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1. FIGURE 1 5 Mapping Partitions to LUNs Under an ID 1 6 Sun StorEdge 3000 Family RAID Firmware 3 25 User s Guide June 2003 1 3 RAID Levels A RAID array has several advantages over non RAID disk arrays m Provides disk spanning by weaving all connected drives into one single volume m Increases disk access speed by breaking data into several blocks when reading and writing to several drives in parallel With RAID storage speed increases as more drives are added a Provides fault tolerance by mirroring or parity operation There are several ways to implement a RAID array using a combination of mirroring striping duplexing and parity technologies These various techniques are referred to as RAID levels Each level offers a mix of performance reliability and cost Each level uses a distinct algorithm to implement fault tolerance There are several RAID level choices RAID 0 1 3 5 1 0 3 0 30 and 5 0 50 RAID levels 1 3 and 5 are the most commonly used Note The NRAID option that appears in some firmware menus is no longer used and is not recommended Note Drives on separate channels can be included in a logical drive and logical drives of various RAID levels can be used to configure a logical volume The following table provides a brief overview of the RAID levels TABLE 1 1 RAID Level Overview Number of Drives RAID Level Description
2. 6 Select Head Ranges and press Return Chapter 8 Viewing and Editing Configuration Parameters 8 33 7 Select the value you want and press Return 8 Select Cylinder Ranges and press Return 9 Select the value you want and press Return Main Menu gt Quick installation l view view Maximum Queued 1 70 Count 256 i LUNs per Host SCSI ID 8 Max Number_of Concurrent Host LUN Connection Def 4 Number of Tags Reserved for each Host LUN Connection Def 32 Peripheral Device T Parameters Control inders ae 2 32768 Cylinders lt 65536 Cylinders 8 13 Redundant Controller Parameters Menu Reserved The Redundant Controller Parameters menu options are m Secondary Controller RS 232C m Remote Redundant Controller Do not use these menu options They are reserved for specific troubleshooting procedures and should only be used by qualified technicians 1 To display the Redundant Controller Parameters menu select the view and edit Configuration parameters command from the Main Menu and press Return lt Main Menu gt Quick installation view and edit Logical drives view and edit logical Volumes view and edit Host luns view and edit scsi Drives view and edit Scsi channels Configuration parameters view and edit Peripheral devices system Functions view system Information view and edit Event logs 2 Select Redundant Controller Parameters
3. One member drive fails in a logical drive Any local spare drive assigned to logical drive Rebuild using the local spare drive Any global spare drive assigned to logical drive Rebuild using the global spare drive Periodic Auto Detect Failure Drive Swap Check Time enabled Waiting for spare drive to be added or manual rebuild Has the failed drive been swapped Rebuild using the swapped drive Keep detecting if drive has been swapped or spare drive has been added FIGURE 8 1 Automatic Rebuild Chapter 8 Viewing and Editing Configuration Parameters 8 9 8 5 2 Manual Rebuild When a user applies forced manual rebuild the controller will first examine whether there is any local spare assigned to the logical drive If yes it will automatically start to rebuild If there is no local spare available the controller will search for a global spare If there is a global spare the logical drive rebuild will begin See FIGURE 8 2 If neither local spare nor global spare is available the controller will examine the channel and ID of the failed drive After the failed drive has been replaced by a healthy one the logical drive rebuild begins on the new drive If there is no drive available for rebuilding the controller will not attempt to rebuild until the user applies another forced manual rebuild 8 10 Sun StorEdge 3000 Family RAID Fi
