 or RAID 5 which require at least three SCSI drives all data and parity blocks are divided amongst the drives in such a way that if any single drive is removed or fails the data on it can be reconstructed using the data on the remaining drives In any RAID 3 or RAID 5 array the capacity allocated to redundancy is the equivalent of one drive RTC Real Time Clock a clock that keeps track of the time with its own power supply SAF TE SCSI Accessed Fault Tolerant Enclosure an open specification designed to provide a comprehensive standardized method to monitor and report status information on the condition of disk drives power supplies and cooling systems used in high availability LAN servers and storage subsystems The specification is independent of hardware I O cabling operating systems server platforms and RAID implementation because the enclosure itself is treated as simply another device on the SCSI bus Many other leading server
31. may have lost data duration longer logical drive than battery consistency capacity If needed User connected restore data from anew controller backup User connected anew BBU 256 1 Fan Failure Broken cable Replace fan connection Fan failure 257 4 Fan has been Cable is None restored connected properly Faulty fan has been replaced 258 1 Fan failure Cable Replace fan connection is broken Fan failure 259 4 Storage cabinet fan Management Refer to the is not present connection is enclosure broken manufacturer s Management service manual hardware failure Fan is not present 272 1 Power supply Broken cable Reconnect cable failure connection or replace the Power supply power supply as failure required 273 4 Power supply has Faulty power None been restored supply has been replaced A 20 SAM Client User s Guide Table A 2 SANArray Manager Events Event Information ID Severity Description Details Actions 274 1 Power supply Broken cable Reconnect cable failure connection or replace the Power supply power supply as failure required 275 4 Storage cabinet Management Refer to the power supply is not connection is enclosure present broken manufacturer s Management service manual hardware failure Power supply is not present 288 3 Over temperature Room Turn off the Temperature is temperature is system and above 70 degr
32. storage and RAID controller manufacturers worldwide have endorsed the SAF TE specification Products compliant with the SAF TE specification will reduce the cost of managing storage enclosures making it easier for a LAN administrator to obtain base level fault tolerant alert notification and status information All Mylex RAID controllers feature SAF TE SAN See Storage Area Network Manual No SA67 0050 01 Glossary 17 Glossary SANArray Server independent External RAID Controllers that provide fibre channel interface connections to loop or fabric topologies and dual redundant loops for continuous access to large data pools These controllers are designed for homogeneous and heterogeneous operating system setups in Storage Area Network environments SANmapping A feature of SANArray external controllers SANmapping manages drive allocation and access and is similar to the programmable LUN Mapping feature which is incorporated into this feature SANmapping is intended for use in configurations in which multiple host computers attach to one or more Mylex controllers or to a Storage Area Network SAN configuration SDRAM Synchronous Dynamic Random Access Memory a form of dynamic random access memory DRAM a type of memory used in computers that can be coordinated or synchronized to the clock speed of the computer Sector The unit in which data is physically stored and protected against errors on a fixed block archit
33. the username gamroot use of a password is highly recommended A password is mandatory if the server is running Windows XP Administrators have the capabilities of Guests and Users plus the full privilege to view and change the status and settings of the selected controller and other internal SAM settings Signing On To gain access to capabilities beyond Guest access level you must sign on to a server host Double click a host icon in the Global Status View Controller View must be closed first e The Sign On dialog opens if you have never signed on during this session or if you did not check the Sign On dialog s Remember password box on the previous sign on see Figure 3 16 e If you have previously signed on and did check the Remember password box then the previously entered username and password will automatically be used for this new sign on Sign On 2 x Server 204 32 130 202 Username gamroot Password l V Remember password for this session Figure 3 16 Sign On Dialog Box If the sign on fails the Sign On dialog will open to allow adjustment of the username and or password or you may open Sign On at any time as shown in Figure 3 17 Manual No SA67 0050 01 3 19 Signing On to a Server Administration Define N Groups RAID Assist rti Gical Dnves Eontra tormmanon Enclosure Information Gantraller Diptions BU Scan DEVICE Advanced Functions
34. word processors database programs Web browsers development tools drawing paint and image editing programs and communication programs Array Multiple disk drives configured to behave as a single independent disk drive See also Disk Array Asynchronous Data Transfer Data transfer not synchronized to a set timing interval Asynchronous devices must wait for a signal from the receiving device after each byte of data Compare with Synchronous Data Transfer Manual No SA67 0050 01 Glossary 1 Glossary Automatic Rebuild Mylex controllers provide automatic rebuild capabilities in the event of a physical disk drive failure The controller performs a rebuild operation automatically when a disk drive fails and both of the following conditions are true A standby or hot spare disk drive of identical or larger size is found attached to the same controller All system drives that are dependent on the failed disk drive are configured as a redundant array RAID 1 RAID 3 RAID 5 or RAID 0 1 During the automatic rebuild process system activity continues however system performance may degrade slightly Automatic Switchover See Failover Background Initialization Where the initialization process of a disk array takes place in the background allowing use of a disk array within seconds instead of several hours Also known as Immediate RAID Availability Benchmarks A set of conditions or criteria against which a product o
35. 1 2 3 8 3 10 3 14 4 31 options 4 10 starting 4 11 welcome 4 12 RAID EzAssist G 15 RAID Level 4 25 5 11 RAID Levels G 15 RAID Migration G 16 RAM G 16 Read Ahead Cache G 16 Rebuild 6 6 Index 4 Rebuild Rate 4 3 Rebuild Status 5 19 Recovery G 16 Redundancy G 16 Relinquish Partner 5 6 Replacement Table G 16 Requirements 1 3 client hardware and software 1 3 Reset Propagation 4 7 Restrict Reassign 4 4 Retrieve Debug Dump 3 12 6 14 ROM G 16 Rotated XOR Redundancy G 17 RTC G 17 S SAF TE G 17 SAF TE Use of UPS 4 4 SAMCL LOG 5 2 SAN G 17 SANArray Manager Client 1 1 1 2 button controls 3 2 dialog boxes 3 2 exiting 3 15 opening screens 3 3 security 3 18 spanning 4 33 SANArray G 18 SANMapping apply configuration 4 32 cancel configuration 4 32 clear all LUN assignments 4 32 edit hosts 4 30 host states 4 31 host to logical drive mapping 4 29 logical drive to LUN mapping 4 28 restore configuration 4 32 selecting the port 4 28 selecting the topology 4 28 set sequential 4 32 SANmapping in SANArray Manager 4 27 SANmapping G 18 SAM Client User s Guide Save Configuration 3 9 Scan Devices 3 12 3 14 SDRAM G 18 Sector G 18 Security Access Level guest 3 18 Security Access Levels 3 18 administrator 3 19 guest 3 18 user 3 18 Segment Size G 18 Selected File Server 3 4 Sequential Delay 4 3 Sequential I O G 18 Server G 18 Server Groups 3 16 Server Selection Box 3 4 SES enclosure 6 12 SES Enclosure Informa
36. 10 LUN Mapping G 10 LVD G 10 M M O R E G 11 Maintenance 1 2 Manual No SA67 0050 01 Index Maintenance Processes 6 1 add an enclosure 6 12 consistency check 6 4 controller shut down 6 17 device rebuild 6 6 logical drive initialization 6 2 retrieve debug dump 6 14 upgrading firmware 6 8 Manual Configuration 1 2 4 10 disk arrays 4 23 4 25 example 4 26 logical drives 4 25 options 4 22 Megabit G 11 Megabyte G 11 Menubar 3 3 3 9 Menus 3 9 administration 3 10 file 3 9 help 3 13 view 3 10 window 3 13 Mirrored Cache G 11 Mirroring G 11 Monitoring 1 2 5 1 battery backup unit 5 22 BBU status 5 22 consistency check 5 20 consistency check status 5 20 controllers 5 4 enclosures 5 12 events 5 2 expand capacity status 5 21 physical and logical drives 5 6 process status 5 18 rebuild status 5 19 Multi port Reset 4 7 N Navigating SANArray Manager Client 3 2 New Configuration 4 12 4 14 4 22 NFS G 12 Index 3 No Pause On Controller Not Ready 4 6 NOS G 12 NVRAM G 12 0 Offline G 12 OLTP G 12 On Q Full Give Busy 4 6 Open Configuration 3 9 Operational Fault Management 4 5 OS G 13 Over Temperature Shutdown 4 7 5 17 Overview 1 1 2 1 A 1 P Parity G 13 Parity Check G 13 Partitioning G 13 Physical Device G 13 Platform G 13 Plug and Play G 14 Preferences 3 12 alarm setup 3 23 PROM G 14 Protocol G 14 Q Queue G 14 Queue Limit 4 5 R RAID G 14 RAID Advisory Board RAB G 14 RAID Assist
37. 3 9 Coalesce Device Queues 4 5 Components of the Opening Screen 3 3 3 9 global status view window 3 4 log information viewer 3 5 SANArray Manager Window 3 3 Configuration 4 1 assisted 4 14 automatic 4 12 manual 4 22 Configuration Summary 4 13 4 21 Conservative Cache G 4 Conservative Cache Mode 4 4 Consistency Check 5 11 6 4 G 4 Consistency Check Status 5 20 Controller Information 3 11 5 4 Controller Model 5 5 Controller Options 3 11 4 2 5 6 basic 4 2 Controller Present Fault Select 4 7 Controller Selection Box 3 4 3 6 Controller Shutdown 6 17 Controller View 3 6 3 10 5 6 5 12 6 4 6 6 status icons 3 8 Critical State G 4 Cyclical Redundancy Check CRC G 4 Index 1 D DACCF G 5 Data Transfer Rate G 5 Debug 4 8 Debug Dump 6 14 Debug Port Speed 4 8 Debug Port Usage 4 8 Define Server Groups 3 10 3 16 Degraded Mode G 5 Device Driver G 5 Device Errors 5 9 Device Information 5 6 5 7 Device Inquiry Data 5 7 5 8 Devices Between Spins 4 3 Disk Device Information 6 7 Disk Failure Detection G 5 Disk Media Error Management G 5 Display Controller Information 3 14 Displaying add system 4 31 Drive Groups Drive Packs G 6 Drivers G 6 E ECC G 6 Edit Configuration 4 22 EEPROM G 6 Enclosure details page 5 14 information page 5 13 monitoring and management 5 12 Enclosure Discovery 3 12 6 12 Enclosure Information 3 11 5 14 EPROM G 6 Error Codes A 1 Event 3 5 description 3 5 device address 3 5 event ID 3 5 info
38. 64KB Cache line size 8KB Enable write cache No Initialize No lt Back Apply Cancel Figure 4 10 Automatic Configuration gt New Configuration gt Finish Do the following 1 Examine the Configuration Summary for details about the configuration that RAID Assist will set up 2 Ifyou want to start over click the Back or Cancel button or the Welcome tab OR If you want to view the configuration before it is applied to the controller click the Details button You will be taken to an equivalent of the Disk Arrays page as shown in Manual Configuration except that you can only view and close the details window Manual No SA67 0050 01 4 13 Running RAID Assist 3 If you accept the configuration as presented click the Apply button or press the Enter key at the Finish page to apply the new configuration to the controller A warning confirmation box appears as shown in Figure 4 11 WARNING x Changing configuration is data destructive If you want to proceed confirm by typing the word YES Cancel Figure 4 11 WARNING Before Applying the Configuration 4 Type YES and click OK or press the Enter key if you are sure you want to apply the new configuration and overwrite the old If you re not sure click Cancel Note In Automatic Configuration Add Logical Drive and Expand Array function very similarly to the New Configuration option In each case RAID Assist prepares an opti
39. 86MB 1 2 Raid0 1 8466MB 2 3 Raid0 4692MB 3 4 Raid3 7626MB 4 5 Raid0 1 6868MB 5 6 Raid0 16784MB 6 Set Sequential Clear All Restore Apply Cancel Figure 4 24 A SANmapping Scenario Manual No SA67 0050 01 4 27 Running RAID Assist Selecting the Topology SANmapping provides the user with two possible dual active controller configuration topologies Note Topologies are available as supported by the selected controller e MultiPort All ports are active This topology does not provide transparent failover failback and requires an alternate path driver in the host e Multi TID All ports are active This topology is supported on all Fibre products with ISP2200 and ISP2300 hardware This topology provides transparent failover failback and should not be used in conjunction with an alternate path driver Selecting the Port Host ports are made selectable based on the controller type and selected topology Some ports may therefore be unavailable for selection The host to logical drive list and logical drive to LUN list are displayed for the selected port Logical Drive to LUN Mapping Logical Drive to LUN Mapping associates a logical drive defined in the configuration with a LUN The Logical Drive to LUN mapping pane lists the logical drive LD RAID level and size and LUN assignment If no LUN is associated with the logical drive the LUN field is blank However it is required that a
40. Cancel to exit the dialog box The user may now power off the controller The battery will remain charged and will not supply power to the cache To abort a shutdown or return a controller to normal operation 1 2 Click Return to Normal Operation Click Cancel to close the dialog box then continue normal use of the controller through SANArray Manager To update status information from the controller during shutdown click Refresh 6 18 SAM Client User s Guide Maintenance Processes Deleting a Logical Drive This function allows you to remove one or more logical drives for the purpose of rearranging your storage space 1 2 Select Administration gt RAID Assist 3 4 Go to the Logical Drives tab and highlight the drive to be deleted Click Make backup copies of all user data on your array s Click Manual Configuration then Edit Configuration Delete Drive You can delete additional drives in the same manner and the available space can be reconfigured using the Manual Configuration options Restore user data to the desired logical drives Manual No SA67 0050 01 6 19 Deleting a Logical Drive 6 20 SAM Client User s Guide Overview Appendix A Event Information SANArray Manager provides information about drive and controller failures as well as maintaining an event log SANArray Manager classifies the events it records into five severity levels described in Table A 1 All event informati
41. D Levels Mylex disk array controllers support four RAID Advisory Board approved RAID 0 RAID 1 RAID 3 and RAID 5 two special RAID 0 1 and JBOD and three spanned RAID 10 30 and 50 RAID levels All DAC960 AcceleRAID and eXtremeRAID series controllers support these RAID levels See also Berkeley RAID Levels Level 0 Provides block striping across multiple drives yielding higher performance than is possible with individual drives This level does not provide any redundancy Level 1 Drives are paired and mirrored All data is 100 percent duplicated on a drive of equivalent size Level 3 Data is striped across several physical drives Maintains parity information which can be used for data recovery Level 5 Data is striped across several physical drives For data redundancy drives are encoded with rotated XOR redundancy Level 0 1 Combines RAID 0 striping and RAID 1 mirroring This level provides redundancy through mirroring JBOD Sometimes referred to as Just a Bunch of Drives Each drive is operated independently like a normal disk controller or drives may be spanned and seen as a single drive This level does not provide data redundancy Level 10 Combines RAID 0 striping and RAID 1 mirroring spanned across multiple drive groups super drive group This level provides redundancy through mirroring and better performance than Level 1 alone Level 30 Data is striped across multiple dri
42. Incompatible Obtain a controller attempted replacement compatible to stop the surviving controller replacement controller firmware or contoller hardware 512 4 System started The server If you did not system or array expecta system management restart utility server investigate started 513 4 Size table full Too much Remove unused physical disk size information size information from this system is defined A 34 SAM Client User s Guide Table A 2 SANArray Manager Events Event Information ID Severity Description Details Actions 514 4 User logged in An array None management utility user logged in on the server system 515 4 User logged out An array None management utility user logged out of the server system 516 4 Server alive Reconnected to None server Server rebooted 517 1 Lost connection to Lost network None the server or server connection to the is down server Server shut down 518 4 Automatic reboot Controller has None count has changed rebooted Automatic reboot has rearmed itself or was reconfigured 519 4 Battery test has Battery test has None started started 520 4 Battery test Battery test None complete complete 521 4 Battery test Battery test None canceled canceled 522 2 Battery test failed Battery test Replace battery battery bad failed battery bad 640 3 Channel failed Cable Plug in cable disconnec
43. MOVING DATA gt SMARTER SANArray Manager Client Software for Mylex External Controllers Installation Guide and User Manual for Software Kit 5 SA67 0050 01 fINYLEX MOVING DATA gt SMARTER SANArray Manager Client Software for Mylex External Disk Array Controllers Installation Guide and User Manual for Software Kit 5 Form Number SA67 0050 01 Copyright March 2002 All Rights Reserved All contents of this manual are copyrighted by IBM The information contained herein is the exclusive property of IBM and shall not be copied transferred photocopied translated on paper film electronic media or computer readable form or otherwise reproduced in any way without the express written permission of IBM Greetings Thank you for purchasing the Mylex SANArray Manager Client Software for Mylex External Disk Array Controllers Requests for technical information about this and other Mylex IBM products should be made to your Mylex IBM authorized reseller or Mylex IBM marketing representative Please Notice IBM Mylex DAC960 DAC1100 SANArray Manager Global Array Manager GAM SAM RAID Assist RAID EzAssist AcceleRAID eXtremeRAID and Predictive Failure Analysis PFA are trademarks or registered trademarks of International Business Machines Corporation and its subsidiaries Intel Pentium and Itanium are trademarks or registered trademarks of Intel Corporation Novell and NetWare are registered tra
44. Possible data loss 407 4 Battery calibration New battery None cycle started detected 408 4 Battery calibration Battery None cycle finished calibration completed successfully 409 4 Battery calibration User canceled None cycle was canceled the battery calibration cycle Manual No SA67 0050 01 A 29 Overview Table A 2 SANArray Manager Events ID Severity Description Details Actions 410 4 Battery is not The battery Install or connect present electronics are the battery present but a battery was not detected 411 3 Controller entered User changed If this was an conservative cache the setting unexpected mode Controller event refer to preparing for the enclosure shutdown manufacturer s Battery low service manual RAID expansion in process Over temperature condition No redundant power Power supply failure UPS ac failed UPS battery low 412 3 Controller entered Controller None normal cache mode entered normal cache mode 413 3 Controller device Controllerdevice None start completed start completed 414 3 Soft ECC error Faulty memory Replace memory corrected module module 415 3 Hard ECC error Faulty memory Replace memory corrected module module 416 4 Battery recondition Battery None suggested recondition suggested 417 3 Controller s partner Controller s None has been removed part
45. To test the application launch using the settings you ve input click Test This will result in all the enabled Launches being made with the command line substitution text taken from the Command Line Substitutions pane This is an aid in setting up the Launch Application system 4 When you are satisfied with the application you ve set up click OK or press the Enter key Modifying Preferences Open Preferences by clicking Administration gt Preferences on the menu bar as shown in Figure 3 18 Administration Sian Wr Deine Server Groups RAID Assist Initialize Logical Drives Controller Information Enclosure Information Controller Options Intelligent BBU Scan Devices Advanced Functions gt Settings Figure 3 21 Select Administration gt Preferences The Preferences dialog box opens Figure 3 22 3 24 SAM Client User s Guide Startup amp Navigation Preferences BEI T Enable Logical Drive Spanning 157 Data Pott I Enable Mixed Physical Drive Sizes M Enable Auto Configurator Upon Entry 159 Event Port I Add Default Hot Spare I Search All Groups for SAN Mapping Set Defaults 100 Log View Size Cancel Figure 3 22 Preferences Dialog Box Set any of the following Preferences e Logical Drive Spanning Enable for Logical Drive Spanning Note that when a logical drive is spanned across arrays those arrays cannot be expanded e Mixed Phys
46. YS1 CAB DATA1 HDR SETUP INS _SYS1 HDR LANG DAT SETUP LID _USER1 CAB LAYOUT BIN 1 If you intend to install GAM Server with SAM Client make sure TCP IP is installed and functioning properly 2 Insert the distribution CD ROM into your CD ROM drive AutoRun will cause the CD ROM to display the Mylex RAID Management Software Installation menu Figure 2 1 amp Mylex Solutions BBE RAID Management Software Installation MOVING DATA gt SMARTER gt Install Global Array Manager gt Create Software Diskettes gt Explore the CD gt View Product Information gt Read Documentation gt Install Adobe Acrobat Reader gt Exit Figure 2 1 Mylex RAID Management Software Installation Menu 2 2 SAM Client User s Guide Installation 3 Click the option called Install Global Array Manager Global Array Manager Setup will load the installation wizard 4 After a few moments the Welcome dialog box will display Figure 2 2 Click Next to proceed with the installation or click Cancel to end the installation procedure and return to the menu Figure 2 2 Welcome Dialog Box 5 When the IBM Software License Agreement screen appears click Yes to accept the terms of the agreement and continue If you click No you will not be allowed to continue SAM Client installation Manual No SA67 0050 01 2 3 Installing SAM Client with Windows Operating Systems The Select Components dialog box is displaye