4. Sree Si eed LGD Seats Verder ood Prose o Ty _ ew o COE Copy and Replace Drive NE NEW ORV ra eo SY Sa ja oa amaa Source Drive NE Channel 1 ID 0 Destination Drive NE Channel 1 ID 3 NE ee UO lt lt lt eucccce lt A Ce eej oonan SSCS 4 Select one of the member drives as the source drive status indicated as ON LINE by pressing Return A table of available SCSI drives will prompt Select a new drive to copy the capacity of the source drive The channel number and ID number of both the Source Drive and the Destination Drive will be indicated in the confirming box o o EE E View scsi drives Delete logical drive Partition logical drive logical drive Name logical drive Assignments xpand logical drive lt lt uccccd lt M Scsi drives a reGenerate parit c py and replace drive 5 Select Yes to confirm and proceed A notification message is displayed 21A1 LG 0 Logical Drive NOTICE CHL 1 ID 3 Starting Clone 6 Press Esc to view the progress 3 26 Sun StorEdge 3000 Family RAID Firmware 3 25 User s Guide June 2003 CRAU CAERA SAn Drive Copying 40 Completed a 1 LO MAMMI 1 T 1 1 1 7 Completion of the Copy and Replac
5. Assigning Logical Drive Name Naming a logical drive can help to identify different logical drives If one or more logical drives have been deleted the drive indexing is changed after system reboot The second logical drive might become the first on the list after system reboot A RI SE Ca cee N e a E T A View scsi drives Delete logical drive Partition logical drive ogical drive Name s egsssyshel E a Current Logical Drive Name r New Logical Drive Name c To enter a name for the logical drive perform the following steps Select view and edit Logical drives from the Main Menu and press Return Select the logical drive you want to assign a name and press Return Select logical drive name and press Return again The current logical drive name will be displayed on the screen You may now enter the new logical drive name in this field Type the logical drive name and press Return to save the new name Chapter 3 Viewing and Editing Logical Drives 3 17 3 10 Rebuilding a Logical Drive If no spare drive is ready for logical drive rebuild a failed drive should be replaced immediately by a new drive and the rebuild process should be initiated manually View scsi drives elete logical drive Partition logical drive logical drive Name Rebuild logical drive lt lt uccecc lt Ho c To rebuild a logical drive perform the following steps Select view
6. Appendix C Event Messages C 7 C 5 4 SES Devices 3f21 SES C_ I_ Power Supply _ lt Vendor descriptor strings Device Not Supported gt 3f21 SES C_ I_ Power Supply _ lt Vendor descriptor strings Device Not Installed gt 3f21 SES C_ I_ Power Supply _ lt Vendor descriptor strings Device Unknown Status gt 3f21 SES C_ I_ Power Supply _ lt Vendor descriptor strings Device Not Available gt 3 22 SES C_ I_ Cooling element _ lt Vendor descriptor strings Device Not Supported gt 3 22 SES C_ I_ Cooling element _ lt Vendor descriptor strings Device Not installed gt 3 22 SES C_ I_ Cooling element _ lt Vendor descriptor strings Device Unknown Status gt 3 22 SES C_ I_ Cooling element _ lt Vendor descriptor strings Device Not Available gt 3 23 SES C_ I_ Temperature Sensor _ lt Vendor descriptor strings Device Not Supported gt 3 23 SES C_ I_ Temperature Sensor _ lt Vendor descriptor strings Device Not installed gt 3 23 SES C_ I_ Temperature Sensor _ lt Vendor descriptor strings Device Unknown Status gt 3 23 SES C_ I_ Temperature Sensor _ lt Vendor descriptor strings Device Not Available gt 3f24 SES C_ I_ UPS _ lt Vendor descriptor strings Device Not Supported gt 3 24 SES C_ I_ UPS _ lt Vendor descriptor strings Device Not installed gt 3 24 SES C_ I_ UPS _ lt Vendor descriptor strings Device Unkn
7. Select scsi drive Utilities and press Return Select scsi Drive Low level Format and confirm by selecting Yes Note Do not switch the controller or SCSI disk drive power off during the SCSI Drive Low level Format If any power failure occurs during a drive low level format the formatting must be performed again when power resumes Chapter 6 Viewing and Editing SCSI Drives 6 27 6 12 2 SCSI Drive Read Write Test Select view and edit scsi Drives on the Main Menu Select a new or used drive on which the utility is to be performed and press Return Select scsi drive Utilities and press Return Select Read Write Test and press Return Enable or disable the following options and press Return after each change m Auto Reassign Bad Block m Abort When Error Occurs a Drive Test for Read Only Read and Write When configuration is complete select Execute Drive Testing and press Return to continue Quie Slot On TO SizeC Sreed LGDAV Status Vendor and Product 1 vies a 2 ol 9999 one of ON LINE tem ooRs 3a5600 mi 2 2 1 9999 aom ol on Line Ten oDRs 345600 eee ee DDRS 3456 D Occurrence IBM DDRS 3456aD or Drive Test for Read Only Execute Drive Testing DDRS 3456aD rst 2 l aes of onnelaan oons sesceo The Read Write test progress will be indicated by a status bar Note At any time you can press Esc select Read
8. Channel 4 ID 44 primary Channel 5 ID 46 secondary Channel 3 ID 1 secondary TABLE B 4 SCSI Drive Parameters View and Edit SCSI Drives User Defined Parameter FC Default Setting SCSI Default Settings Range of Values FC Drive ID Switch Settings 0 0 7 B 2 Sun StorEdge 3000 Family RAID Firmware 3 25 User s Guide June 2003 TABLE B 5 SCSI Channel Parameters View and Edit SCSI Channels User Defined Parameter FC Default Setting SCSI Default Settings Range of Values Host Channel Settings 0 1 4 5 Host Channels 1 3 Host Channels Vary by product Drive Channel Settings 2 and 3 0 and 2 Vary by product Sync Transfer Clock 80 MHz 80 MHz Do Not Change this parameter 2 5 MHz to 80 MHz and Async Wide Transfer Enabled Enabled Do Not Change this parameter Enabled Disabled Parity Check Enabled Enabled Do Not Change this parameter Disabled Enabled B 3 Default Configuration Parameters The most important parameter to review are the Caching Parameters which impact the block size and optimization performance Many parameters are optional or unused depending on the applicable product The parameters in the following tables can be set using the View and Edit Configuration Parameters menu Communication Parameters on page B 4 Caching Parameters on page B 5 Peripheral Device Type Parameters on page B 6 Host Side and Drive Side Parameters on page B 6 Other
9. O Tneout seconds 10 seconds Maximum Tag Count 32 15 seconds Periodic Drive Check Time 10 seconds 20 seconds Periodic SAF TE and SES Device Check Time 5 seco Periodic Auto Detect Failure Drive Swa Drive Predictable Failure Mode SMART Set Disk Access Delay Time Fibre Channel Dual Loop Enab Yes No Drive side Parameters Dis Array Parameters Redundant Controller Parameters Controller Parameters SS seconds 60 seconds 65 seconds 70 seconds 75 seconds Select view and edit Configuration parameters on the Main Menu Select Drive side SCSI Parameters and then press Return The Drive side SCSI parameters menu is displayed Select Disk Access Delay Time and then press Return A list of selections is displayed Select the desired delay time and press Return Select Yes to confirm the setting SCSI I O Timeout The SCSI I O Timeout is the time interval for the controller to wait for a drive to respond If the controller attempts to read data from or write data to a drive but the drive does not respond within the SCSI I O timeout value the drive will be considered a failed drive The default setting for SCSI I O Timeout is 15 seconds Do not change this setting Setting the timeout to a lower value will cause the controller to judge a drive as failed while a drive is still retrying or while a drive is unable to arbitrate the SCSI bus Setting the timeout to a gre
10. and press Return The Redundant Controller Parameters menu options are displayed 8 34 Sun StorEdge 3000 Family RAID Firmware 3 25 User s Guide June 2003 8 14 Peripheral Device Type Parameters The functions included within this section are provided for arrays without a preset logical RAID unit connected to a host Subsequently the majority of these functions do not apply to the Sun StorEdge product line Caution Modification of these settings will likely cause problems with your storage array All parameters are typically preset m ll Main Menu Quick installation view and edit Logical drivi view and edit logical Volu view and edit Host luns view and edit scsi Drives view and edit Scsi channelj Maximum Queued I O Count 256 LUNs per Host SCSI ID 8 Max Number of Concurrent Host LUN Connection Def 4 Number of Tags Reserved for each Host LUN Connection Def 32 Peripheral Device Type Parameters Host Cylinder Head Sector Mapping Configuration Fibre Connection Option Loop only vf Caching Parameters v ESZRE j Drive side SCSI Parameters f Disk Array Parameters Redundant Controller Parameters f Controller Parameters FIGURE 8 5 Peripheral Device Type Parameters Peripheral Device Qualifier The default setting for this parameter is Connected Device Supports Removable Media The default setting for this parameter is Disabled L