47. a client server application the GAM Server software component provided in the Mylex Disk Array Controller Software Kit must be installed in one or more file servers in order for the SAM Client software component to operate Hardware and software requirements for installation and operation of the GAM Server component are described for each supported network operating system in the Global Array Manager Server Software Installation Guide and User Manual Client Hardware and Software PC with an 80486 or higher class processor and at least 4 MB of system memory Pentium processor and 16 MB of system memory are recommended Network interface card connected to a functioning network Appropriate network device drivers for the installed network interface card For proper client component connectivity installed and functioning GAM Server software component on the server under any of the supported operating systems CD ROM drive for CD ROM installation or 3 1 2 inch disk drive for diskette installation Fixed disk with at least 8 MB available free space 16 MB recommended Mouse or other pointing device A minimum display screen setting of 800 x 600 is recommended However we recommend setting the display at 1024x768 for optimum SAM client viewing For SAM Client component installation and operation Linux Microsoft Windows 2000 Windows NT 4 0 Windows 98 Windows Me or Windows XP installed on a local hard disk TCP IP
48. ackup Unit Monitoring and Maintenance 3 Under Actions select Recondition Battery then click Apply 5 26 SAM Client User s Guide Chapter 6 Maintenance Processes Introduction Maintenance processes include the following activities which you may need to perform from time to time on arrays that use redundancy and or fault tolerance or to maintain the most up to date firmware maintenance releases e Running a logical drive initialization e Running a consistency check on a logical drive e Running a data rebuild on a physical drive e Upgrading controller firmware e Adding an SES Enclosure to a configured system e Retrieving a Debug Dump e Performing a safe controller Shutdown e Deleting a Logical Drive Manual No SA67 0050 01 6 1 Running a Logical Drive Initialization Running a Logical Drive Initialization Logical drive initialization offers the ability to run a full initialization of logical drives at a time of your choice not just immediately following a new configuration If it s inconvenient to follow a configuration immediately with a logical drive initialization you can decline the initialization and use this menu item to start the process at a later time To open Initialize Logical Drives click Administration gt Initialize Logical Drives on the menu bar as shown in Figure 6 1 Administration Sje Dri Defne Server Groups RAID Assist Initialize Logical Drives Controller Information
49. al disk port Physical disk Replace physical has failed or cannot hardware failure disk Replace operate at the Physical disk is disk enclosure configured channel not compatible speed with system Enclosure disk slot hardware failure 71 2 Mirror Race A read or write Run consistency recovery failed for operation failed check and logical drive toaphysicaldisk restore while restoring consistency redundancy 96 1 Device loop ID Device loop ID Change index conflict soft addressing detected conflict detected on disk channel resulting in soft addressing potential data corruption selector to enable hard addressing per enclosure manufacturer s specification SAM Client User s Guide Table A 2 SANArray Manager Events Event Information ID Severity Description Details Actions 128 4 Consistency check User started a None is started consistency check raidbld started consistency check 129 4 Consistency check Consistency None is finished check completed successfully without detecting any errors 130 3 Consistency check User canceled Restart is canceled the consistency consistency check check if required 131 2 Consistency check Inconsistentdata See bad block on logical drive were found and request error Bad sectors sense table for were found more A physical disk information reliability problem 132 2 Consistency check A logical device See requ
50. appings are toggled by left clicking the mouse on the entry As entries change in the Host to Logical Drive Mapping list the Logical Drive to LUN Mapping information is updated The following rules are enforced e Logical drives may share LUNs as long as the same host does not access both logical drives e The host to logical drive mapping can be made before assigning a LUN to the logical drive A LUN assignment can be made at any time Only valid LUN assignments are displayed in the LUN selection field e Host to logical drive mapping may be done without assigning any hosts Hosts may be assigned at any time Manual No SA67 0050 01 4 31 Running RAID Assist Set Sequential The Set Sequential button sets all logical drives to LUN assignments sequentially and all host to logical drive mapping to Enable All Hosts For example logical drive 0 to LUN 0 logical drive 1 to LUN 1 etc Clear All The Clear All button sets all LUN assignments to None You can then select individual assignments more closely while allowing several assignments of inaccessible A dialog box will open if an apply attempt is made with no assignments Restore The Restore button resets the SANmapping configuration to the mapping assigned at the time RAID Assist is entered If editing an existing configuration the original mapping is read from the firmware A new configuration reverts to the default mapping Enable All Hosts Cancel The Cancel bu
51. application GAM is everything needed to manage Mylex PCI RAID Controllers SCSI Host Adapters and External RAID Controllers GUI Graphical User Interface a software interface that interacts with the user through color graphics and a mouse Immediate RAID Availability See Background Initialization Interface A hardware or software protocol that manages the exchange of data between the hard disk drive and the computer The most common interfaces for small computer systems are ATA advanced technology attachments also known as IDE integrated drive electronics and SCSI Internet A worldwide system of computers that is a public cooperative and self sustaining facility accessible to tens of millions of users worldwide Intranet A network contained within an enterprise the main purpose of which is usually to share company information and computing resources among employees An intranet can also be used to facilitate working in groups and for teleconferences 0 Input Output the transmission of information between an external source and the computer Glossary 8 SAM Client User s Guide Glossary 1 0 Intensive An application whose performance depends strongly on the performance of the I O system I Os Per Second Number of I O transactions per second me Intelligent Input Output a driver that uses special I O processes to eliminate T O bottlenecks The processes deal with interrupt handling bufferin
52. ation guide covers the steps involved to install and use the client component of Mylex s SANArray Manager with Mylex External Disk Array Controllers for Software Kit 5 For information on installing and running the server component of SANArray Manager consult the appropriate Global Array Manager Server Software Installation and User Manual for Software Kit 5 Conventions Throughout the manual the following conventions are used to describe user interaction with the product bold The user must enter the bold text exactly as shown pa Press the Enter key or Enter Press the key labeled Enter or Delete etc File gt Run Select the Run option from the pull down menu activated when the File menu pad is selected Note Supplementary information that can have an effect on system performance A Caution Notification that a proscribed action has the potential to adversely affect equipment operation system performance or data integrity WARNING Notification that a proscribed action will definitely result in equipment damage data loss or personal injury Contents Chapter 1 Introduction LEALI EN A A ae Nea 1 1 SANArray Manager Components ccccecceeeeeeeeeeeereteeeeeeeeeaes 1 2 Configuration Functions eeeeceeeceeeeeeeeeeeeeeeeeeeeeteaeeeaeeeeeetaes 1 2 Monitoring FUNCIONS sepia et edain indret adeten randade ieii 1 2 Maintenance Functions ccceeesceeeeseeeeeeeeeeneeteseeeeseeee
53. atus area displays details regarding the data dump such as firmware version abort code source file name and line number Data goes to the RDD file Figure 6 20 Manual No SA67 0050 01 6 15 Retrieving a Debug Dump Retrieve Debug Dump C debugdumpname rdd Data Read failed code 0x12f Figure 6 20 Retrieve Debug Dump Dialog Box 7 Click Cancel to close the Retrieve Debug Dump dialog box 6 16 SAM Client User s Guide Maintenance Processes Performing a Controller Shutdown The purpose of this activity is to cleanly shut down the controller system leaving the BBU charged Open the Shutdown option as shown in Figure 6 21 ced Functions Shutdown k Figure 6 21 Select Shutdown The Shutdown dialog box is displayed as shown in Figure 6 22 Shutdown Figure 6 22 The Shutdown Dialog Box To perform a shutdown 1 Click Prepare for Shutdown Manual No SA67 0050 01 6 17 Performing a Controller Shutdown Steps are taken to prepare for a clean controller shutdown including the following e Switching to write through cache e Draining the cache e Electrically disconnecting the BBU e Sending instructions to the partner controller to carry out the same actions Under Controller Status Preparing for Shutdown will be checked while the above steps are taking place Click Refresh periodically to update status When Ready to Power Off is checked under Controller Status click
54. build bus reset failed it 35 1 A physical disk Double check Replace physical failed because condition disk and rebuild double check occurred it condition occured 36 1 A physical disk Access to the Replace physical failed because physical disk disk and rebuild device is missing failed it 37 1 A physical disk Gross error Replace physical failed because of occurred to the disk and rebuild gross error on SCSI on board SCSI it processor processor A 6 SAM Client User s Guide Table A 2 SANArray Manager Events Event Information ID Severity Description Details Actions 38 1 A physical disk The physical Replace physical failed because of disk responded disk and rebuild invalid tag with an invalid it tag 39 1 A physical disk SCSI command Replace physical failed because a timed out on the disk and rebuild command timed out physical disk it 40 1 A physical disk System reset Replace physical failed because ofthe occurred disk and rebuild system reset it 41 1 A physical disk The physical Replace physical failed because of disk returned disk and rebuild busy status or parity busy status it error The SCSI transaction with the physical disk met with parity error 42 1 Aphysicaldisksetto Command from Replace physical failed state by host host set the disk and rebuild physical disk to it failed state 43 1 A physical disk Physical disk Replace physical failed because disconnect
55. by data is written to the SCSI drive before a completion status is returned to the host operating system This caching strategy is considered more secure since a power failure will be less likely to cause loss of data However a write through cache results in a slightly lower performance XOR Exclusive Or a computer language function that generates parity in RAID systems this or that but not both Glossary 22 SAM Client User s Guide A Add Logical Drive 4 12 4 14 4 22 Adding a Server Group to the Server Group List 3 16 Adding a Server to the Servers List 3 17 Advanced Functions enclosure discovery 3 12 flash utility 3 12 retrieve debug dump 3 12 shutdown 3 12 ANSI G 1 Applet G 1 Application Program G 1 Array G 1 spanning 4 33 Assisted Configuration 4 10 fault tolerance 4 16 logical drives 4 19 optimization 4 20 options 4 14 RAID level 4 17 4 18 Asynchronous Data Transfer G 1 Auto Configuration 4 10 Auto Restore 4 7 Automatic Configuration options 4 12 Automatic Rebuild G 2 Automatic Rebuild Management 4 5 Automatic Switchover G 2 B Background Initialization G 2 BBU Maintenance 5 22 Benchmarks G 2 Berkeley RAID Levels G 2 BIOS G 3 BIOS Config Utility G 3 Booting or Bootstrapping G 3 Busy On Failback 4 6 Manual No SA67 0050 01 Index Button Controls 3 2 Cc Cache G 3 Cache Flush G 3 Cache Line Size 5 11 G 3 Cache Size 5 5 Caching G 4 CC For Invalid LUN 4 7 Clear Configuration
56. cal device AND the logical drive s of which it is a part are returned to operational status If you cancel rebuild the device returns to its offline dead status red X and the logical drives that occupy this physical device all go to critical status yellow exclamation point You must complete a future rebuild to return the physical device and logical drive s to operational status Manual No SA67 0050 01 6 7 Using the Flash Utility Using the Flash Utility If you are upgrading your firmware to 7 x or higher you must reboot the host system after completing this procedure The Flash Utility is used to upgrade firmware by flashing the new code stored in an identified IMA file to the on board flash memory As maintenance releases of this code become available this utility allows you to keep your controller current using SANArray Manager Open the Flash Utility as shown in Figure 6 8 Administration p fan Ure Ene Server lroups RAID Assist Initialize Logical Drives Controller Information Enclosure Information Controller Options Intelligent BBU Scan Devices Advanced Functions gt Eee Shutdown Settings Enclosure Discovery Preferences Retrieve Debug Dump Figure 6 8 Select Flash Utility A message will appear notifying you that all I O will be stopped before downloading Click the OK button or press the Enter key to continue SANArray Ma
57. cessary 60 2 Temporary Dead Temporary Analyze event physical disk is Dead state log to find out automatically made caused because why the physical online of transient disk was marked errors Dead Manual No SA67 0050 01 Overview Table A 2 SANArray Manager Events ID Severity Description Details Actions 4 A standby rebuild has started A physical disk failed and spare was available None Hot spare replaced with a smaller capacity drive The new hot spare may have a smaller physical capacity than the drive it replaced The controller coercion setting may have reduced the configurable size of the new hot spare None A storage access path has come online PathPilot reported an access path has become available Storage previously unavailable has become available again None This indicates that storage access has been restored A storage access path has been lost PathPilot is unable to access certain storage on any path Storage previously available is now unavailable Investigate possible causes e g cabling controller or HBA failure SAM Client User s Guide Table A 2 SANArray Manager Events Event Information ID Severity Description Details Actions 65 3 A storage access PathPilot is Investigate path has shifted to unable to access possible causes the alternate path storage on th
58. cf 7 Cancel Figure 4 35 Save Configuration Dialog Box 2 Click Save to save the configuration file The configuration file ecf as well as a text file txt with configuration information will be saved Manual No SA67 0050 01 4 39 Saving a Configuration to Disk 4 40 SAM Client User s Guide Chapter 5 Monitoring Introduction Monitoring activities involve the following Monitoring events messages sent by various servers to the client workstation s Monitoring controller activity reviewing controller configuration and other information Reviewing physical device and logical drive information and locating arrays Monitoring and managing SAF TE and SES enclosure information Monitoring the status of ongoing processes such as initialization rebuild consistency check and expanding capacity of an array Monitoring the status of an Intelligent Battery Backup Unit BBU and recharging reconditioning the battery if needed Manual No SA67 0050 01 5 1 Event Monitoring Event Monitoring GAM Server monitors activity of all devices and controllers attached to the server When a controller firmware generated event occurs whether severe such as a hard disk failure or informational such as assignment of a drive to hot spare status GAM server retrieves those events and forwards them to SAM Client Events are displayed in the Log Information Viewer An event can be any of the following e Err
59. ck Close or press the Enter key to close the Expand Capacity Status box at any time Manual No SA67 0050 01 5 21 Battery Backup Unit Monitoring and Maintenance Battery Backup Unit Monitoring and Maintenance If your controller is equipped with an Intelligent Battery Backup Unit BBU you will be able to open the BBU dialog box as shown in Figure 5 16 Administration Sian Orn Deme Server lroups RAID Assist Initialize Logical Drives Controller Information Enclosure Information Controller Options Scan Devices N Advanced Functions gt Settings Preferences Figure 5 16 Select Intelligent BBU Figure 5 17 shows the Intelligent BBU window for all controllers Intelligent Battery Backup Unit Power Levels _ Battery Status 20 00 Low Power Threshold NiCad Battery Type 25 00 Current Power fi Version Discharge Batter Fast Charge 2500 Aa PARET I Low Power Alarm Stop Recondition I Never Reconditioned 100 Charge Level I7 Reconditioning Needed T Reconditioning Active T Fast Charging Active T Discharging Active Refresh i Display Minutes Hours Figure 5 17 Intelligent BBU The Intelligent Battery Backup Unit BBU dialog box is used to monitor and charge or recharge the backup battery pack on the controller This battery pack maintains the controller s data in RAM in case AC power is lost to the disk storag
60. d Memus ceseccceseseeeesereeeeeeeeecereeseeeesensensscees 3 9 File Men scence ctl vn iste ee ee eee 3 9 View Menu sioi a aga e Wate edt 3 10 Administration Menu 0 cescceeesseeeeeeeeeseeeeeneeeeeneeeenneeees 3 10 Window M nul s ccccinsetedeaceecesereshigscptdestedgsnenasecicaiseazaaigaenecs 3 13 Help Menu 2ici eck ate teens cise bce nde neviaeeh aed 3 13 Toolbar and Toolbar ICONS eesceeesseeeseeeeeneeeeeeneeeeneeeesnneereaes 3 13 Manual No SA67 0050 01 v Exiting SANArray Manager Client ccceeeceeeeeeeeeeeeeeteneeeneeeeaeeenees 3 15 Exiting GAM SENET iniisa n e E A ince 3 15 Setting Up Server Groups and Servers sssssssesesreerrererrsrnererrererne 3 16 Adding a Server Group to the Server Group List 00 3 16 Adding a Server to the Server Groups List cseeeeeeeeees 3 17 Signing Onito aA Serner inie sets cared onthe cio eee 3 18 Security Access Levels o eceeeceeeeeteseeeeeeeeeeeeeeeeeeeteaeeteeeeaeeeaes 3 18 GUCSt E E hea nscictheits aie NOTE 3 18 USEM sophia ttn ho aad Ate et at 3 18 Administrat aaepe a E aa i aAA EE 3 19 SIQNING ON aeo e aa ae Eee ee as 3 19 Event SOttimOS S a aa a aa eaa e E AE RAEES 3 21 Event Logging st cciieciel Neg A a AE aA 3 22 Launch an Application 0 eesceeesneeeneeeeeneeeeeneeeeeneeeeenneereaes 3 23 Modifying Preferences ecccccesececeeseeeeseeeeeeeeeeeeeneeeeenseseseeenteenenes 3 24 For More Information
61. d as shown in Figure 2 3 At this point you will select the component s you wish to install Select Components Ea Select the components you want to install clear the components you do not want to install Components Global Array Manager Client SANArray Manager Client Global Array Manager Server Description Requires that the Global Array Manager Server component be installed on this or some other network attached computer Space Required 4088K Space Available 2836558 K lt Back Neat gt Cancel Figure 2 3 Select Components to Install 6 Select SANArray Manager Client for installation click the box if necessary to check the SANArray Manager Client option Note When installing SAM Client you may also choose to install GAM Server at this time Instructions for GAM Server installation are described in the GAM Server documentation 7 Click Next and follow the on screen prompts 2 4 SAM Client User s Guide Installation Installing SANArray Manager Client with Linux Installing the SAM Client on a Linux operating system requires the use of Wine Wine is an application that allows Windows programs such as SAM Client to run on Linux It is highly recommended that you use the Wine version from the specified web site This version of Wine has been tested with SAM Client and we do not guarantee that our product supports other versions Install Wine Go to the follo
62. ddressed as a single unit In some cases this may be called a drive pack when referring to just the physical devices All the physical devices in a drive group should have the same size otherwise each of the disks in the group will effectively have the capacity of the smallest member The total size of the drive group will be the size of the smallest disk in the group multiplied by the number of disks in the group For example if you have 4 disks of 400MB each and 1 disk of 200MB in a pack the effective capacity available for use is only 1OOOMB 5x200 not 1800MB Drivers A software routine that receives I O requests from higher levels within the operating system and converts those requests to the protocol required by a specific hardware device ECC Error Correcting Code a method of generating redundant information which can be used to detect and correct errors in stored or transmitted data EEPROM Electrically Erasable PROM see EPROM EPROM Erasable Programmable Read Only Memory memory which can be erased and re used eXtremeRAID A family of Mylex RAID controllers which offer uncompromising fault tolerance data availability superior configuration and management Glossary 6 SAM Client User s Guide Glossary flexibility The eXtremeRAID controllers use driver technology which has won tpm C benchmarks worldwide With this technology eXtremeRAID controllers provide the highest performance and most flexib
63. demarks of Novell Inc SCO and UnixWare are registered trademarks of Caldera Systems Incorporated Windows Windows Me Windows NT Windows XP Microsoft Outlook Microsoft Exchange and Microsoft At Work are trademarks or registered trademarks of Microsoft Corp Linux is written and distributed under the GNU General Public License which means that its source code is freely distributed and available to the general public Hayes is a registered trademark of Zoom Telephonics Inc All other referenced product names are trademarks of their respective companies and may be used herein for the purpose of identifying the products or services of their respective owners Unless otherwise noted companies names and data used in examples herein are fictitious Our Policy Although reasonable efforts have been made to assure the accuracy of the information contained herein this publication could include technical inaccuracies or typographical errors IBM expressly disclaims liability for any error in this information and for damages whether direct indirect special exemplary consequential or otherwise that may result from such error including but not limited to loss of profits resulting from the use or misuse of the manual or information contained therein even if IBM has been advised of the possibility of such damages Any questions or comments regarding this document or its contents should be addressed to IBM at the address shown on the cover The
64. disks in same zone Restore data from a back up 157 System drive LUN mapping has been written to configuration System drive LUN mapping has been written to configuration None 158 Attempt to read data from block that is marked in Bad Data Table Attempt to read from block that is already marked bad in Bad Data Table Potential data loss Attempt to read from block that is already marked bad in Bad Data Table Potential data loss Manual No SA67 0050 01 A 17 Overview Table A 2 SANArray Manager Events ID Severity Description Details Actions 159 2 Data for Disk Block Data retained in Insure that all the has been lost due to RAID Cache for physical disks Logical Drive a Write back related to the problem Logical Drive Logical Drive cannot disk channel be stored to the enclosure or physicalmedium cabling are because of functional and Logical Drive accessible problem Repair or The Logical replace as Drive problem necessary could be because of multiple physical medium errors or multiple physical devices offline or other reasons 160 2 Temporary Offline Temporary Verify data from RAID5 RAID3 array Offline state backup is available to the caused because user again with the of transient possibility of data errors in physical loss in the array disks 161 2 Temporary Offline Temporary None RAIDO 1 RAID1 Offline state RAIDO JBOD arra
65. e Server Groups RAID Assist Initialize Logical Drives Controller Information h Enclosure Information Controller Options Intelligent BBU Scan Devices Advanced Functions gt Settings Fa Preferences Figure 5 2 Select Controller Information SAM Client User s Guide Monitoring The Controller Information window opens see Figure 5 3 Controller 1 Information 21 x Model DACFFX Dual Controller Status Firmware Version 7 40 14 Partner Status Ok Cache Size 128 MB Fault Tolerant ves Memory Size 32MB Kill Partner Intelligent BBU Yes kelinguisn Ranner Host Ports oh Drive Channels 5 te Bus Type Fibre Controller Specific Bus Width 1 Bits Bork lt 1 p0 cOpo cOp1 cipo cipt Bus Speed i100 Port ID 0 NA 4 Nia Physical Devices Heal WAN c0 WAN c1 Logical Drives LAB 2000 0080e5 114459 2000 0080e5 114059 Host Connection Information OS Controller 2 Channel 0 Target A Controller Options Figure 5 3 Controller Information The following information is displayed The controller model The firmware version residing on the controller The cache size The memory size Whether an Intelligent Battery Backup Unit is installed N A for not supported on the current controller The number of host ports on this controller The number of drive channels on the controller The host port bus type SCSI Fibre Channel of the controller
66. e controller pair selections Components of the Global Status View Window The major components of the Global Status View window Figure 3 1 are described below 5 3 4 Item 5 is an icon that represents a currently unselected file server running the GAM Server component The icon identifies the same information described above There may be multiple icons displayed Item 6 is an icon that represents the currently selected file server running the GAM Server component The icon identifies e the IP address e g 10 17 3 172 or name e g LAB_A of the server e the network operating system running on the server e g 2000 Windows 2000 NT Windows NT NW Novell NetWare etc e the operational status of the server green connected yellow attempting connection red X unable to connect e the number of controllers connected on the server the status of all controllers on that server with a controller operational status light green online yellow critical red X offline SAM Client User s Guide Startup amp Navigation Components of the Log Information Viewer 7 Item 7 in Figure 3 1 is the SANArray Manager Client Log Information Viewer Each line in the Log Information Viewer identifies a single event which was noted during monitoring by a server running GAM Server and was transmitted by that server to this client workstation Relevant details accompany the event e Event ID Dis
67. e e g cabling original path but controller or HBA is able touse the failure alternate path A PathPilot failover has occurred 66 4 A storage access PathPilot is None This path has shifted to again able to indicates that the the primary path access certain primary path has storage on the been restored original path A PathPilot failback has occurred 67 2 Physical Disk is Physical Disk Inspect disk connected to only found on only channel cables one disk channel one disk and related channel hardware for proper operation 68 4 Physical disk type is Physical disk Contact RAID not approved by does notmatcha controller vendor vendor type allowed by the vendor The system rejects all physical disks after the first that is not approved by the vendor to acquire a supported drive Manual No SA67 0050 01 A 11 Overview Table A 2 SANArray Manager Events ID Severity Description Details Actions 69 2 Physical disk has Enclosure Insure that each acquired an selector switch disk enclosure inappropriate loop conflict Physical selector switch is ID Enclosure disk disk hardware set to a unique slot operations are failure number per disabled while this Enclosure disk enclosure condition persists slot hardware manufacturer failure specification Inspect physical disk connector Power cycle entire system Replace physical disk Replace disk enclosure 70 2 Physic
68. e system When a new battery is needed the BBU dialog indicates this by showing the battery can no longer take or hold a charge This dialog box is also used after an old battery pack is replaced with a new 5 22 SAM Client User s Guide Monitoring one The new battery must be reconditioned before it can provide its full capacity Prior to beginning normal operations Mylex recommends that you condition the battery for maximum longevity See Conditioning the Battery on page 5 25 Power Levels The Power Levels area of the Intelligent Battery Backup Unit dialog box contains the following e Low Power Threshold A modifiable power level expressed as hours or minutes of charge used to trigger an alarm when the battery power level drops below the set value Enter a new threshold select Set Low Power Threshold under Actions then click Apply to set the new value e Current Power The current power level of the battery expressed as hours or minutes of charge This value will change as the battery is discharged or charged e Maximum Power The highest level the battery has been charged up to expressed as hours or minutes of charge This value will change as the battery ages and is reconditioned The older the battery gets the less charge it can contain e 9 Charge Level The battery s charge level where 100 means the battery has been charged up to its maximum level e Display Minutes Displays power values in minute
69. e through the name IP address WWN and host bus tag list of the HBA e The Delete button allows deletion of the highlighted host s from the World Wide Name Table Only hosts that are not connected are eligible for deletion e The Replace button will copy the LUN map of the highlighted unconnected host to the highlighted attached host The highlighted unconnected host in the World Wide Name Table will be deleted Only a single unconnected host can be highlighted and only a single connected host can be highlighted for this button to be enabled e The OK button applies the settings made 4 30 SAM Client User s Guide Configuration e The Cancel button cancels the settings made The host states are defined as follows Found The host is logged on and found The IP address or host name is displayed A server may have more than one Connected The host is logged on to the fibre channel loop The host cannot be found on the IP network The WWN of the host HBA is displayed on the network Not Connected This is a host that is not logged on to the loop Available hosts on the network are determined by the client running an internal algorithm Note See Modifying Preferences on page 3 24 for a setting that affects finding hosts Each row in the table identifies a host and each column identifies a logical drive An X in the table connects a host with a logical drive A means the host is not mapped The m
70. ecture disk Segment Size See Cache Line Size Sequential I O A type of read and write operation where entire blocks of data are accessed one after another in sequence as opposed to randomly Server A computer program that provides and manages services to other computer programs on the same or other computers The computer that a server Glossary 18 SAM Client User s Guide Glossary program runs on is also frequently referred to as a server See also Application Server Session The period of time between any two consecutive system shutdowns system shutdown may be either a power off on or a hardware reset SMART Self Monitoring Analysis and Reporting Technology the industry standard reliability prediction indicator for both the ATA IDE advanced technology attachments integrated drive electronics and SCSI hard disk drives Hard disk drives with SMART offer early warning of some hard disk failures so critical data can be protected SMB Server Message Block protocol a method for client applications in a computer to read and write to files on and to request services from server programs in a computer network A client application can read create and update files on the remote server It can also communicate with any server program that is set up to receive an SMB client request SNMP Simple Network Management Protocol the protocol governing network management for monitoring network devices and their functi
71. ed or disk and rebuild access tothe device powered off it met with a selection Physical disk Check power time out failure and cabling 44 1 A physical disk Physical disk Replace physical failed because of a failure sequence error in the SCSI bus phase handling disk and rebuild it Manual No SA67 0050 01 Overview Table A 2 SANArray Manager Events ID Severity Description Details Actions 45 1 A physical disk Bad physical Replace physical failed because disk or disk or the device returned an incompatible device and unknown status device rebuild it 46 1 A physical disk Physical disk not Replace physical failed because spinning just disk and rebuild device is not ready turned bad it Check power Power to the and rebuild physical disk device failed 47 1 A physical disk Physical disk not Check setup failed because connected or not Check the device was not responding startup option found on start up Clear parameters on configuration the system suspend mode command was invoked 48 1 A physical disk Failed physical Replace physical failed because write disk Device disk and rebuild operation of the write protected it Check the Configuration On startup option Disk failed parameters on the system 49 1 A physical disk Failed physical Replace physical failed because write disk Device disk and rebuild operation of Bad write protected it Check the
72. ed parameters and asks the user questions to gather key information necessary to build the array If configuration needs go beyond what Auto or Assisted Configuration offer the Manual Configuration option allows full control of all elements of the configuration process including SANmapping 4 10 SAM Client User s Guide Configuration Entering RAID Assist Open RAID Assist by clicking Administration gt RAID Assist on the menu bar or the RAID Assist icon as shown in Figure 4 7 Administration Hoh Define Sener Groups Initialize Sa Controller Information Enclosure Information Controller Options Intelligent BBU Scan Devices Advanced Functions gt Settings Preferences Figure 4 7 Select RAID Assist The RAID Assist Welcome dialog box displays Figure 4 8 Raid Assist 204 32 130 202 Controller 2 xi 1 Welcome Welcome to RAID Assist RAID Assist allows you to set up new configurations add logical drives to existing configurations and expand the capacity of existing arrays To get started with RAID Assist choose a configuration method below Creates an optimal configuration using all available drives with minimal user input Creates or modifies a configuration using a 7 2 step by step question and answer format Assisted Configuration Creates or modifies a configuration using only Saran information provided by the user Manual Configuration
73. eeeeeaes 1 2 Requirements iniiae ae aid a 1 3 Client Hardware and Software o ccecceseceseeeeeeeeeeeeeeneeeeeeeeeeeeaes 1 3 Chapter 2 Installation Installation Overview eceeeceeeeeeeeeeeeeeeeeeeeaeeeeeeeeaeeseeseeeseaeeseaeeeaeenaees 2 1 Installing SAM Client with Windows Operating Systems 2 2 Installing SANArray Manager Client with Linux 0 ee eeeeeeeeeees 2 5 Install Wine e aaan apase ndsed ca ttanstensaes adden Ge ig nageat asda ets 2 5 Instal SAM Client 2i 0 evi ia cel i tei died als 2 5 To Uninstall SAM Client Software cece eeeeeeeeeeeeeteeteeeeneees 2 6 Chapter 3 Startup amp Navigation Starting SANArray Manager ccceeeceeeceeeeeeeeeeeeeeseeeseeeeeeeseaeenaeenaes 3 1 Server Component eeceeeeeeeeseeeeeeeeeeeeaeeeeeeeneseaeetsaeeeaeeeeeeaas 3 1 Client COMPONEN iner eeeeetceeeeeeeneeteeeeeaeeeseeseaeeeaeesseeeeaeeeeaeteaee 3 1 Navigating SANArray Manager Client cceeceeeseeereeeeeeeeeeereeees 3 2 ButtoniGontrols 4 2u vinings hie a a a 3 2 Components of the SANArray Manager Client Opening SCHEONS i 2 6s AN Ate ial ee Pee a E 3 3 Components of the SANArray Manager Client Windows 3 3 Components of the Global Status View Window 3 4 Components of the Log Information Viewer e e 3 5 Components of the Controller View Window cceeeeeeeee 3 6 Controller View Status ICONS c ceeceeseeeeseeeeeeeeeeesseeeeeeeneeeees 3 8 Menu Bar an
74. eeeerrerreerrs 4 28 Host to Logical Drive Mapping ssessesssreeseerrrerrerresrne 4 29 Set Sequential scccc aos aie cen 4 32 vi SAM Client User s Guide Clear All ststcsct het coee Hh eed Ai n cee a 4 32 Restor iid a es ee 4 32 Cancela siio ari ue e th ek chats dake 4 32 APPI iieii ee kina ated 4 32 Spanning in SANArray Manager Client eeeeeeeeeeeeeeeeeeeeteeees 4 33 Enable Spanning in SAM eceecceeeceeeeeeeeeeaeeeeeeeeeeeeeeeeeeeeaeeas 4 33 Configuring a Spanned Array cccceeceeeceeeeeeeeeeeeeeteeeeeeeeeetees 4 33 Creating a Spanned Disk Array eecceeeceeeeeeeeeeeeeeeeeeeeeteaeens 4 34 Loading a Configuration from Disk ccescesseeseeeeeeseeeeteeeeeeteaeeees 4 37 Saving a Configuration to DiSk ee ceceeeeeeeeeeeneeeeeeeeeeeneeeeeeeeeens 4 39 Chapter 5 Monitoring INnthOdUCHION senile aia ea Aenean E 5 1 Event Monitoring acs Aeniaci ie a a ei ee 5 2 Opening the Log Information Viewer ceeeceeeeeteeeeeteneeees 5 2 Opening an Event Information Window eceeeeeeeeeeeeteeeee 5 2 Controller Monitoring eceeeeeecceeeeeeeeeeeseeeeeeeeaeeteaeeeaeeeaeeteaeeeaeeteaeeaas 5 4 Displaying Controller Information ee seeeeeeeeeeeeeeeeereeeeeneeeen 5 4 Physical Device and Logical Drive Monitoring e 5 6 Displaying Device Information sseseeeeeeereerreerrrerrrrrnsreee 5 6 Device Information RAID Controller ssesesseeseeeeeeeeeeen 5 7 Device Information Disk D
75. ees too high Fan allow it to cool Celsius failure Sensor down failure Adjust the room temperature 289 3 Temperature is Room Replace fan above 50 degrees temperature is Turn off the celsuis high system Adjust Fan failure the room temperature 290 4 Normal temperature Faulty fan has None has been restored been replaced Room temperature was reduced 291 1 Over temperature Room Turn off the temperature is system and too high Fan allow it to cool failure down Adjust the room temperature Manual No SA67 0050 01 Overview Table A 2 SANArray Manager Events ID Severity Description Details Actions 292 4 Storage cabinet Enclosure Refer to temperature sensor management enclosure is not present connection is manufacturer s broken service manual Management hardware failure Sensor is not present 304 1 Enclosure reported Power supply Follow enclosure failure state failed Fan failed management Cabinet is too vendor s hot diagnostics and repair procedures 305 3 Enclosure reported Enclosure Follow enclosure critical state reported critical management state vendor s diagnostics and repair procedures 306 4 Enclosure reported Enclosure None normal state reported normal state 307 4 Uninterruptable Uninterruptable Refer to power supply power supply enclosure disabled disabled manufacturer s service manual 308 4 Uninterruptable Uninterruptab
76. efer to the enclosure manufacturer s service manual Parity error found A physical device did not generate proper parity The controller failed did not check parity properly Cable failed Improper cable length Another physical device interfered Some outside environment affected the data on the cable e g radio frequency signal Terminator is not connected Improper termination Refer to the enclosure manufacturer s service manual SCSI device reset Firmware has done a reset to recover from an error User has done a reset None Manual No SA67 0050 01 A 5 Overview Table A 2 SANArray Manager Events ID Severity Description Details Actions 28 2 Request Sense data A physical Refer to the available device or Request Sense firmware data for reported an information error 29 4 Initialization started Host started Wait until initialization complete 30 4 Initialization Physical device None completed initialization completed successfully 31 2 Initialization failed Physical device Re initialize could have contact your problems service supporting the representative SCSI format command 33 1 A physical disk Write recovery Replace physical failed because write process failed disk and rebuild recovery failed it 34 1 A physical disk SCSI bus reset Replace physical failed because SCSI failed disk and re
77. epicted as a tower Item 2 The physical devices present on each channel specifying the target ID capacity of the device device type and device status See Physical Device and Logical Drive Monitoring on page 5 6 for more information Item 3 The logical drives configured on the controller specifying the logical drive number capacity of the logical drive configured RAID level and logical drive status Item 4 Enclosure Information and Details Button See Enclosure Monitoring and Management on page 5 12 Item 5 The host device present on each channel specifying the device inquiry data vendor bus width etc and the device state Note For certain FW versions one or more controller icons may be shown SAM Client User s Guide Startup amp Navigation 0 13000 RAID 0 1 Total Logical Capacity 13000 MB Figure 3 3 Controller View Window Non Fibre RAID Controller 5 E Controller View AmE Physical Devices MB Logical Drives MB Total Logical Capaciy 5024 MB Total Physical Capacity 63464 MB I Ercowe Figure 3 4 Controller View Window Fibre to Fibre RAID Controller Manual No SA67 0050 01 3 7 Navigating SANArray Manager Client Controller View Status Icons The following icons display the status of logical and physical drives in the Controller View Window Ee Physical Device Offline State Physical Device On
78. erformance Council TPC is a standards organization that measures transaction throughput of systems One of their benchmarks is Tpm C which reflects price and performance metrics TPC C reflects new order transaction rate a benchmark for transaction speed Mylex products have won consistently high TPC C results Manual No SA67 0050 01 Glossary 21 Glossary Transfer Rate The rate at which data moves between the host computer and storage input or output devices usually expressed as a number of characters per second WAN Wide Area Network a geographically broader telecommunication structure as opposed to a local area network LAN that comprises of two or more LANs A wide area network may be composed entirely of private structures but the term also seems to connote the inclusion of public networks and all kinds of transmission media Web A number of computers servers or networks linked together in a matrix See also Internet and Intranet Write Back Cache A caching strategy whereby write operations result in a completion signal being sent to the host operating system as soon as the cache not the disk drive receives the data to be written The target disk drive will receive the data at a more appropriate time in order to increase controller performance An optional cache battery backup can be used to protect against data loss as a result of a power failure or system crash Write Through Cache A caching strategy where
79. erver host It is recommended that the gamroot user be established with Windows Administrator privileges or Linux s root privileges The gamroot account must be password protected and the password must be managed in a security conscious manner SAM relies on the server host s operating system security measures Therefore proper handling of the gamroot password is critical to the protection of user data on the controller Guest Guest access level is achieved by not signing on to a server host Guests can monitor the Log Information Viewer and the Global Status View and can manipulate the menu bar controls to determine what is shown in the Global Status View Guests can change the Administration Preferences and use Administration Define Server Groups Guests cannot view or make changes to any controller parameters or configurations User User access level is achieved by signing on to a server host using a username that is not gamroot but one that the administrator of that server assigns Users have all the capabilities of Guests Users can also view the detailed status of a controller by activating the Controller View Controller 3 18 SAM Client User s Guide Startup amp Navigation Information and Enclosure Information Users cannot view or make changes to any controller parameters or configurations Administrator Administrator access level is achieved by signing on to a server host using