11. threshold Enabled Define Peripheral Device Active Low Low High Signal Low User Defined Parameter FC Default Setting SCSI Default Settings Range of Values Controller Peripheral Device Configuration gt Voltage and Temperature Parameters Upper Trigger Threshold for Default 3 6V Default 3 6V Disable 3 4V 3 9V 3 3V Event Lower Trigger Threshold for Default 2 9V Default 2 9V Disable 2 6V 3 2V 3 3V Event Upper Trigger Threshold for Default 5 5V Default 5 5V Disable 5 2V 6 0V 5V Event Lower Trigger Threshold for Default 4 5V Default 4 5V Disable 4 0V 4 8V 5V Event Upper Trigger Threshold for Default 13 2V Default 13 2V Disable 12 5V 14 4V 12V Event Lower Trigger Threshold for Default 10 8V Default 10 8V Disable 9 6V 11 5V 12V Event Upper Trigger Threshold for 95 C 95 C Disable 50 100C CPU Temperature Events Appendix B Parameter Summary Tables B 9 TABLE B 11 Peripheral Device Type Parameters View and Edit Peripheral Devices Continued Lower Trigger Threshold for Default 0 C Default 0 C Disable 0 20C CPU Temperature Events Upper Trigger Threshold for 85 C 85 C Disable 50 100C Board Temperature Events Lower Trigger Threshold for Default 0 C Default 0 C Disable 0 20C Board Temperature Events B 5 Default System Functions The following system function parameters are available TABLE B 12 System Parameters System
12. 0 and press Return 4 Now select Clear drive status and press Return The empty drive entry will now disappear from the drive information list 5 Then delete the empty drive entry refer to Adding or Deleting Drive Entries on page 6 9 6 10 Sun StorEdge 3000 Family RAID Firmware 3 25 User s Guide June 2003 Note You will not be able to remove an empty drive entry if it has been assigned a slot number Delete the slot number before removing the empty drive entry 6 10 Identifying a Failed Drive for Replacement If there is a failed drive in a RAID 5 logical drive replace the failed drive with a new drive to keep the logical drive working To identify a failed drive refer to Identifying a Failed Drive for Replacement on page 6 11 Caution If when trying to remove a failed drive you mistakenly remove the wrong drive you will no longer be able to access the logical drive because you have incorrectly failed another drive and caused a critical failure of the RAID set Note The following procedure works only if there is no I O activity To find a failed drive identify a single drive or test all drive activity LEDs you can flash the LEDs of any or all drives in an array Since a defective drive will not light up this provides a good way for you to visually identify a failed drive before replacing it On the Main Menu select view and edit scsi Drives and press Retur
13. 65536 Cylinders The controller then automatically adjusts the head sector count so the operating environment can read the correct drive capacity 8 32 Sun StorEdge 3000 Family RAID Firmware 3 25 User s Guide June 2003 Note To avoid difficulties with Solaris operating environment configurations use the values in the following table TABLE 8 3 Cylinder Head Sector Mapping for the Solaris Operating Environment Capacity Cylinder Head Sector lt 64 GB depends on capacity 64 32 64 128 GB depends on capacity 64 64 128 256 GB depends on capacity 127 64 256 512 GB depends on capacity 127 127 512 GB 1 TB lt 65536 Cylinders 255 127 Note Currently Solaris does not support drive capacity larger than 1 terabyte To configure Sector Ranges Head Ranges and Cylinder Ranges perform the following steps m Select view and edit Configuration parameters from the Main Menu and press Return 2 Select Host Side SCSI Parameters and press Return Q Select Host Cylinder Head Sector Mapping Configuration and press Return A Select Sector Ranges and press Return 5 Select the value you want and press Return lt Main Menu gt Quick installation view view Maximum Queued I O Count 256 view LUNs per Host SCSI ID 8 Max Number_of Concurrent Host LUN Connection Def 4 Number of Tags Reserved for each Host LUN Connection Def 32 Peripheral Device T Host inder Head