80. ery is underway Allow the process to complete or it will have to be repeated If you do need to interrupt reconditioning select Stop Recondition under Actions then click Apply Fast Charging Active Battery is being charged A fast charge also occurs when the controller is powered on Discharging Active Battery is currently discharging which is the first stage of a Recondition Battery action Actions The Actions area of the Intelligent Battery Backup Unit dialog box contains the following 5 24 Set Low Power Threshold Edit the Low Power Threshold field under Power Levels To change the threshold to this new setting select Set Low Power Threshold then click Apply Recondition Battery To initiate a battery recondition sequence select Recondition Battery then click Apply The controller cache is placed in conservative cache mode Write Through while the battery s capacity remains below the determined threshold Discharge Battery Currently inactive Reserved for future use Fast Charge To initiate a fast charge on the battery select Fast Charge then click Apply A fast charge also occurs when the controller is powered on SAM Client User s Guide Monitoring e Stop Recondition Only enabled when a recondition process is underway To stop the recondition process select Stop Recondition then click Apply e Apply Applies and saves the changes made in the BBU dialog box e Cancel Exits the dialog box
81. est on logical drive became critical sense data for failed A logical device more failed information 133 1 Consistency check A physical disk See request failed due to failed sense data for physical disk failure more information 134 1 Logical drive has One multiple It may not be been made offline physical disk s possible to failed recover from this error Contact your service representative Manual No SA67 0050 01 Overview Table A 2 SANArray Manager Events ID Severity Description Details Actions 135 2 Logical drive is Critical One physical device failed Replace the physical device Start the rebuild if required 136 Logical drive has been placed online Rebuild completed User set the physical disk online New configuration was added None 137 An automatic rebuild has started on logical drive A physical disk failed anda spare device was available A spare physical disk was found and replaced the failed device None 138 139 A manual rebuild has started on logical drive Rebuild on logical drive is over Client started the rebuild on user s request User replaced the failed device and Raidbld started the rebuild Rebuild completed successfully only for this logical drive None None 140 Rebuild on logical drive is cancelled User cancelled rebuild Higher
82. estigate started A 26 SAM Client User s Guide Table A 2 SANArray Manager Events Event Information ID Severity Description Details Actions 385 2 Write back error Data cache write The data may failed have been lost Restore the data from a backup 386 3 Internal log Too many Reboot the structures getting configuration system by power full PLEASE changes cycling when SHUTDOWN AND occurred since convenient RESET THE the last boot SYSTEM IN THE NEAR FUTURE 389 3 Controller has been Controller If this was an reset received a reset unexpected command event refer to the enclosure manufacturer s service manual 390 4 Controller is found New controller None has been installed Management software has restarted System has rebooted 391 0 Controller is gone Controller has None System is been powered disconnecting from off or has been this controller reset Controller has been removed from the system 392 4 Battery present A battery module None has been detected and is now operational Manual No SA67 0050 01 A 27 Overview Table A 2 SANArray Manager Events ID Severity Description Details Actions 393 3 Battery power low Battery power is If this message low occurs without power failure replace the battery 394 4 Battery power OK Battery has None enough power to enable the write data cache 395 0 Controller is gone
83. f fault tolerance was yes Figure 4 14 choose between e Parity error correction RAID 5 RAID 3 or e Fully redundant drives RAID 1 RAID 0 1 Assisted Configuration New Configuration 192 9 10 201 Controller 0 Fault Tolerance Raid Level Logical Drives Optimization Finish Figure 4 14 Assisted Configuration RAID Level With Fault Tolerance Manual No SA67 0050 01 4 17 Running RAID Assist RAID level tab if fault tolerance was no Figure 4 15 choose between Striping RAID 0 or e Stand alone drive JBOD Assisted Configuration New Configuration 204 32 13 Controller 2 Fault Tolerance Raid Level Logical Drives Optimization Finish Figure 4 15 Assisted Configuration RAID Level With No Fault Tolerance 418 t CSsS AM Client User s Guide Configuration Logical Drives Tab Configure the following options Figure 4 16 for a logical drive 1 How many logical drives do you want to create 1 32 2 How much capacity do you want to use default 100 available space or equivalent in MB 3 Do you want to initialize logical drives Yes No This is a Foreground initialization done after the configuration has been applied Do not select this option if you have enabled and require Background Initialization Certain controllers allow Immediate RAID Availability of logical drives after configuration For these controllers initialization can take place in the background without the need
84. figuration option allowing more control over configuration parameters SAM Client User s Guide Startup amp Navigation Administration Sian un Denne Server Groups RAID Assist Initialize Logical Drives Controller Information Enclosure Information Controller Options Intelligent BBU Scan Devices Advanced Functions gt Settings Preferences Figure 3 8 Administration Menu e Initialize Logical Drives Offers the ability to run a full initialization of logical drives at a time of your choice not just immediately following a new configuration If it is inconvenient to follow a configuration immediately with a logical drive initialization you can decline the initialization and use this menu item to start the process at a later time e Controller Information Displays key information about the currently selected controller Enclosure Information Displays SES and SAF TE Enclosure Management information for Mylex Fibre Channel Controllers e Controller Options Sets various parameters for the selected Disk Array Controller Unlike Controller Information user definable controller parameters are modified in Controller Options e Intelligent BBU Only enabled if the selected controller has an Intelligent Battery Backup Unit installed Displays a dialog box from which you can do the following e monitor the power remaining in the Intelligent BBU e request reconditioning of the I
85. figure a hot spare click an unused drive then click the Make Spare button 4 If you want to start over click the Clear All button and start again 4 24 SAM Client User s Guide Configuration 5 Once you have assembled the disk array groups click the Logical Drives tab to continue on to logical drive setup Figure 4 22 Manual Configuration New Configuration 192 9 16 44 Controller 0 1 Welcome 2 Disk Arrays 3 Logical Drives 4 SAN Mapping Disk Drive Logical RAID Capacity MB Capacity Write Init Stripe Array No Drives Level Logical Physical Utilization Cache Drive Size RAID 0 z 138848 138848 N A 138848 N A 104136 Add Drive Delete Drive Gear Al Cancel Figure 4 22 Manual Configuration Logical Drives The Logical Drives tab in Manual Configuration is where you configure your disk arrays into logical drives Do the following 1 Highlight a drive icon and select a drive number to be associated with this logical drive 2 Select a RAID level for this logical drive Supported RAID levels are RAID 0 RAID 1 RAID 3 RAID 5 RAID 0 1 and stand alone drive JBOD Only RAID levels compatible with the current array will be available in the list 3 Type the amount of available logical or physical capacity for this logical drive If your total configuration will have only one logical drive which uses all available capacity the default sizes should not be changed If you intend to create
86. following paragraph does not apply to the United Kingdom or any country where such provisions are inconsistent with local law IBM PROVIDES THIS PUBLICATION AS IS WITHOUT WARRANTY OF ANY KIND EITHER EXPRESS OR IMPLIED INCLUDING BUT NOT LIMITED TO THE IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE Some states do not allow disclaimer of express or implied warranties or the limitation or exclusion of liability for indirect special exemplary incidental or consequential damages in certain transactions therefore this statement may not apply to you Also you may have other rights which vary from jurisdiction to jurisdiction Information in this publication is subject to change without notice and does not represent a commitment on the part of IBM Changes may be made periodically to the information herein these changes will be incorporated in new editions of the publication IBM reserves the right to make improvements and or changes at any time in the product s and or program s described in this publication It is possible that this publication may contain reference to or information about Mylex products machines and programs programming or services that are not announced in your country Such references or information must not be construed to mean that IBM intends to announce provide or make available such Mylex products programming or services in your jurisdiction About This Manual This install
87. g and data transfer An I O driver also includes an OS specific module OSM which handles higher level OS details and a hardware device module HDM which knows how to communicate with certain devices ISM Integrated Software Module part of the I 0 package that helps operators insert special functions into the I O Java A programming language expressly designed for use in the distributed environment of the Internet and enforces a completely object oriented view of programming Java can be used to create complete application programs that may run on a single computer or be distributed among servers and clients in a network It can also be used to build small application modules or applets for use as part of a Web page Kilobyte 210 1 024 Abbreviated as K or KB LAN Local Area Network a network of interconnected workstations sharing the resources of a single processor or server typically within the area of a small office building Manual No SA67 0050 01 Glossary 9 Glossary Latency 1 The time between the making of an I O request and completion of the request s execution 2 Short for rotational latency the time between the completion of a seek and the instant of arrival of the first block of data to be transferred at the disk s read write head Logical Drive The logical devices presented to the operating system System drives are presented as available disk drives each with a capacity specified by the
88. he Close button or press the Enter key to close the dialog box Details Page Select the Details Tab to display Enclosure Information Details Figure 5 9 Enclosure Information x Information Details Settings Encloswe Status Access Fans Power Temperate Ale 0K OOK Low 00K OOK 43C 10K Low 10K 1 OK 45C 20K Low Figure 5 9 SES Enclosure Information Details Page Enclosure Information Details page displays the following about the currently available Fibre enclosures The status of each enclosure identified by an icon and an enclosure number as well as one of the following expressed in text e OK All components are optimal e Critical Some component has failed one more failure may result in data loss 5 14 SAM Client User s Guide Monitoring e Failed A failure has occurred that may result in data loss The access status of each enclosure which indicates the controller s ability to communicate with the enclosure The status values are e OK Access is optimal e Critical Only one access path remains of the several that were detected previously If the last access path is lost the controller will take steps to protect the data e Lost The enclosure is unreachable by the controller Any failures in the enclosure while this state exists will not be sensed by the controller The speed of the fans in the enclosure Each fan is designated with a number The status values are
89. he current status of the disk online offline etc and a failure indicator if the disk drive has failed refer to Appendix A for a list of error codes e The number of soft hard parity and miscellaneous errors registered e The identity of the enclosure where the physical drive resides In the disk drive Device Information dialog box Click the Reset Errors button to return all error tallies to 0 If the physical device is unconfigured the Make Hot Spare button may be available to set this device as a hot spare If the disk drive s status is Rebuild the Rebuild button may be available so that you can initiate a physical device rebuild Note The rebuild option for dual active controllers is only available by slot 0 Check the controller information to see which controller is in slot 0 If the disk drive s status is Dead you will see a failure indicator display on the Device Information page in the Device State section Make Online and Make Offline buttons should be used with great caution Refer to the online help file or call Mylex for support on these options The Prepare to Remove button causes a specific physical drive to spin down in preparation of removal The specified physical drive may then be physically removed Note The Prepare Drive for Removal feature only supports enclosures equipped with an SES device In the absence of a working SES device the request to prepare a drive for removal is rejected by
90. ical Drive Sizes When enabled allows you to use all of the configurable capacity of the physical drives composing an array This means that after common capacity sizes have been consumed irregular capacities may be configured into additional logical drives Note Using this feature increases the potential of configuring a non redundant logical drive on an array which will preclude rebuilding the array when a physical drive fails e Auto Configurator Upon Entry When enabled and when opening the Controller View in SAM if unused drives are detected a dialog box opens asking if you want to let SAM configure the system for you e Add Default Hot Spare When enabled a default hot spare will be added to any configuration made if there is a drive on the controller that is not part of the new configuration e Search All Groups for SANmapping This check box is only effective if you are running firmware version 6 x or higher When enabled all servers in all server groups will be searched to resolve WWNs to hostnames when entering SANmapping in RAID Assist Manual No SA67 0050 01 3 25 For More Information When disabled only the servers in the currently selected server group will be searched Disabled is the recommended setting e Data Port Allows you to select and change the Data port the valid range is 0 to 65535 Note If the Event or Data ports are changed the user is warned that changing these variables may have ad
91. ick the Sign On button see Figure 3 16 Event Settings Open Settings by clicking Administration gt Settings on the menu bar or the Settings icon as shown in Figure 3 18 Administration Sian OF Define Server Groups RAID Assist Initialize Logical Drives Controller Information Enclosure Information Controller Options Intelligent BBU Scan Devices Advanced Functions gt Preferences Figure 3 18 Select Settings Note After these settings are selected it is not necessary to be logged on to SAM client in order to receive event notifications or launch applications SAM client must however be running Manual No SA67 0050 01 3 21 Event Settings Event Logging Event Logging provides you options for setting desired event logging capabilities Figure 3 19 Settings Dialog Box Event Logging In the Settings dialog box under the Event Logging tab Figure 3 19 you have several options Enable or disable the event logging to a file function e Specify the path and name of the event log file e Append events to your current log file when SAM starts or e Replace the log file overwrite it when SAM starts 3 22 SAM Client User s Guide Startup amp Navigation Launch an Application 1 Select the Launch Application tab in the Settings dialog box Figure 3 20 Settings 21x Event Logging Launch Application Enable Command Launch for Seve
92. iled The alarm is installed but has failed The status of the enclosure s connection to one or more Uninterruptable Power Supplies UPS Each UPS is designated with a number The status values are e Absent The UPS is not installed or has failed in an undetectable way e OK The UPS is optimal Three additional items are displayed with this state AC Pwr the UPS is reporting an AC power failure DC Pwr the UPS is reporting a DC power failure Low Bat the UPS can power the system for only 2 to 5 more minutes e Failed The UPS is installed but has failed Error status for troubleshooting purposes Error status for an enclosure is reported in a format similar to the following example 0 Addressing 25 02 03 04 05 e is the error number e Addressing is the error type e 25 is the ALPA Arbitrated Loop Port Address of the drive in question e 02 03 is the first known channel and target to which the ALPA is mapped e 04 05 is the second known channel and target to which the ALPA is mapped An information field which contains most of the items listed on the Information page for easier cross reference Highlight an enclosure and the Locate button will become available Click the Locate button to blink the LEDs of all of the physical drives in the enclosure to reveal its location A locate enclosure dialog box will open 5 16 SAM Client User s Guide Monitoring click OK or press the Enter
93. ing data will not s be affected by this process Expand the capacity of an existing array Existing data will not be affected by this process Expand Aray Cancel Figure 4 9 Select New Configuration 4 12 SAM Client User s Guide Configuration The New Configuration option of the Automatic Configuration feature provides the administrator with the option of customizing the automatic configuration The automatic configuration feature uses the maximum number of drives provides a fault tolerant RAID level when able and creates a hot spare drive for drive failure protection The number of logical drives created is dependent on the total number of physical drives discovered The Finish screen displays Figure 4 10 Automatic Configuration New Configuration 10 1 19 100 Controller 0 1 Welcome 2 Finish RAID Assist has completed the configuration You can view details of the configuration by clicking the Details button If a you are satisfied with the configuration as defined below click the Apply Fault Tolerance button to implement the configuration J Raid Level If you wish to redefine the configuration go to the Welcome page and select T T Manual Configuration ogical Drive Optimization Configuration Summary Finish Physical drives amp 3 Logical drives 1 Physical capacity 4760 MB Logical capacity 3808 MB Hot spares el RAID level RAIDS Stripe size
94. ing the consistency check Figure 6 6 Restore Consistency If Errors Are Found 3 Click Yes to restore consistency during the process Click No if you just want to carry out the consistency check There is no risk of data loss Errors will still be reported but no attempt will be made to correct them Consistency Check runs and the Long Op Status box appears see Consistency Check Status on page 5 20 Close the box and continue or leave the box open until Consistency Check has completed Manual No SA67 0050 01 6 5 Running a Device Rebuild Running a Device Rebuild A rebuild is the re generation of user data and redundant data onto a replacement drive using existing redundant data Rebuilds have the following attributes e Rebuilds are fully automatic with generic controller setups e With ARM Auto Rebuild Management see Advanced Controller Options on page 4 4 enabled the user need only remove failed drives and restock with spare drives Operation with ARM disabled is not recommended e Arrays are rebuild candidates only if all of the logical drives use a redundant Raid level 1 3 5 0 1 e In dual active systems only the slot 0 controller will perform a rebuild and display the rebuild progress If you need to perform a device rebuild use the following procedure 1 Reinsert the removed drive that caused the failure if it is still a good drive or replace the failed drive with a new drive of equal
95. ion Functions Configuration functions are easily performed using RAID Assist an intuitive wizard like utility in the SAM Client component that simplifies the process of setting up or reconfiguring a disk array Just answer a few brief questions and RAID Assist automatically does the rest Use Manual Configuration for more control over drive group setup or individual configuration parameters Monitoring Functions The GAM Server component collects and disseminates information on disk array status and resource utilization The SAM Client component organizes this information through an intuitive graphical display Errors and events are recorded in a log file and in the Log Information Viewer window and if a problem is serious enough to warrant immediate attention operators can be alerted via popup windows if so desired Maintenance Functions The SAM Client manages or performs maintenance on individual disk arrays and drives with the appropriate authentication again by means of the graphical user interface This includes removing physical devices from operation in a functioning disk array also known as killing or off lining a drive rebuilding drives selecting hot spares and initiating a consistency check or parity on arrays that are configured to support redundancy The GAM Server executes the management instructions specified by the SAM Client 1 2 SAM Client User s Guide Introduction Requirements Since SAM is