14. 8 35 setting 9 5 viewing status 9 2 Peripheral Device Qualifier parameter 8 35 perpetual clone clone failing drive 6 18 physical array definition Glossary 5 physical drive capacity setting 3 8 physical drives parameters 6 2 prtimary secondary controller ID 7 8 Q quick installation 2 5 warning 2 5 R RAID advantages 1 7 controller 8 26 expansion with logical volume 4 4 glossary Glossary 1 planning considerations 1 20 RAID 3 0 4 4 RAID 5 0 4 4 RAID 5 1 4 4 RAID 5 5 4 5 RAID 1 0 4 4 RAID Levels 1 7 RAID levels controller optimization mode 1 21 described 1 8 explained Glossary 6 planning 1 21 RAID 0 1 10 RAID 1 1 11 RAID 1 0 1 12 RAID 3 1 13 RAID 5 1 14 range of disks logical drives supported 1 7 selected 3 7 RAID Terminology Overview 1 2 RAID1 0 concurrent rebuild in 8 11 random I O optimization maximum size 8 3 read ahead policy definition Glossary 6 read policy definition Glossary 6 Read Write Test 6 28 rebuild automatic 8 7 concurrent in RAID 1 0 8 11 definition Glossary 6 manual 8 10 Rebuild logical drive command 3 18 Rebuild Priority command 8 26 rebuilding 8 26 logical drive 3 18 Rebuilding Logical Drives 8 7 redundant controller explained 8 7 Regenerate Parity command 3 20 3 21 remote file 2 3 replace after clone clone failing drive 6 16 Replace After Clone command 6 16 reset controller controller reset 3 11 RS 232 Index
15. BAD to BAT charging to BAT fully charged For example a partially charged battery might show BAT Write Back Versus Write Through Cache Options Unfinished writes are cached in memory in write back mode If power to the array is discontinued data stored in the cache memory is not lost Battery modules can support cache memory for several days Write cache is not automatically disabled when the battery is offline due to battery failure or a disconnected battery You can enable or disable the write back cache capabilities of the RAID controller To ensure data integrity you can disable the Write Back cache option and switch to the Write Through cache option by selecting view and edit Configuration parameters and then selecting Caching Parameters 1 7 RAID Planning Considerations Here are some questions that can help you plan your RAID array a How many physical drives do you have You have from 5 drives to 12 drives in your array a How many drives would you like to appear to the host computer 1 20 Sun StorEdge 3000 Family RAID Firmware 3 25 User s Guide June 2003 Determine what capacity will be included in a logical configuration of drives A logical configuration of drives is displayed to the host as a single physical drive For the default logical drive configuration see Default Logical Drives and RAID Levels on page 3 2 a What kind of host applications will you be using
16. Creating Logical Drive s on page 3 4 Changing a Logical Drive Controller Assignment on page 3 10 Viewing the Logical Drive Status Table on page 3 3 Partitioning a Logical Drive on page 3 11 Deleting a Logical Drive on page 3 15 Deleting a Partition of a Logical Drive on page 3 16 Assigning Logical Drive Name on page 3 17 Rebuilding a Logical Drive on page 3 18 Performing a Logical Drive Parity Check on page 3 19 Overwriting Inconsistent Parity on page 3 20 Adding a SCSI Drive to a Logical Drive on page 3 21 Copying and Replacing Drives with Drives of Larger Capacity on page 3 24 Expanding a Logical Drive on page 3 27 Sol Introducing the Logical Drive Commands On the Main Menu the view and edit Logical drives command is used to stripe physical SCSI drives into a logical drive 3 1 lt Main Menu gt Quick installation iew and edit Logical drives view and edit logical Volumes view and edit Host luns view and edit scsi Drives view and edit Scsi channels view and edit Configuration parameters view and edit Peripheral devices system Functions view system Information view and edit Event logs For additional commands highlight the first line or the desired logical drive LG and press Return The following menu is displayed Ee site sate e e S1 152D800AC NA GOOD S3 0 Delete logical drive Partition logical drive logical
17. Disabled Enabled Do Not Change this parameter Enabled Disabled Do Not Change this parameter Disabled Enabled User Defined Parameter FC Default Setting SCSI Default Settings Range of Values Disk Access Delay Time 15 seconds 15 seconds Do Not Change this parameter None to 75 seconds SCSI I O Timeout 30 seconds 7 seconds 500 milliseconds to 30 seconds Maximum Tag Count 32 32 1 256 or Disabled Periodic Drive Check Disabled Disabled 1 2 to 30 seconds Disabled Time Periodic SAF TE SES 30 seconds 30 seconds Disabled to 60 seconds Check Time Periodic Auto Detect Disabled Disabled 5 to 60 seconds Failure Drive Swap Disabled Check Time Drive Predictable Failure Disabled Disabled Do Not Change this Mode SMART parameter Detect Only Detect and Perpetual Clone Detect and Clone Replace Disabled Auto Assign Global Spare Disabled Disabled Enabled Drive Disabled Appendix B Parameter Summary Tables B 7 TABLE B 10 Other Configuration Parameters User Defined Parameter FC Default Setting SCSI Default Settings Range of Values Disk Array Parameters Rebuild Priority Low Low Normal Improved High Low Verification on Writes Disabled Disabled On LD Initialization Writes Disabled On LD Rebuild Writes Disabled On Normal Drive Writes Disabled Redundant Controller Parameters Secondary Controller RS Disabled Disabled Enabled 232 Disabled R
18. Operation and Service Manual for your array JBODs are arrays without controllers that are connected directly to host servers 7 4 Creating Additional Host IDs All RAID arrays are preconfigured when they arrive from the factory Default host channel IDs are m Channel 1 ID 0 primary controller a Channel 3 ID 1 secondary controller Each host channel might have two editable ID numbers m Primary controller ID m Secondary controller ID Each ID number must be a unique number within the host channel You can m Edit each host ID number to change the SCSI target number of each controller host channel that is seen by the host m Add additional host ID numbers by adding a second host ID to channels 1 and 3 and additional host IDs if you make Channel 2 into a host channel 7 8 Sun StorEdge 3000 Family RAID Firmware 3 25 User s Guide June 2003 Note To map 128 partitions into 128 LUNs you must add additional host IDs A minimum of four host IDs are required a maximum of six host IDs are possible For details on mapping 128 LUNs refer to Mapping Logical Drive Partitions to Host LUNs on page 5 1 To select a unique ID number for a host channel perform the following steps 1 Select view and edit Scsi channels Press Return 2 Highlight the host channel on which you want to edit the Primary Secondary ID and press Return Press Return to access the list of IDs and use the arrow keys to select an
19. User adjustable up to 256 a ser adjustable TABLE A 3 Caching Operation Feature Write Back and Write Through Cache Supported Memory Type Description Supported SDRAM memory for enhanced performance Fast Page Memory with Parity for enhanced data security Appendix A Firmware Specifications A 3 TABLE A 3 Scatter Gather I O Sorting Variable Stripe Size Caching Operation Supported Supported Optimized I O sorting for enhanced performance RAID 5 Optimization for random I O 32k optimization for sequential I O 128k user selectable RAID 3 Optimization for random I O 4k optimization for sequential I O 16k user selectable TABLE A 4 RAID Expansion Feature Description On Line RAID Expansion Supported RAID Expansion Add Drive RAID Expansion Copy and Replace Drives Supported Multiple drives can be added concurrently Supported Replace members with drives of larger capacity TABLE A 5 Redundant Controller Feature Description Active Active Redundant Supported Controller Synchronized Cache for Both Supported Controllers Write back Cache Enabled in Redundant Controller Mode Hot Swappable Controller No Single Point of Failure Dynamic Cache Memory Allocation Cache Battery Backup Load Sharing Yes with synchronized cache connection between controllers Supported Supported Yes Cache memory is dynamically allocated