96. ken service manual Management hardware failure Power supply is not present 326 1 Temperature is over Room Turn off the safe limit Failure is temperature is system and let it imminent too high cool down Fan failure Adjust the room Sensor failure temperature 327 3 Temperature is Room Replace fan above working limit temperature is Adjust the room high temperature Fan failure 328 4 Normal temperature Faulty fan has None has been restored been replaced Room temperature was reduced 329 4 Temperature sensor Enclosure Refer to is not present management enclosure connection is manufacturer s broken service manual Management hardware failure Sensor is not present 330 3 Enclosure access Enclosure Refer to Critical management enclosure connection is manufacturer s broken service manual Management hardware failure SAM Client User s Guide Table A 2 SANArray Manager Events Event Information ID Severity Description Details Actions 331 4 Enclosure access Enclosure has None has been restored been fixed or replaced 332 1 Enclosure access is Enclosure Refer to offline management enclosure connection is manufacturer s broken service manual Management hardware failure 333 1 Enclosure soft Enclosure has Refer to addressing duplicate loop enclosure detected IDs soft manufacturer s addressing service manual Potential data
97. key to end the locate operation and return to normal status Click the Close button or press the Enter key to close the dialog box Settings Page Select the Settings tab to display Enclosure Information Settings Figure 5 10 Enclosure Information x Information Details Settings Temperature Settings J Overtemp Warning 54 B g Overtemp Failure 5s a g Undertemp Waming 15 4 J H Undertemp Failure 8 m g al De select All Figure 5 10 SES Enclosure Information Settings Page The Enclosure Information Settings page displays the current settings for the Over Temperature Shutdown thresholds in degrees Centigrade and allows you to change those settings Settings can be selected one enclosure at a time or all enclosures can be set at once The parameters that are set on this display are e Overtemp Failure This is the high safe limit If the enclosure temperature exceeds this setting an over temperature shutdown is activated e Overtemp Warning This is the high working limit If the enclosure temperature exceeds this setting an event is reported in the event log e Undertemp Warning This is the low working limit If the enclosure temperature falls below this setting an event is reported in the event log Manual No SA67 0050 01 5 17 Process Status Monitoring e Undertemp Failure This is the low safe limit If the enclosure temperature falls below this setting an over tempera
98. le RAID solution available today FAT FAT 32 File Allocation Table a distribution table maintained by an operating system on a hard disk that provides a map of the clusters the basic unit of logical storage on a hard disk that a file has been stored in FAT 32 supports 32 bit processors Fault Tolerance Failure Tolerance The ability of a system to continue to perform its function even when one of its components has failed A fault tolerant system requires redundancy in disk drives power supplies adapters controllers and cabling Mylex RAID controllers offer high levels of fault tolerance Flash ROM Memory on an adapter containing software that can be reprogrammed without removing it from the board Format A pre established layout for data Programs accept data as input in a certain format process it and provide it as output in the same or another format All data is stored in some format with the expectation that it will be processed by a program that knows how to handle that format Gigabit 10 1 000 000 000 bits Abbreviated as Gb Gigabyte 230 1 073 741 824 bytes Abbreviated as G or GB Manual No SA67 0050 01 Glossary 7 Glossary Global Array Manager GAM A Mylex RAID management utility that allows a system administrator to configure monitor and manage network RAID storage from anywhere in the world GAM can communicate critical information via e mail fax pager SNMP or the launching of an
99. le Refer to power supply AC powersupply AC enclosure failed failed manufacturer s service manual 309 3 Uninterruptable Uninterruptable Refer to power supply power supply enclosure battery low battery low manufacturer s service manual SAM Client User s Guide Table A 2 SANArray Manager Events Event Information ID Severity Description Details Actions 310 1 Uninterruptable Uninterruptable Refer to power supply failed power supply enclosure failed manufacturer s service manual 311 4 Uninterruptable Uninterruptable None power supply power supply normal normal 320 1 Fan failure Broken cable Replace fan connection Fan failure 321 4 Fan has been Faulty fan has None restored been replaced Cable is connected properly 322 4 Fan is not present Enclosure Refer to management enclosure connection is manufacturer s broken service manual Management hardware failure Fan is not present 323 1 Power supply Broken cable Refer to failure connection enclosure Power supply manufacturer s failure service manual 324 4 Power supply has Faulty power None been restored supply has been replaced Manual No SA67 0050 01 Overview Table A 2 SANArray Manager Events ID Severity Description Details Actions 325 4 Power supply is not Enclosure Refer to present management enclosure connection is manufacturer s bro
100. line State configured Physical Device Rebuild State E34 Physical Device Unconfigured Spare Physical Device Ce Logical Drive Critical State E Logical Drive Consistency Check State H Logical Drive Online State configured x Logical Drive Offline State 3 8 SAM Client User s Guide Startup amp Navigation Menu Bar and Menus SANArray Manager Client contains a menubar Figure 3 5 in the SANArray Manager window File View Administration Window Help Figure 3 5 Menu Bar File Menu The File menu Figure 3 6 contains the following options Open Configuration Ctrl 0 Save Configuration Ctrl S Clear Configuration Exit Figure 3 6 File Menu e Open Configuration Ctrl O Loads a configuration from disk and saves it to the controller See Loading a Configuration from Disk on page 4 37 e Save Configuration Ctrl S Saves a configuration file to a new filename disk and or directory e Clear Configuration Removes configuration information for the selected controller A Caution Although there are confirmation checkpoints and warnings following selection of this option remember that all existing configuration and file data on all drives connected to the controller will be deleted e Exit Exits the SANArray Manager Client Manual No SA67 0050 01 3 9 Navigating SANArray Manager Client View Menu The View menu Figure 3 7 contains the following options v Global Sta
101. ller Manual No SA67 0050 01 4 21 Running RAID Assist A warning confirmation box opens see Figure 4 19 WARNING x Changing configuration is data destructive If you want to proceed confirm by typing the word YES ea Figure 4 19 WARNING Before Applying the Configuration 4 Type YES and click OK or press the Enter key if you are sure you want to apply the new configuration and overwrite the old If you re not sure click Cancel Note In Assisted Configuration Add Logical Drive and Expand Array function very similarly to the New Configuration option In each case RAID Assist leads you step by step through the relevant questions for the task Manual Configuration Manual Configuration provides four options e Edit Configuration Displays the current configuration disk arrays and logical drives and allows you to make any changes that you require Note Edit Configuration should not be used when you are clearing the entire configuration To clear a configuration use the File gt Clear Configuration menu option e New Configuration Sets up a new configuration on the controller deleting the previous configuration and data if any e Add Logical Drive Sets up additional arrays logical drives leaving the existing array s intact At least one array must be configured on this controller and unconfigured capacity must exist 4 22 SAM Client User s Guide Configuration Expand Array
102. log file replace a log file enable event logging event log file name Event notifications are managed here using the Launch Application feature e Preferences Provides the ability to enable several configuration features such as spanning mixing drive sizes auto configurator adding hot spares and searching for SANmapping groups Preferences also allows the ability to set the Data and Event ports as well as the Event Log view size 3 12 SAM Client User s Guide Startup amp Navigation Window Menu The Window menu Figure 3 10 is a standard feature of Windows 95 98 Windows 2000 Windows NT and Windows XP It is implemented as such in SANArray Manager Tile Cascade 1 Global Status View 2 Log Information Viewer v 3 Controller View 204 32 130 202 Controller 2 gamroot Figure 3 10 Window Menu Help Menu The Help menu Figure 3 11 identifies the on line help options available within the SANArray Manager Client e Contents Displays a list of available help topics e About SANArray Manager Displays the Windows standard About box Help Contents Fi About SANArray Manager Client Figure 3 11 Help Menu Toolbar and Toolbar Icons SANArray Manager Client contains a toolbar Figure 3 12 in the SANArray Manager window ae FE Sd 2 Figure 3 12 Toolbar Manual No SA67 0050 01 3 13 Navigating SANArray Manager Client Each toolbar button corresponds to a function available from the men
103. low 1 Item 1 is the menu bar There are five menus with several selections each The contents of the menus and the functionality of several of the most important selections will be described throughout this guide 2 Item 2 is the toolbar There are six toolbar icons representing seven of the most useful functions available in SANArray Manager The identity of each toolbar icon and an explanation of the purpose of each will be described in later sections of this chapter Manual No SA67 0050 01 Navigating SANArray Manager Client 3 Item 3 is the server group selection box When selected the box displays the names of each server group that is in contact with the current client workstation Each group may consist of multiple servers You may select a specific server group to view or select All Servers if you want to view all the servers that are defined in all server groups The servers defined in the selected group will display in the Global Status View window Item 4 is the controller selection box When selected the box displays the controller name C 0 C 1 etc and controller type DACFFX etc of each controller connected to the currently selected server Also included is the controller operational status light which indicates the status of all sub components of the controller system green online yellow critical red X offline For controller dual active pairs a double pointed white arrow connects th
104. mal configuration without user input based on characteristics of the available devices Assisted Configuration Assisted Configuration provides two options e New Configuration Sets up a new configuration on the controller deleting the previous configuration and data if any e Add Logical Drive Sets up additional arrays logical drives leaving the existing array s intact At least one array must be configured on this controller and unconfigured capacity must exist 4 14 SAM Client User s Guide Configuration For example open New Configuration as shown in Figure 4 12 Assisted Configuration Figure 4 12 Select New Configuration Assisted Configuration walks you step by step through a new configuration Figure 4 13 Each tab in the Assisted Configuration dialog box collects information about an important aspect of the configuration you wish to set up During this process you provide answers to several questions Manual No SA67 0050 01 4 15 Running RAID Assist Fault Tolerance Tab Configure the following options Figure 4 13 for fault tolerance 1 Do you want Fault Tolerance Yes No 2 Do you want a Hot Spare Yes No Assisted Configuration New Configuration 204 32 130 202 Controller 2 Fault Tolerance Raid Level Logical Drives Optimization Figure 4 13 Assisted Configuration Fault Tolerance 4160 SAM Client User s Guide Configuration RAID level tab i
105. mation displays the following about the currently selected logical drive e The logical drive number in the window s titlebar 5 10 SAM Client User s Guide Monitoring e The RAID level at which the logical drive is configured e Whether the logical drive s configuration is optimized for speed optimized for capacity and fault tolerant Yes No e The logical and physical size of the logical drive e The stripe size and cache line size in use by the logical drive e Whether write back cache is enabled or disabled e The operational status of the logical drive e The total amount of capacity held by this logical drive shown in a bar graph If write back cache is disabled click the Enable Write Cache button to enable the cache If write back cache is enabled click the Disable Write Cache button to disable the cache and use write through caching If the Consistency Check button is enabled you may manually run a consistency check on this logical drive A Consistency Check dialog box will open asking if a Consistency Check with restore is wanted If the logical drive has been placed offline due to some external cause such as a power failure affecting an enclosure click Force On Line to return the logical drive to an active state A warning window appears asking for confirmation of the force online procedure A Caution Forcing a logical drive online should only be done in a power failure recovery situation Doing so at
106. n the computer Manual No SA67 0050 01 Glossary 13 Glossary Plug and Play The ability to install peripheral cards or other devices without requiring manual configuration by the user PROM Programmable Read Only Memory memory that users with appropriate instructions can reprogram Protocol A special set of rules for transmitting data between two devices in a telecommunication connection Queue A line of things commands or data waiting to be handled usually in sequential order starting at the beginning or top of the line or sequence RAID Redundant Array of Independent Disks a collection of two or more disks working together in an array Mylex RAID controllers implement this technology to connect up to 15 SCSI devices per channel The different forms of RAID implementation are known as RAID levels See also Berkeley RAID Levels Disk Array and RAID Levels The system manager or integrator selects the appropriate RAID level for a system This decision will be based on which of the following are to be emphasized e Disk Capacity e Data Availability redundancy or fault tolerance e Disk Performance RAID Advisory Board RAB An association of companies whose primary intention is to standardize RAID storage systems IBM is a member of RAB Glossary 14 SAM Client User s Guide Glossary RAID EzAssist A Mylex RAID management utility for configuration and maintenance of RAID controllers RAI
107. nager Client x Stop all 1 0 before downloading new firmware Click OK to download Ea Figure 6 9 Stop All I O Message 6 8 SAM Client User s Guide Maintenance Processes The Flash Utility dialog box appears as shown in Figure 6 10 m Flash file selection Apply Cancel Figure 6 10 Flash Utility Dialog Box The Flash Utility dialog box comes up with no information specified To do a flash upgrade 1 Type the name of the appropriate image file IMA in the Flash file selection box or click the Browse button to locate the file If you select Browse the Open Image file dialog box is displayed as shown in Figure 6 11 Look in 5 3 Floppy 4 El cl E File name 41924hp ima Files of type Controller Firmware Image ima x Cancel Figure 6 11 Open Image File Dialog Box 2 Navigate to and select the image file name 3 Click Open Manual No SA67 0050 01 6 9 Using the Flash Utility Once you ve specified an appropriate image file the Apply button becomes available in the Flash Utility dialog box and the Flash file selection area displays details regarding the MA file Figure 6 12 Flash Utility xi m Flash file selection fa 441924hp ima Firmware Image Information Target Controller SX Type 0 Version 4 19 Build 24 Mise 0x00000000 Debug 0x00000000 Date 073198 Time 142235 Apply Cancel Figure 6 12 Addi
108. ner has been removed A 30 SAM Client User s Guide Table A 2 SANArray Manager Events Event Information ID Severity Description Details Actions 418 2 BBU out of service BBU will not be Replace BBU able to power the cache if AC power fails Firmware will switch WriteBack logical drives to WriteThrough 419 3 Updated partner s Updated None status partner s status 420 3 Relinquished Relinquished None partner partner 421 3 Inserted partner Inserted partner None 422 3 Dual controllers Dual controllers None enabled enabled 423 3 Disabled partner Disabled Refer to partner enclosure manufacturer s service manual 424 3 Dual controllers Dual controllers None entered nexus entered nexus 425 1 ControllerbootROM Wrong firmware Contact your image needs to be image file service reloaded downloaded representative to MAC address reload the boot changed ROM image 426 0 Controller is using MAC address Contact your default non unique lost or not set service World Wide Name representative to set the controller MAC address Manual No SA67 0050 01 Overview Table A 2 SANArray Manager Events ID Severity Description Details Actions 427 2 Mirror race recovery Some physical Run consistency failed disks may have check and failed restore consistency 428 0 Mirror race on Logical device is Replace failed critical l
109. ntelligent BBU e set the low power threshold The Intelligent BBU s features and functionality are described in Battery Backup Unit Monitoring and Maintenance on page 5 22 Manual No SA67 0050 01 3 11 Navigating SANArray Manager Client SANArray Manager simply offers a way of keeping up to date as to the condition and charge in the battery e Scan Devices Scans for new devices that have recently been added and which are not currently identified within SANArray Manager Client e Advanced Functions Opens a submenu Figure 3 9 from which you can select the following options e Flash Utility Provides the ability to upgrade controller firmware as new maintenance releases become available e Shutdown Enables clean shutdown of the controller system leaving the battery charged This feature does not actually shut down the controller system e Enclosure Discovery Starts the SES monitoring process for a new Enclosure Only performed if an SES device is present or an SES process is running e Retrieve Debug Dump Retrieves an unread debug dump from the controller and saves the information to a file Advanced Functions Flash Utility F Shutdown Settings 7 Enclosure Discovery Preferences Retrieve Debug Dump Figure 3 9 Advanced Functions Submenu e Settings Opens a tabbed dialog box in which you can specify the Event Logging settings that you desire Examples of such settings include append to
110. of the changes made with the Apply button De select All De selects all host ports and causes all speed radio buttons to be disabled until at least one host port is selected e Auto Negotiate Sets an Auto Negotiate speed for the host port s selected Manual No SA67 0050 01 4 9 Running RAID Assist e 1 Gbps Sets a 1 Gigabits per second speed for the host port s selected e 2 Gbps Sets a 2 Gigabits per second speed for the host port s selected Note Only supported speeds are enabled Set any of the following Disk Channels options e Auto Negotiate Sets an Auto Negotiate speed for all the backend disk channels e 1 Gbps Sets a 1 Gigabits per second speed for all the backend disk channels e 2 Gbps Sets a 2 Gigabits per second speed for all the backend disk channels Note Only supported speeds are enabled Recording Your Changes Click the Apply button or press the Enter key to accept all of the changes in the Basic Advanced Expert Fibre and Speed Controller Options dialog boxes or the Cancel button to discard them Running RAID Assist RAID Assist is the SANArray Manager Client s wizard for the setup and configuration of new logical drives and disk arrays In its simplest form RAID Assist provides an Auto Configuration option which immediately configures all available drives into an optimal configuration RAID Assist s Assisted Configuration sets up a new array according to predefin
111. oft3 DEVICE ADDRESS ctl 1 chn Otgt 1 DESCRIPTION hard disk has been placed online CAUSE Could be one or more of the following Rebuild Completed Device was configured Manual on line was done REQUIRED ACTION m Figure 5 1 Event Information Window A variety of information about the event is displayed to aid in troubleshooting The Event ID and Severity Level are displayed in the window s titlebar SOURCE DEVICE ADDRESS and DESCRIPTION redisplay information from the original event line The most useful fields are e CAUSE Possible reasons that the event occurred and e REQUIRED ACTION What you should do in response to this message Informational messages will most likely have no required actions Critical Serious Error and Warning messages may specify useful required actions 3 Click OK or press the Enter key to close the event information window Manual No SA67 0050 01 5 3 Controller Monitoring Controller Monitoring After a client and server connection is made through sign on the SANArray Manager Client opens the Controller View window for the selected controller see Components of the Controller View Window on page 3 6 for a detailed description Displaying Controller Information Open Controller Information by clicking Administration gt Controller Information on the menu bar or the Controller Information icon as shown in Figure 5 2 5 4 Administration Sian wr Dein
112. ogical drive critical physical disk and rebuild 429 4 Controller One or more None connected to controllers cluster detected during scan and entered nexus with those controllers 430 4 Controller All other If this was an disconnected from controllers in unexpected cluster cluster are event refer to inaccessible due service manual to controller and correct the powered off or failure controller failure or cable failure 431 3 Controller User improperly Run consistency improperly shutdown the check to verify shutdown Datamay controller that logical drive have been lost resulted in consistency inconsistent If needed logical drive and restore data from or data loss backup 432 4 Dual active Replacement None automatic flash of replacement controller controller is being flashed with survivor s firmware SAM Client User s Guide Table A 2 SANArray Manager Events Event Information ID Severity Description Details Actions 433 2 Dual active Jumper settings Replace adjust negotiation failed do not match or add jumpers components so that the controllers have the same jumper settings 434 2 Dual active Controller IDs Replace adjust negotiation failed are not unique or add IDs Both controllers components so have the same that the ID controllers have the correct IDs 435 2 Dual active Board types Replace negotiation failed differ appropriate board
113. on can also be found in the text file EventDef txt in the SANArray Manager Client Files folder of the SANArray Manager directory Severity Table A 1 Severity Level Priorities and Descriptions Serious Description Controller failure The failure of a major component within the array enclosure For example a power supply fan or physical drive 2 Error Messages such as a consistency check fails or a rebuild on a drive stopped because of errors 3 Warning Messages such as SANArray Manager has failed to kill a drive or failed to start a rebuild 4 Informational Messages such as sign ons and system startups When a consistency check or a rebuild has finished for example or a physical drive has been put on standby Table A 2 SANArray Manager Events ID Severity Description Details Actions 1 4 A physical disk has Rebuild None been placed online completed Physical disk was configured Manual online was done 2 4 A physical disk has Device was None been addedasahot configuredandis spare available Manual No SA67 0050 01 Overview Table A 2 SANArray Manager Events ID Severity Description Details Actions 3 3 Physical disk error found Abad sector was found on the physical disk Mechanical failure on the physical disk Host SCSI device detected illegal instruction Target device generated unknown phase sequence If problem occurs frequently
114. onfiguration Exit Figure 4 31 Select Open Configuration 1 In the Open Configuration dialog box Figure 4 32 select the configuration file you wish to open to save to the controller Look in a SANArray Manager Client x Sl c File name mycontig ecf Files of type Contig Files ecf 7 Gaca Figure 4 32 Open Configuration Dialog Box Manual No SA67 0050 01 4 37 Loading a Configuration from Disk 2 Click Open to access the configuration file Changing the configuration is data destructive A warning message appears Figure 4 33 WARNING x O Changing configuration is data destructive If you want to proceed confirm by typing the word YES Ca e Figure 4 33 Open Configuration Warning Message 3 To confirm your decision to overwrite the existing configuration type YES then click OK or press the Enter key or Click Cancel to stop without applying the saved configuration 4 38 SAM Client User s Guide Configuration Saving a Configuration to Disk Saves a configuration file to a new filename disk and or directory Open Configuration Ctrl 0 Save Configuration Ctrl S Clear Configuration Exit Figure 4 34 Select Save Configuration 1 Inthe Save Configuration dialog box Figure 4 32 type a name for the configuration file you wish to save Save in ws 3 Floppy 4 z Sl c File name myConfig ect Save as type Contig Files e
115. onment for application programs Parity A method of providing complete data redundancy while requiring only a fraction of the storage capacity of mirroring The data and parity blocks are divided between the disk drives in such a way that if any single disk drive is removed or fails the data on it can be reconstructed using the data on the remaining disk drives The parity data may exist on only one disk drive or be distributed between all disk drives in a RAID group See also Rotated XOR Redundancy Parity Check A function used to verify the integrity of data on a system drive It verifies that mirror or parity information matches the stored data on the redundant arrays If the parity block information is inconsistent with the data blocks the controller corrects the inconsistencies See also Consistency Check Partitioning Where the full usable storage capacity of a disk or array of disks appears to an operating environment in the form of several virtual disks whose entire capacity approximates that of the underlying disk or array Physical Device Any device connected to some kind of hardware For example SCSI disk fibre disk network disk RAM disk etc Platform An underlying computer system on which application programs can run A platform consists of an operating system the computer system s coordinating program and a microprocessor the microchip in the computer that performs logic operations and manages data movement i
116. ons Software Driver Set of utilities and instructions for controllers to work in a specific operating system environment Spanning A process that provides the ability to configure multiple drive packs or parts of multiple drive packs In effect spanning allows the volume used for data processing to be larger than a single drive Spanning increases I O speeds however the probability of drive failure increases as more drives are added Manual No SA67 0050 01 Glossary 19 Glossary to a drive pack Spanned drive packs use striping for data processing See also Striping and Drive Groups Drive Packs Storage Area Network SAN A high speed open standard scalable network of storage devices and servers providing accelerated data access Stripe Order The order in which SCSI disk drives appear within a drive group This order must be maintained and is critical to the controller s ability to rebuild failed drives Stripe Size The size in kilobytes 1024 bytes of a single I O operation A stripe of data data residing in actual physical disk sectors which are logically ordered first to last is divided over all disks in the drive group Stripe Width The number of striped SCSI drives within a drive group Striping The storing of a sequential block of incoming data across multiple SCSI drives in a group For example if there are 3 SCSI drives in a group the data will be separated into blocks Block 1 of the da
117. ontroller Options Basic Controller Options In the Basic Controller Options dialog box Figure 4 2 you have several options Controller Options Figure 4 2 Basic Controller Options Dialog Box aoo SAM Client User s Guide Configuration Enable or disable by checking or unchecking any of the following Global Parameters e Read Ahead When enabled reads data to the next stripe boundary based on stripe size and retains in cache any data beyond the size of the actual read request e Super Read Ahead SRA When enabled extends the Read Ahead process by always reading an extra cache line on a read request and reading an additional cache line when a cache hit occurs Most useful for applications where read sequential data is high e Background Initialization When enabled allows a logical drive to be initialized as a background operation while reads and writes are being performed e Rebuild Rate A rate of 50 assigns the maximum allowable resources to a drive rebuild or array expansion allowing the Rebuild or Expand to proceed at its fastest Lowering the number devotes more resources to I Os and consequently slows the Rebuild or Expand Array process This parameter takes effect immediately without resetting the controller s Change any of the following Startup Parameters e Spin up Change if you do not want automatic drive spin up The other option is to spin up at power on e Devices Between Spins Numbe
118. or greater capacity 2 Double click the relevant physical device in the Controller View window The Disk Device Information dialog box will open and the Rebuild button should be available Figure 6 7 6 6 SAM Client User s Guide Maintenance Processes Disk Device Information Channel 0 T arget 3 Lun 0 Device Inquiry Data Vendor SEAGATE Product ST173404FC Revision 0003 Bus Width on Syne No Soft Reset No ANSI Version SCSI 3 Linked Yes CmdQue Yes Serial 3CEO254V Loop ID 3 m Device State Nego Transfer Speed 100 MB Sec Status 3 Dead Nego Bus Width ot Sector Size 512 Bytes Physical Size 70007 MB Failure Indicator Contig Size 67122MB _s0 Devstauso m Device Errors Enclosure Soft E eg Parity Er Bly oft Errors x y Errors nne a Hard Errors 0 Misc Errors 0 Wake Hot Spare Make Online Make Offline Rebuild Prepare to Remove Locate Close Figure 6 7 Rebuild Button Available for This Disk Device 3 Click the Rebuild button in the Disk Device Information dialog box Controllers perform rebuilds automatically You need only click the Rebuild button to restart a stopped rebuild and only on slot 0 if dual active Rebuild runs and the Long Op Status box appears see Rebuild Status on page 5 19 Close the box and continue or leave the box open until Rebuild has completed When rebuild has completed the selected physi
119. or or warning condition in a RAID subsystem such as a power fan or drive failure e Any administrative activity taking a drive off line killing or rebuilding a drive Note It is recommended that the SANArray Manager Client be kept continuously active Opening the Log Information Viewer The Log Information Viewer is opened when SAM Client is started and at least one controller is detected see Components of the Log Information Viewer on page 3 5 The viewer displays the contents of samcl log an ASCII text file This file contains a detailed chronological log of all the events that occur while this session of the program is executing Opening an Event Information Window If you wish to obtain additional information about any event displayed in the Log Information Viewer the program allows you to open an event information window Appendix A documents the entire list of events descriptions possible causes and actions To open the event information window for a particular event 1 Check that the Log Information Viewer is displayed 2 Determine which event you would like more information about scroll the Log Information Viewer if necessary and double click anywhere along the event line or double click in the Event ID field 5 2 SAM Client User s Guide Monitoring An event information window for your selected event is displayed An example is shown in Figure 5 1 Event ID I 1 Severity 4 x SOURCE s
120. plays an icon showing if the event is informational a warning etc plus the identification number assigned to this event e Severity The severity level of this event e Source The IP address or name of the server that is the sender of this event e Source Time Year month day time of day at the source server s location when this event occurred e Device Address Relevant channel target or other data pertaining to the origin of this event e Description Text of the message describing what occurred e Sequence Seq Number representing where this event fell in a sequence of possibly related events Local Time Year month day of the month yyyy mm dd time of day hh mm ss at the client workstation s location when this event arrived Manual No SA67 0050 01 3 5 Navigating SANArray Manager Client Components of the Controller View Window Open the Controller View by double clicking any server icon in the Global Status View or as shown in Figure 3 2 Global Status View Statistics View Log Information Viewer Initialize Status Rebuild Status Consistency Check Status Expand Capacity Status Figure 3 2 Select Controller View The Controller View window Figure 3 3 and Figure 3 4 displays the following information about the controller currently selected in the controller selection box 3 6 Item 1 The number of channels on this controller each channel is d
121. pleted A new controller has been plugged in Controller has been powered on System has rebooted None 149 150 A logical drive has been deleted Anew configuration has been added A new logical device has been deleted Controller has been removed Controller has been powered off User started the None None Expand capacity 151 started online RAID expansion operation Online RAID None Expand capacity completed expansion completed 152 Expand capacity stopped with error Multiple physical disks failed It may not be possible to recover from this error Contact your service representative A 16 SAM Client User s Guide Table A 2 SANArray Manager Events Event Information ID Severity Description Details Actions 153 0 Bad blocks found Bad sector was found ona physical device during consistency check rebuild RAID expansion operation Runa consistency check with the restore option Restore data from a back up 154 155 Logical drive size changed System drive type changed Anew configuration has been added RAID Expansion has added extra capacity Anew configuration has been added RAID migration completed RAID expansion completed on RAID 1 None None 156 Bad data blocks found Possible data loss Bad blocks were found on multiple physical
122. priority rebuild started Restart the rebuild if required A 14 SAM Client User s Guide Table A 2 SANArray Manager Events Event Information ID Severity Description Details Actions 141 2 Rebuild stopped Due to an Try rebuild with error unknown error again on the controller rebuild failed 142 2 Rebuild stopped New physical Replace the new with error New disk failed device physical disk failed New physical disk is not compatible with MDAC hardware firmware 143 2 Rebuild stopped At least one It may not be because logical more physical possible to drive failed disks recover from this error Contact your service representative 144 4 Logical drive User started the None initialization started initialization Any previous data are lost 145 4 Logical drive Initialize None initialization done operation completed successfully 146 3 Logical drive User canceled Restart initialization the initialization initialization if canceled required 147 2 Logical drive One multiple Refer to the initialization failed physical device failure device s failed Controller has been removed Controller has been powered off event Manual No SA67 0050 01 Overview Table A 2 SANArray Manager Events ID Severity Description Details Actions 148 A logical drive has been found Anew configuration has been added MORE com
123. r of devices to spin up at one time A low number lessens the likelihood of a power drain e Initial Delay Number of seconds to wait before spinning up the first disk set e Sequential Delay Number of seconds between consecutive device spin up cycles Manual No SA67 0050 01 4 3 Setting and Modifying Controller Options Advanced Controller Options In the Advanced Controller options dialog box Figure 4 3 you have several options Controller Options a a M E C Figure 4 3 Advanced Controller Options Dialog Box Set the following Customizations Enable or disable by checking or unchecking e Conservative Cache Mode Turns off write cache while a controller failover condition persists allowing an extra degree of data safety e SAF TE Use of UPS Enables monitoring of uninterruptable power supply if it is also supported by the system enclosure e Restrict Reassign to One Block Restricts a reassign to the failing block If disabled reassigns will be for the entire current I O blocks not all of them failing e Smart Large Host Transfers When enabled allows selection of Coalesce fewer disconnects on large transfers on host data transfers When disabled allows As Available more disconnects on host data transfers The Smart Large Host Transfers function takes effect for transfers larger than the stripe size This parameter takes effect immediately without resetting the controllers 4400 60 C0
124. r system is measured Computer trade magazine laboratories frequently test and compare several new computers or computer devices against the same set of application programs user interactions and contextual situations The total context against which all products are measured and compared is referred to as the benchmark Programs can be specially designed to provide measurements for a particular operating system or application Berkeley RAID Levels A family of disk array protection and mapping techniques described by Garth Gibson Randy Katz and David Patterson in papers written while they were performing research into I O systems at the University of California at Glossary 2 SAM Client User s Guide Glossary Berkeley There are six Berkeley RAID levels usually referred to as RAID Level 0 through RAID Level 5 See also RAID Levels BIOS Basic Input Output System software that determines what a computer can do without accessing programs The BIOS contains all the code required to control the keyboard screen drives serial communications and other functions Usually the BIOS is built into a ROM chip installed on the motherboard so that the BIOS will always be available and not affected by disk failure Sometimes the BIOS is recorded on a flash memory chip BIOS Config Utility BIOS based Configuration Utility a utility program sequence used upon powerup for configuring various hardware elements in a system Booting or Boo
125. rflow service representative 12 1 A physical disk has A physical disk Replace the failed failed physical disk A user action caused the physical disk to fail Manual No SA67 0050 01 Overview Table A 2 SANArray Manager Events ID Severity Description Details Actions 4 A new physical disk has been found A physical disk has been powered on A new physical disk has been added Controller was powered on Controller was added System has rebooted None A physical disk has been removed User removed an unconfigured physical disk An unconfigured physical disk failed A controller was removed A controller was powered off Replace the device if needed A previously configured physical disk is now available Physical disk was set to unconfigured None Expand capacity started A RAID expansion operation was started or restarted None Expand capacity completed RAID expansion finished None Expand capacity stopped with error Multiple disks may have failed Contact your service representative SAM Client User s Guide Table A 2 SANArray Manager Events Event Information ID Severity Description Details Actions 3 SCSI command timeout on physical device Physical device has been removed Physical device failed Command time out value is not correct R
126. rities Vv feamelert i i 4 Browse M ev a eS E 4 Vv fremotelog Af EAE oMir2r3sT 4 A el eae Led igi ae bila Command Line Substitutions ZizeventID s severity level 5 Server t source time d dev address D Description q sequence num l local time Test f Full description Figure 3 20 Launch Application Alarm Setup 2 Inthe Launch Application box e Enable or disable each Command field using the Enable check box as desired In the Command field type the name of an application to launch If you don t remember the name or path of the application click the Browse button The Command Line Substitutions pane shows various format specifiers and their meanings Place these format specifiers in the Command field as command line options as desired and when an event occurs SAM will replace the format specifiers with the indicated portion of the event data Depending on the underlying operating system or shell it may be necessary to quote some portions of the command line Note that some of the replacements will result in multiple words separated by whitespace to appear on the command line Check the Launch for Severities checkbox es that corresponds to the event severity level s at which you would like to launch each Manual No SA67 0050 01 3 23 Modifying Preferences application For example in Figure 3 20 all level 0 and level 1 events will result in a launch application 3
127. rive sssssssseeereerirerrierrrsrenes 5 8 Displaying Logical Drive Information seeren 5 10 Enclosure Monitoring and Management csseeeessereeeeeeeneeees 5 12 Information Page eeeseeeeseeeeeseeeeeeeeeeeeeeeeseeeeeeneeeenaeees 5 13 Details Page iiinn cnn chet ohio 5 14 Settings Page s xis cesses ed deeds deere el 5 17 Process Status Monitoring cecceeeceeseeeeeeeeeeeeeeeeeeseeeeeeeeeneeeeeeeeas 5 18 Rebuild Stats inaia cect eit etei iieiea drii iaeiiai 5 19 Consistency Check Status cecceeceeeeeeeeeseeeeeeeeeneeeeeeeneeeeaees 5 20 Expand Capacity Status 0 0 cece cecceeeeeeeeeeeeeneeeeeesneeseaeeeneeeaees 5 21 Battery Backup Unit Monitoring and Maintenance seeen 5 22 Power Levels 3 ci eahe aid ona aaeend 5 23 Batten Status e ai an eea ea a aE anata titi 5 23 ACUONS rs denia a a aa a ar aar a ite 5 24 Conditioning the Battery 0 0 ce eeceeeeeeeeeeeeeeeeeeneeeeeeeeeees 5 25 Manual No SA67 0050 01 vii Chapter 6 Maintenance Processes Naligo e lire rie AEE ET asiats E ETT 6 1 Running a Logical Drive Initialization 2 0 eee ee eeeeeeeseeeeeneeeeeneereaes 6 2 Running a Logical Drive Consistency Check esceseeeeeeeeeeneeees 6 4 Running a Device Rebuild ee eeeeseeseeeeeeeneeeeeeneeteneeeesneeeeneaeeeeaas 6 6 Using the Flash Utility sirisser rspp n ao 6 8 Enclosure DiSCOVESY cesecceceeeceeeeeeeeeeeeeseseeeneneeeseneeeesseeeneneneness 6 12 Retrieving a Debug DUMP
128. rmation window 5 2 local time 3 5 sequence 3 5 severity 3 5 Index 2 source 3 5 source time 3 5 Event Logging 3 22 Events 5 2 A 1 Exit 3 9 Exiting GAM Server 3 15 Exiting SANArray Manager 3 15 Expand Array 4 15 4 23 Expand Capacity 5 21 eXtremeRAID G 6 F FAT FAT 32 G 7 Fault Tolerance Failure Tolerance G 7 File List Linux 2 5 Windows 2 2 Firmware and BIOS Versions 5 5 Flash ROM G 7 Flash Utility 6 8 Force Simplex 4 7 Format G 7 G Gigabit G 7 Gigabyte G 7 Global Array Manager GAM G 8 Global Array Manager Server 1 2 Global Status View 3 10 Global Status Window 3 3 GUI G 8 H Hardware Requirements client 1 3 Help 3 14 3 21 Host Bus Reset Delay 4 7 l T O G 8 T O Intensive G 9 I Os Per Second G 9 120 G 9 Immediate RAID Availability G 8 SAM Client User s Guide Initial Delay 4 3 Initialize logical drives 3 11 6 2 Installation 2 1 Intelligent Battery Backup Unit 5 22 actions 5 24 battery status 5 23 conditioning 5 25 maintenance 5 22 power levels 5 23 Intelligent BBU 3 11 Interface G 8 Internet G 8 Intranet G 8 Introduction 1 1 ISM G 9 J Java G 9 K Kill Partner 5 6 Killing a Drive 1 2 Kilobyte G 9 L LAN G 9 Latency G 10 Log Information Viewer 3 3 3 10 5 2 Logical drive G 10 deleting 6 19 initialization 3 11 6 2 Logical Drive Information 5 10 6 4 Logical Drive Number 5 10 Logical Drive States G 10 Logical Drives 5 10 Long Op Status 5 18 LUN G
129. roller Options Expert Controller Options In the Expert Controller options dialog box Figure 4 4 you have several options Controller Options Basic Advanced Expert Fibre Speeds r General I Enable Simplex No RSTCOM T Enable On Q Full Give Busy I Disable Busy Status During Failback T Enable Vendor Unique TUR Status I Enable No Pause On Controller Not Ready I Disable CC For Invalid LUN M Enable Auto Restore I Enable Reset Propagation Speed I Enable Force Simplex 19 2K 7 r Host Bus Reset Delay 14 K E r Controller Present Fault Signals I Enable SetA C SetB r Debug Port Usage I Enable Multi port Reset I Enable Over Temperature Shutdown Apply Cancel Figure 4 4 Expert Controller Options Dialog Box Set any of the following Expert options Enable or disable by checking or unchecking Simplex No RSTCOM When enabled allows a controller not to assert a reset signal to its partner controller Simplex environments only e On Q Full Give Busy When enabled if a command is received and the controller detects a full queue it will return a busy status rather than Queue Full This helps hosts that do not accurately deal with Queue Full status e Busy Status During Failback When enabled causes all pending commands to be quietly dropped during failback This is intended to help hosts that are confused by Queue Full e Vendor Unique TUR Te
130. rs Megabit A million bits used as a common unit of measure relative to time in seconds as an expression of a transmission technology s bandwidth or data transfer rates abbreviated as Mb Megabits per second Mbps is a frequent measure of bandwidth on a transmission medium Megabyte 27 1 048 576 bytes One megabyte can store more than one million characters Abbreviated as M or MB Mirrored Cache A cache memory that has duplicate data from another controller In the event of failure of the original controller the second controller can take the cached data and place it on the disk array Mirroring The complete duplication of data on one disk drive to another disk drive this duplication occurs simultaneously with each write operation each disk will be the mirror image of the other also known as RAID Level 1 see RAID Levels All Mylex RAID controllers support mirroring M O R E Mylex Online RAID Expansion an advanced configuration mode that allows expansion of any unconfigured or hot spare drive into the expandable drive group while the controller is online with the host For example a system using a five disk drive RAID set can add another disk drive to create a six disk drive RAID set The M O R E operation can be performed on all RAID levels except JBOD Mylex s Global Array Manager GAM supports two M O R E features Manual No SA67 0050 01 Glossary 11 Glossary e Expand Capacity allows logical
131. s e Display Hours Displays power values in hours and tenths of hours e Refresh Updates the Power Levels and Battery Status groups It is useful during a lengthy operation such as a recondition to update the dialog without leaving it and re entering Battery Status The Battery Status area of the Intelligent Battery Backup Unit dialog box contains the following e Battery Type The battery pack type Available options are dependent on the controller hardware For additional details consult the OEM hardware reference manual for the particular controller of interest e Version Version number for the BBU type Version selection numbers are from 0 to 255 The version number used for the first release is 1 Manual No SA67 0050 01 5 23 Battery Backup Unit Monitoring and Maintenance The following are read only checkbox items which indicate the battery status Low Power Alarm A low power condition exists as defined when the Current Power value drops below the Low Power Threshold value Never Reconditioned Battery has not been fully discharged before it was charged up A new battery will have this checked until it has been fully discharged and then charged by the Recondition Battery selection under Actions Reconditioning Needed Battery has not been reconditioned within 30 discharge charge cycles Select Recondition Battery under Actions then click Apply Reconditioning Active Process of discharging recharging the batt
132. s and their mirrored pair are exactly the same For RAID Level 3 or RAID Level 5 a consistency check calculates the parity from the data written on the disk and compares it to the written parity A consistency check from Mylex utilities such as Global Array Manager GAM or RAID EzAssist give the user the ability to have a discrepancy reported and corrected See also Parity Check Critical State A Logical Drive is in a critical state if it has been configured at RAID level 1 3 5 or 0 1 and one and only one of its SCSI drives is not online A logical drive is considered critical because any failure of another of its SCSI drives may result in a loss of data Note I O operation can only be performed with system drives that are online or critical Cyclical Redundancy Check CRC An error detection tool found on Ultra 160 SCSI Ultra3 SCSI This tool increases the odds for error free data Glossary 4 SAM Client User s Guide Glossary DACCF Disk Array Controller Configuration File utility a diskette based configuration utility for RAID configuration Data Transfer Rate The amount of data per unit of time moved through a channel or J O bus in the course of execution of an I O load usually expressed in MBps Degraded Mode A RAID mode used when a component drive has failed Device Driver A software program that controls a particular type of device attached to a computer such as a RAID s
133. st With the Define Server Groups dialog box open Figure 3 15 do the following 1 Click the Add button under the Servers section of the dialog box 2 In the Adding Item dialog box type the IP address of the server that you are adding If you re running SANArray Manager Client under Linux Windows 2000 Windows NT Windows Me or Windows XP you may instead type the name of the server 3 Click OK or press the Enter key The Define Server Groups dialog box will reappear with the newly defined server added 4 To add more servers to the group repeat steps through 3 5 Click OK or press the Enter key in the Define Server Groups dialog box when you are finished After adding servers SANArray Manager returns to the Global Status window Note Select All Servers to see all servers in the Global Status view Manual No SA67 0050 01 3 17 Signing On to a Server Signing On to a Server This section describes the different server access levels and the methods of signing onto the SAM Client Security Access Levels The ability to perform certain actions within the SAM Client depends on your security access level There are three levels of security access Guest no sign on User and Administrator Note Do not confuse SAM s Administrator access level with the Windows log on name Administrator they are not the same The password gamroot is required to be established as a user on the s
134. st Unit Ready Status When enabled allows a vendor unique TUR effect A TUR sent to an offline LUN will get a hard error status returned e No Pause On Controller Not Ready When enabled if the controller is not fully started certain commands encounter a pause 4 6 SAM Client User s Guide Configuration This turns off the pause e CC For Invalid LUN When enabled disables the check condition affecting the handling of the Inquiry command when the referenced LUN is invalid e Auto Restore Default is Disabled When enabled in a dual active controller system Automatic Restore allows automatic recovery of a partner controller when a replacement is inserted If you enable this option you must also enable the Controller Present Fault Signals option e Force Simplex When enabled allows duplex firmware to work in a simplex environment by skipping some Active Active operations e Reset Propagation When enabled a reset detected by one port may be propagated out of the other ports including ports on the partner controller e Multi port Reset When enabled allows execution of an internal reset on a port only if a logical drive has been reserved through that port Over Temperature Shutdown When enabled if an over temperature condition develops the physical disks are spun down and the affected controller is taken off line Power to the controllers must then be cycled to return to normal operations Temperature thresholds
135. stack installed Refer to your server documentation and to the Windows documentation for more information on hardware and operating system requirements Manual No SA67 0050 01 1 3 Requirements 1 4 SAM Client User s Guide Chapter 2 Installation Installation Overview Installation of the SAM Client component requires one of the following operating systems e Windows 2000 e Windows NT 4 0 e Windows 98 e Windows Me e Windows XP e Linux using Wine This chapter assumes that the network administrator for this site will be performing these installation procedures If you are installing SAM Client you may also choose to install GAM Server and its subcomponents at the same time on the same system When installing GAM Server dialog boxes for the server component appear and require a computer restart before launching the SAM Client software Refer to the appropriate Global Array Manager Server Software Installation Guide and User Manual for GAM Server installation instructions Manual No SA67 0050 01 2 1 Installing SAM Client with Windows Operating Systems Installing SAM Client with Windows Operating Systems SANArray Manager software is shipped on an accompanying distribution CD ROM The file list and path is as follows where X represents the drive letter of your CD ROM drive X GAM WINNT or X GAM WIN2K _INST321 EX_ _USER1 HDR OS DAT _ISDEL EXE DATA TAG SETUP EXE _SETUP DLL DATAI CAB SETUP INI _S
136. t minimum a LUN 0 be defined in order for the controller to connect When a logical drive is selected the LUN Selection field and the Enable All Hosts check box become active If a LUN assignment exists for the logical drive it is displayed in the LUN Selection field The LUN Selection drop down box displays all valid LUNs that may be assigned to the selected logical drive Enable All Hosts allows a logical drive LUN assignment that is enabled for all hosts on the loop This allows all hosts on the loop access to the logical drive through the LUN without having to redefine the mapping as new hosts 4 28 SAM Client User s Guide Configuration are added to the loop Enable All Hosts mapping is the default mapping for all new configurations and old configurations that are converted to new configurations Note Enable All Hosts can generate an error if another logical drive is sharing a LUN with the logical drive being enabled and hosts have been assigned to the logical drive In this situation the operation is not allowed Host to Logical Drive Mapping Host to logical drive mapping associates hosts on the fibre channel loop to logical drives The hosts are displayed on the left side of the list including the state of the host and the host s identity either WWN or IP address see Figure 4 25 Host To Logical Drive Mapping Hosts HBAs ff 1 2 x x x x x xX 20 00 00 e0 8b 01 0d 3e xX 20 00 00 e0 8b 01 4888 x
137. ta 4 5 U User Access Level 3 18 Vv Vendor Unique Test Unit Ready Status 4 6 W WAN G 22 Web G 22 Write Cache 4 26 5 11 Write Through Verify 4 5 Write Back Cache G 22 Write Through Cache G 22 X XOR G 22 Index 6 SAM Client User s Guide fINVYLEX MOVING DATA gt SMARTER CORPORATE OFFICE 34551 Ardenwood Boulevard Fremont CA 94555 3607 Tel 510 796 6100 Domestic Sales Fax 510 745 8016 International Sales Fax 510 745 7521 www mylex com
138. ta will be stored on SCSI drive 1 block 2 on SCSI drive 2 block 3 on SCSI drive 3 block 4 on SCSI drive 1 block 5 on SCSI drive 2 and so on This storage method increases the disk system throughput by ensuring a balanced load among all drives Sustained Data Transfer Rate A rate of data transfer defined for continuous operation at a maximum speed level Glossary 20 SAM Client User s Guide Glossary Synchronous Data Transfer Data transmission synchronized to a defined time interval and is faster than asynchronous SCSI because there is no wait for acknowledgement of each byte from the receiving device up to 20MHz Compare with Asynchronous Data Transfer System Disk The disk on which a system s operating software is stored System Drives See Logical Drives TCP IP Transmission Control Protocol Internet Protocol the basic communication language or protocol of the Internet It can also be used as a communications protocol in intranets and extranets When set up with direct access to the Internet a computer is provided with a copy of the TCP IP program just as every other computer that you may send messages to or get information from also has a copy of TCP IP Terabyte A measure of memory capacity 240 power or roughly a thousand billion bytes that is a thousand gigabytes Throughput The number of I O requests satisfied per unit of time usually per second TPC C Tpm C The Transaction Processing P
139. ted Manual No SA67 0050 01 A 35 Overview Table A 2 SANArray Manager Events ID Severity Description Details Actions 641 3 Channel online Cable None reconnected 642 1 Back End SCSI bus Lost access to None dead data on SCSI bus 643 4 Back End SCSI bus Regained None alive access to data on SCSI bus 644 1 Back End fibre Lost access to Refer to the dead data on Fibre enclosure Channel manufacturer s service manual 645 4 Back End fibre alive Regained None access to data on Fibre Channel 700 3 Event log empty Tried to read None past last entry 701 3 Event log entries Tried to read an None lost entry that does not exist in the event log 702 3 Request sense A physical drive Interpret the has generated Key ASC ASCQ an error and take appropriate action 703 3 Set real time clock Real time clock None was set 800 3 New configuration Anew None received configuration was downloaded to controller A 36 SAM Client User s Guide Table A 2 SANArray Manager Events Event Information ID Severity Description Details Actions 801 3 Configuration Controller was None cleared told to clear the configuration 802 3 Configuration The controller None invalid found an invalid configuration 803 3 Configuration on The controller None disk access error could not read the configuration off of the disk 804
140. that define over temperature and under temperature conditions for each enclosure can be set on the Enclosure Information display refer to Settings Page on page 5 17 e Host Bus Reset Delay Allows the controller to reset the host in failover and failback situations When Disabled no SCSI bus reset is generated on the host 4 generates reset this many seconds after the failover or failback occurs Immediate generates immediate reset with no delay This is for host SCSI only e Controller Present Fault Signals Default is Enabled Enables the use of backplane signals for sensing the presence of or possible fault in the partner controller in a dual active controller configuration If you have enabled Auto Restore enable this function also This parameter is necessary for hot plugging controllers and automatic failback Manual No SA67 0050 01 4 7 Setting and Modifying Controller Options e Set Debug Port Usage Select SLP VT100 emulation or Debug mode e Set Debug Port Speed Sets the baud rate for the serial port from 2400 to 19200 baud Speeds are available as supported by the selected controller Fibre Controller Options In the Fibre Controller options dialog box Figure 4 5 you have several options Controller Options Basic Expert mes a 2e E Poo ag gt E Coro Pon af Figure 4 5 Fibre Controller Options Dialog Box Set any of the following Fibre options Node Name Retention
141. the controller The Prepare Drive for Removal option for dual active controllers is only available by slot O when operating in dual active mode Check the controller information to see which controller is in slot 0 The controller in Manual No SA67 0050 01 5 9 Physical Device and Logical Drive Monitoring slot 0 will be able to perform the Prepare Drive for Removal Click the Locate button to blink the LED of the physical device to reveal its location Click OK or press the Enter key to end the locate operation In any Device Information dialog box Click the Close button or press the Enter key to close the dialog box Displaying Logical Drive Information The icons on the right side of the Controller View window represent the logical drives created by configuring the physical drives Double click a logical drive icon to display information about a particular logical drive Figure 5 6 Logical Drive 0 Information 24 x RAID Level zp Fault Tolerant No Optimized for Speed Yes Optimized for Capacity Yes Logical Size 500 MB Physical Size 500 MB Stripe Size 64 KB Cache Line Size 64 KB Write Cache Enabled Status On Line Used Array Capacity AO Used 500 MB Total 41880 MB Used Capacity C Unused Capacity korce On Life Show Bad Dete Blacks Locate Consistency CHECK Disable Write Cache Figure 5 6 Logical Drive Information for a RAID Controller Logical Drive Infor
142. the Controller View window To make an SES Discovery request 1 Start Enclosure Discovery Select Administration gt Advanced Functions gt Enclosure Discovery Administration Sign Orin Deine Sever Groups RAID Assist Initialize Logical Drives Controller Information Enclosure Information Controller Options Intelligent BBU Scan Devices PGi Flash Utility Shutdown Enclosure Di ery Settings Preferences Retrieve Debug Dumo na Figure 6 15 Select Enclosure Discovery An Enclosure scan will be performed and will take approximately 20 seconds After the scan has been requested the following dialog box Figure 6 16 will instruct you to await the completion 6 12 SAM Client User s Guide Maintenance Processes SANArray Manager Client x n Enclosure Discovery operation in progress Please await event notification Figure 6 16 Enclosure Discovery Operation Inprogress Once the event signaling a new enclosure and its drives displays in the Log Information Viewer perform a Scan Devices to refresh the GUI Manual No SA67 0050 01 6 13 Retrieving a Debug Dump Retrieving a Debug Dump The Retrieve Debug Dump command Figure 6 17 allows you to retrieve an unread debug dump from the controller and save the information to a file extension RDD Offline applications must be used to examine the dump file SANArray Manager only supports retrieving and sa
143. this operation may take an extended period of time IO performance will be impacted From time to time run a consistency check on each of your fault tolerant logical drives This check scans the logical drive to determine whether consistency data has become corrupted and needs to be restored If you have reason to believe that logical drive consistency data is corrupted or if you wish to run a consistency check for maintenance reasons perform the following procedure 1 Double click a logical drive in Controller View right side of a Controller View window 2 Click the Consistency Check button in the Logical Drive Information dialog box to begin see Figure 6 5 Logical Drive 0 Information 2 x RAID Level As Fault Tolerant gt Yes Optimized for Speed Yes Optimized for Capacity Yes Logical Size 10352 MB Physical Size 15528 MB Stripe Size 64KB Cache Line Size 64KB White Cache Disabled Status Online Used Array Capacity AO Used 15528 MB Total 25176 MB Used Capacity C Unused Capacity Force On Line Locate Consistency Check Enable Write Cache Figure 6 5 Logical Device Information Window Select Consistency Check A message is displayed asking if you would like consistency to be restored in the event of errors Figure 6 6 6 4 SAM Client User s Guide Maintenance Processes Consistency Check Q Restore consistency if errors are found dur
144. tion details page 5 14 information page 5 13 SES monitoring 6 12 Session G 19 Settings 3 12 3 14 Settings Page over temperature shut down 5 17 Severity Levels A 1 Shutdown 6 17 Sign On 3 10 3 14 3 19 Signing On to a Server 3 18 Simplex No RSTCOM 4 6 SLP VT100 Emulation 4 8 SMART G 19 Smart Large Host Transfers 4 4 SMB G 19 SNMP G 19 Software Driver G 19 Software Requirements client 1 3 Spanning 4 33 G 19 Spin up 4 3 Starting SANArray Manager 3 1 Manual No SA67 0050 01 Index client component 3 1 server component 3 1 Startup amp Navigation 3 1 Status consistency check 5 20 expand array 5 21 expand capacity 5 21 icons logical drive consistency check state 3 8 logical drive critical state 3 8 physical device offline 3 8 physical device online state 3 8 physical device rebuild state 3 8 physical device unconfigured 3 8 spare physical device 3 8 initialize 5 19 Storage Area Network SAN G 20 Stripe Order G 20 Stripe Size 4 26 5 11 G 20 Stripe Width G 20 Striping G 20 Sustained Data Transfer Rate G 20 Synchronous Data Transfer G 21 System Disk G 21 System Drives G 21 T TCP IP G 21 Terabyte G 21 Throughput G 21 Toolbar 3 3 3 13 Icons display controller information 3 14 help 3 14 RAID Assist 3 14 refresh group button 4 31 refresh system button 4 31 scan devices 3 14 settings 3 14 sign on 3 14 icons 3 13 save as button 3 14 Index 5 TPC C Tpm C G 21 Transfer Rate G 22 True Verification of Da
145. tional Flash File Information 4 Compare the information for the new IMA with the current information to confirm that a flash is warranted for example that the IMA contains a newer version of code 5 Click Apply Because flashing new code to the controller erases what was there previously confirmation is required to proceed with the flash Figure 6 13 WARNING x This process is data destructive If you want to proceed confirm by typing the word YES C e Figure 6 13 WARNING Message for Flash 6 10 SAM Client User s Guide Maintenance Processes 6 Type YES then click OK or press the Enter key at the confirmation message The Flash Utility transfers the image data to the controller and resets the controller The following reset notification Figure 6 14 will display SANAtray Manager Client x A Initiating controller system reset Reset will take 30 seconds Figure 6 14 Firmware Reset Notification Manual No SA67 0050 01 6 11 Enclosure Discovery Enclosure Discovery The Enclosure Discovery feature allows you to add an SES enclosure s to a configured system while the system continues to operate This feature starts the SES monitoring process for the new cabinet from the GUI You can then configure the additional disk capacity without rebooting the system Note Ensure that the enclosure is powered on before making an SES Discovery request or the devices will not appear in
146. to wait for full foreground initialization Assisted Configuration New Configuration 204 32 130 202 Controller 2 1 Welcome 2 Fault Tolerance 3 RAID Level 4 Logical Drives 5 Optimization 6 Finish Assisted configuration will create logical drives from the capacity and number of logical drives you specify How many logical drives do you want to create fl 3 How much capacity do you want to use fioo 112408 MB Selecting initialize will initialize all logical drives Do you want to initialize logical drives Yes C No lt Back Next gt Cancel Figure 4 16 Assisted Configuration Logical Drives Manual No SA67 0050 01 4 19 Running RAID Assist Optimization Tab Configure the following options Figure 4 17 for optimization 1 Choose between e write cache enabled write back or e write cache disabled write through 2 Select Stripe Size valid options are in the list 3 Cache line size not supported Assisted Configuration New Configuration 204 32 130 202 Controller 2 Fault Tolerance Raid Level Logical Drives Optimization Finish Figure 4 17 Assisted Configuration Optimization 42000 SAM Client User s Guide Configuration Finish Tab When you get to the Finish screen Figure 4 18 do the following 1 Assisted Configuration New Configuration 204 32 130 202 Controller 2 1 Welcome 2 Fault Tolerance 3 RAID Level 4
147. trl while clicking drives then dragging the selected set to a Disk Array 3 Continue to define disk arrays by clicking Add Array and then moving the available disk drives to each array A1 A2 and so on Note Remember to use the same number of devices in each array otherwise spanning cannot be utilized 4 34 SAM Client User s Guide Configuration Figure 4 29 shows the creation of four arrays each having three disk drives Manual Configuration New Configuration SS1_ Controller 0 Kn es ban ai reeset ae EL a He es a oe a a A IS ES a Be es ee Lain Jeter TT CT eS 2 ee eS Figure 4 29 Creating a Spanned Array Note In order to utilize spanning you must configure a logical drive that exceeds the capacity of one of the disk arrays you configured in step 3 4 Select the Logical Drives tab Configure one or more logical drives Refer to page 25 for information on how to configure logical drives Manual No SA67 0050 01 4 35 Spanning in SANArray Manager Client Manual Configuration New Configuratio Dama en Figure 4 30 Spanned Array 5 Continue with the configuration as described in Manual Configuration on page 4 22 436 SAM Client User s Guide Configuration Loading a Configuration from Disk Load a previously saved configuration from disk as shown in Figure 4 31 File Open Configuration Ctrl 0 Save Configuration Ctrl S Clear C
148. tstrapping Loading operating system code and other basic software from a disk or other storage device to help a computer start Cache A temporary storage area for frequently accessed or recently accessed data Cache is used to speed up data transfer to and from a disk See also Caching Cache Flush Refers to an operation where all unwritten blocks in a Write Back Cache are written to the target disk This operation is necessary before powering down the system Cache Line Size Represents the size of the data chunk that will be read or written at one time and is set in conjunction with stripe size Under RAID EzAssist the cache line size also known as Segment Size should be based on the stripe size you selected The default segment size for Mylex RAID controllers is 8K See also Stripe Size Manual No SA67 0050 01 Glossary 3 Glossary Caching Allows data to be stored in a pre designated area of a disk or RAM Caching speeds up the operation of RAID systems disk drives computers and servers or other peripheral devices See also Cache Conservative Cache An operating mode in which system drives configured with the Write Back Caching policy are treated as though they were configured for Write Through operation and the cache is flushed Consistency Check A process that verifies the integrity of redundant data A consistency check on a RAID 1 or RAID 0 1 configuration mirroring checks if the data on drive
149. tton cancels the entire configuration including what was set up under the Disk Arrays Logical Drives and SAN Mapping tabs If you want to cancel only your SANmapping changes use the Restore button Apply The Apply button applies the entire controller configuration including what was set up under the Disk Arrays Logical Drives and SAN Mapping tabs Click Apply or press the Enter key when you are ready to accept the entire controller configuration you ve specified across all Manual Configuration tabs 4 32 SAM Client User s Guide Configuration Spanning in SANArray Manager Client Spanning provides the ability to configure multiple disk arrays or parts of multiple disk arrays as one logical drive This means that space is used from the first array to the last array All of the arrays used for spanning must be identical in the number and size of the physical drives composing the arrays Enable Spanning in SAM To enable Spanning in SAM use the following procedure 1 Open Preferences by clicking Administration gt Preferences on the menu bar 2 Click the Enable Logical Drive Spanning check box to enable spanning Spanning may be enabled and disabled as desired during the various disk configuration efforts It is not necessary to leave it enabled once a spanned array has been created It is not necessary that spanning be disabled to create a non spanned array Configuring a Spanned Array 1 Within SAM select Administration
150. ture shutdown is activated These temperature settings must adhere to the following rule Undertemp Failure lt Undertemp Warning lt Overtemp Warning lt Overtemp Failure Refer to page 4 7 for more information on the Over Temperature Shutdown feature Process Status Monitoring If logical drives are currently being initialized open the Long Op Status box as shown in Figure 5 11 to monitor the initialization progress v Global Status View v Controller View v Log Information Viewer Long Op Status Figure 5 11 Select Long Op Status Long Op Status i 1x Action Logical Drive Status complete Initialize 0 In progress 17 600 EE Initialize 1 In progress 20 500 E SK Prey Heros Cancel FG Init Cancel Bia ire Close Figure 5 12 Long Op Status Box 5 18 SAM Client User s Guide Monitoring The Long OP Status box Figure 5 12 displays the progress of one or more full logical drive initializations You may cancel the initialization by clicking the available Cancel button Rebuild Status If a rebuild process is currently underway open the Long Op Status box as shown in Figure 5 11 to monitor the rebuild progress or cancel the process The Long Op Status box Figure 5 13 displays the progress of a physical drive rebuild The command rebuilds all logical drives that occupy any portion of the targeted physical drive Long Op Status 21 x Action Logical Drive Stat
151. tus View v Controller View v Log Information Viewer Long Op Status Figure 3 7 View Menu Global Status View Toggles the Global Status View window The Global Status View window opens by default when SANArray Manager Client starts Controller View Toggles the Controller View window showing channel ID target information and physical device logical drive configurations for the controller selected in the controller selection box Log Information Viewer Toggles the Log Information Viewer a window showing a log of recent system error and status event messages The Log Information Viewer opens by default when SANArray Manager Client starts Long Op Status Displays the progress percent complete of an ongoing full initialization consistency check rebuild and capacity expansion of one or more drives Administration Menu The Administration menu Figure 3 8 contains the following options 3 10 Sign On Enables use of SANArray Manager s configuration and administration functions to Administrators gamroot password Enables only monitoring functions to Users Define Server Groups Sets up server groups and individual server names or IP addresses within each group RAID Assist Mylex s built in RAID Controller configuration utility Facilitates configuration tasks using either one step automatic configuration a configuration wizard assistant or a manual advanced level con
152. types Both controllers controller so that must be of the the board types same type are the same 436 2 Dual active Number of disk Replace adjust negotiation failed channels differ or add disk channels Both controllers components so must have the that the same number of controllers have disk channels the same number of disk channels 437 2 Dual active Host ports differ Replace adjust negotiation failed Both controllers or add host ports must have the components so same number of host ports that the controllers have the same number of host ports Manual No SA67 0050 01 Overview Table A 2 SANArray Manager Events ID Severity Description Details Actions 438 2 Dual active Memory sizes Replace adjust negotiation failed differ or add memory size Both controllers components so must have the that the same control controllers have store size the same control store size 439 2 Dual active Cache memory Replace adjust negotiation failed sizes differ or add cache memory size Both controllers components so must have the that the same cache controllers have memory size the same cache memory size 440 1 Error in mirror race Logical drives Check table appear in the configuration for mirror race table accuracy run that don t existin consistency the check and configuration restore possible data consistency integrity issue 441 2 A replacement
153. u bar Disk Configuration Wizard Brings up the RAID Assist dialog box for RAID controller configuration P Scan Devices Scans for new recently added devices which are not yet identified within SANArray Manager Displays Controller Information Displays key information about the currently selected RAID Controller Sign On Enables configuration and administration functions to Administrators and monitoring functions to Users e a Settings for Events Opens a dialog box for specifying Event Editor and Alarm settings Help Contents Displays the on line help contents page E 3 14 SAM Client User s Guide Startup amp Navigation Exiting SANArray Manager Client Exit SANArray Manager Client as shown in Figure 3 13 Open Configuration Ctl O Save Configuration Ctrl S Clear Configuration Figure 3 13 Select Exit Note We recommend leaving the SANArray Manager Client running as long as there are servers you wish to monitor or configure If you do exit you will be unable to receive events from GAM Server and you will not be informed of errors or status unless you restart SANArray Manager Client Exiting GAM Server Refer to the GAM Server manual for Software Kit 5 for details on how to exit GAM Server Manual No SA67 0050 01 3 15 Setting Up Server Groups and Servers Setting Up Server Groups and Servers This section describes how to set up connections to server groups
154. ubsystem printer display CD ROM disk drive etc Disk Failure Detection A RAID controller automatically detects SCSI disk failures A monitoring process running on the controller checks among other things elapsed time on all commands issued to disks A time out causes the disk to be reset and the command to be retried If the command times out again the controller could take the disk offline Mylex DAC960 controllers also monitor SCSI bus parity errors and other potential problems Any disk with too many errors will also be taken offline See also Offline Disk Media Error Management Mylex controllers transparently manage disk media errors Disks are programmed to report errors even ECC recoverable errors If ECC RAM is installed the controller will correct ECC errors When a disk reports a media error during a read the controller reads the data from the mirror RAID 1 or 0 1 or computes the data from the other blocks RAID 3 RAID 5 and writes the data back to the disk that encountered the error When a disk reports a media error during a write the controller issues a reassign Manual No SA67 0050 01 Glossary 5 Glossary command to the disk then writes the data out to a new location on the disk Since the problem has been resolved no error is reported to the system Drive Groups Drive Packs A group of individual disk drives preferably identical that are logically tied to each other and are a
155. us complete Rebuild 0 In progress 7 011 E om REY Hey Cancel Rebuild Cancel BG Init Figure 5 13 Rebuild Status Box Click Cancel Rebuild to stop the rebuild Click Close or press the Enter key to exit the Long Op Status dialog box at any time Manual No SA67 0050 01 5 19 Process Status Monitoring Consistency Check Status If a consistency check process is currently underway open the Long Op Status box as shown in Figure 5 11 to monitor the consistency check progress or cancel the process The Long Op Status box Figure 5 14 displays the progress of a logical drive consistency check Long Op Status BE Action Logical Drive Status complete Consistency Check 0 In progress 3 861 Cancel Check Wercel BGs rit Figure 5 14 Consistency Check Status Box Click Cancel Check to stop the consistency check Click Close or press the Enter key to close the Long Op Status box at any time 5 20 SAM Client User s Guide Monitoring Expand Capacity Status If an expand array process is currently underway open the Long Op Status box as shown in Figure 5 11 to monitor the progress of this process The Long Op Status box Figure 5 15 displays the progress of a disk array capacity expansion Action Logical Drive Status complete Expand 0 Migration phase 27 089 E Prev Next Figure 5 15 Long Ops Status Box Expand Capacity WARNING Expand Capacity cannot be cancelled Cli
156. utton to cancel the action identified in the dialog box Close Click this button to close the active dialog box Apply Click this button to apply your configuration changes 3 2 SAM Client User s Guide Components of the SANArray Manager Client Opening Screens Startup amp Navigation Upon startup with defined servers SANArray Manager Client displays the opening screen consisting of the SANArray Manager window the Global Status View window and the Log Information Viewer Figure 3 1 SANArray Manager Client File View Administration Window Help APPLA Global Status View Log Information Viewer eae Sa SF SE FN E EE Local Time 2001 0417 09 22 41 2001 04 17 09 22 42 2001 04 17 09 22 57 2001 04 17 09 23 16 2001 0417 09 23 17 2001 04 17 09 23 27 et 1 chn O tot 1 ctl 1 chn O tat 1 ct 1 ctt 1 chn O tat 1 ctt 1 chn Otgt 1 System drive LUN mapping has been written to config hard disk has been placed online A hard disk has been placed online System drive LUN mapping has been written to config hard disk has been placed online A hard disk has been placed online 2001 04 17 10 21 35 2001 0417 10 21 35 2001 04 17 10 21 50 2001 04 17 10 22 10 2001 04 17 10 22 10 2001 04 17 10 22 20 For Help press F1 Figure 3 1 Opening Screen Components of the SANArray Manager Client Windows The major components of the SANArray Manager Client windows Figure 3 1 are described be
157. ve groups super drive group Maintains parity information which can be used for data recovery Level 50 Data is striped across multiple drive groups super drive group For data redundancy drives are encoded with rotated XOR redundancy Manual No SA67 0050 01 Glossary 15 Glossary Note The host operating system drivers and software utilities remain unchanged regardless of the level of RAID installed The controller makes the physical configuration and RAID level implementation RAID Migration A feature in RAID subsystems that allows for changing a RAID level to another level without powering down the system RAM Random Access Memory the built in readable and writable data storage that comes with or can be added to a computer Read Ahead Cache A caching strategy whereby the computer anticipates data and holds it in cache until requested Recovery The process of reconstructing data from a failed disk using data from other drives Redundancy The inclusion of extra components of a given type in a system beyond those the system requires to carry out its functions Replacement Table A table that contains information regarding which SCSI devices have been replaced by others through standby replacement ROM Read Only Memory built in computer memory containing data that normally can only be read not written to ROM contains the programming that allows a computer to be booted up each time you turn
158. verse effects on the connectivity between the SAM Client and all servers running GAM Server e Event Port Allows you to select and change the Event port the valid range is 0 to 65535 e Log View Size Allows you to control the number of lines events that are available in the Log Information Viewer This is the number of recent events that the user may view All events are available in the event log file if event logging is enabled e Set Defaults Returns all values to default For More Information This concludes the Startup amp Navigation chapter For additional information on SANArray Manager options and functionality refer to other chapters in this installation guide and to the context sensitive online help file available from the Help menu by pressing F1 or by right mouse clicking an item on which you require help 3 26 SAM Client User s Guide Chapter 4 Configuration Introduction Configuration activities involve the following Setting or modifying controller options to suit your application needs Modifying physical device options for data transfer or tag value Creating modifying or deleting Mylex RAID Controller configurations SANmapping Spanning Loading and saving a configuration Manual No SA67 0050 01 4 1 Setting and Modifying Controller Options Setting and Modifying Controller Options Open Controller Options as shown in Figure 4 1 Controller Options k Figure 4 1 Select C
159. vice can be a host controller enclosure processor or disk drive Double click a physical device icon to display information about a particular physical device A physical device icon representing a Fibre Channel controller may not be displayed in the stack of physical devices in the Controller View window The controller device information is available through the controller information window described on page 5 4 A physical device icon representing an enclosure processor may not be displayed in the stack of physical devices in the Controller View window The enclosure information is available through the Enclosure button in 5 6 SAM Client User s Guide Monitoring Controller View or the Enclosure Information menu item in the Administration menu r Device Inquiry Data Vendor MYLEX Product DACARMRB 1035770 Revision Bus Width 4 Syne Yes Soft Reset No ANSI Version SCSI 2 Linked No CmdQue Yes p Device State Transfer Speed 100 MB Sec BusWidth 1 Figure 5 4 Host Device Information RAID Controller Device Information Figure 5 4 Figure 5 5 displays the following about the currently selected physical device Device Information RAID Controller The vendor or source of the controller The controller s product identification The revision level of the hardware The drive channel bus width Whether the following parameters are set to Yes or No Sync Soft Reset Linked Command Queuing ANSI
160. ving the data 1 Open Debug Dump Select Administration gt Advanced Functions gt Retrieve Debug Dump Administration Sian Urn Deine Sever lroups RAID Assist Initialize Logical Drives Controller Information Enclosure Information Controller Options Intelligent BBU Scan Devices PGi Flash Utility Shutdown Settings n Enclosure Discovery Preferences Retrieve Debug Dump Figure 6 17 Select Retrieve Debug Dump 2 The Retrieve Debug Dump dialog box opens Figure 6 18 Retrieve Debug Dump 24 x m Destination File Selection FC O Browse m Retrieval Status Figure 6 18 Retrieve Debug Dump Dialog Box 6 14 SAM Client User s Guide Maintenance Processes 3 Type the name of the destination dump file RDD in the Destination File Selection box or click the Browse button to locate a file If you select Browse the Debug Dump save file name dialog box is displayed Figure 6 19 Debug Dump save file name 2 x Save in 4 SANAtray Manager Client z E c mel File name debugdumpname rdd Save as type Debug Dump save file rdd x Cancel Figure 6 19 Debug Dump Save File Dialog Box 4 Navigate to and select the debug file name 5 Click Save Once you have specified an appropriate debug file the Retrieve button becomes available in the Retrieve Debug Dump dialog box 6 Click Retrieve The Retrieval St
161. wing web site to download Wine http www rpmfind net Refer to the following web sites for further information on Wine http www winehq com http www codeweavers com Install SAM Client SANArray Manager software is shipped on an accompanying distribution CD ROM The file path is as follows where X represents the drive letter of your CD ROM drive X GAM Linux Install SAM Client on Linux where x represents the current version number rpm ivh sam client 5 00 xx xxxx i386 rpm SAM will be installed under opt sam To run SAM Client see Starting SANArray Manager on page 3 1 Manual No SA67 0050 01 2 5 Installing SANArray Manager Client with Linux To Uninstall SAM Client Software 1 Locate the installed SAM Client software rpm qa grep sam 2 Uninstall SAM Client software rpm e sam 5 00 xx xxxx 2 6 SAM Client User s Guide Chapter 3 Startup amp Navigation Starting SANArray Manager Starting the SANArray Manager requires both the Server and Client components It is not required that the Server and Client components run on the same computer however you must install and start GAM Server before you attempt to run the SANArray Manager Client Server Component Installation and startup of the Global Array Manager Server component is covered in the Global Array Manager Server Software Installation Guide and User Manual The software for GAM Server is provided on the installation CD ROM
162. y caused because is available to the of transient user again errors in physical disks 162 4 A standby rebuild A physical disk None has started ona logical drive failed anda spare device was available A 18 SAM Client User s Guide Table A 2 SANArray Manager Events Event Information ID Severity Description Details Actions 176 4 Logical drive User may have None background started initialization started background initialization Firmware may have automatically started background initialization 177 4 Logical drive User may have None background stopped initialization background stopped initialization Firmware may have automatically stopped background initialization 178 4 Logical drive Background None background initialization initialization paused paused due to higher priority operation 179 4 Logical drive Background None background initialization initialization restarted after restarted being paused 180 2 Logical drive Background None background initialization initialization failed failed 181 4 Logical drive Background None background initialization initialization completed completed successfully Manual No SA67 0050 01 A 19 Overview Table A 2 SANArray Manager Events ID Severity Description Details Actions 182 2 Low battery charge Controller was Run consistency level Logical drive powered off for check to verify

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