20. _ _C 3 23 Peripheral Device ALERT Board1 Temperature lt high low threshold gt Temperature Detected _ _C 3f22 Peripheral Device ALERT Controller FAN _ Not Present or Failure Detected 3f22 Peripheral Device ALERT Controller FAN _ lt high low threshold gt Speed Detected _RPM 3f21 Peripheral Device ALERT 3 3V lt upper lower threshold gt Voltage Detected _ 3f21 Peripheral Device ALERT 5V lt upper lower threshold gt Voltage Detected O 3f21 Peripheral Device ALERT 12V lt upper lower threshold gt Voltage Detected _ C 6 Sun StorEdge 3000 Family RAID Firmware 3 25 User s Guide June 2003 C 5 3 I2C Device 3 23 Peripheral Device ALERT 323 Peripheral Device ALERT 3 23 Peripheral Device ALERT F C 3 22 Peripheral Device ALERT 3f22 Peripheral Device ALERT 3 22 Peripheral Device ALERT RPM 3f21 Peripheral Device ALERT 3f21 Peripheral Device ALERT 3f21 Peripheral Device ALERT Detected _ 324 Peripheral Device ALERT 3 24 Peripheral Device ALERT Temperature Sensor _ Failure Detected Temperature Sensor _ Not Present lt high low threshold gt Temperature _ Detected FAN _ Failure Detected FAN _ Not Present lt high low threshold gt FAN _ Speed Detected _ Power Supply _ Failure Detected Power Supply _ Not Present lt high low threshold gt Power Supply _ Voltage UPS _ AC Power Failure Detected UPS _ Battery Failure Detected
21. called protocol data units PDUs to different parts of a network SNMP compliant devices called agents store data about themselves in Management Information Bases MIBs and return this data to the SNMP requesters Worldwide name A number used to identify array logical drives in both the array software and in systems using the Solaris operating environment Sun StorEdge 3000 Family RAID Firmware 3 25 User s Guide June 2003 Terminology active active controllers automatic rebuild background rate caching channel fabric fabric switch failover fault tolerance A pair of components such as storage controllers in a failure tolerant RAID array that share a task or set of tasks when both are functioning normally When one component of the pair fails the other takes the entire load Dual active controllers also called dual active controllers are connected to the same set of devices and provide a combination of higher I O performance and greater failure tolerance than a single controller A process where data is automatically reconstructed after a drive failure and written to a standby spare drive An automatic rebuild will also occur when a new drive is installed manually in place of a failed drive If the rebuild process is interrupted by a reset use the Rebuild command on the Array Administration menu to restart the rebuilding process The background rate is the percentage of available array controller CPU ti
22. none euo S S S S S S o ooy O Nowe new oevp lt lt ucccee lt Mo 4 Press Esc to proceed A confirmation prompt is displayed PR EE a E POreDRTSAco NATRATOS 000 Rr ol o oO Not ification 2189 LG Logical Drive NOTICE Starting Add SCSI Drive Operation lt lt uccccc lt Mo 5 Press Esc again to cancel the notification prompt A status bar indicates the percentage of progress Chapter 3 Viewing and Editing Logical Drives 3 23 I 11 Completed_ lt lt cuccccc lt Mo A notification message informs you when the process is complete Add SCSI Drive to Logical Drive 0 Complete The capacity of the added drive is displayed as an unused partition Main Menu gt lt Quick installation LUN LV LD DRV Partition Size MB view and edit Logical drives a orv BALD view and edit logical Volumes k ae 9999 RAIDS SoS e a a m The added capacity is included in the logical drive automatically meaning that you do not have to perform Expand logical drive later However if the logical drive has already been mapped with a host LUN you have to map the added capacity to another host ID LUN to make use of it In the previous view and edit Host luns example the original capacity is 9999 MB its host LUN mapping remains unchanged and the added capacity is displayed as a second partition 3 14 Copying and Replacing Drives with Drives of Larger Capacity You can ex
23. on page 1 19 Chapter 9 Viewing and Editing Peripheral Devices 9 5 9 3 2 Enable UPS Status This function is used to enable the Uninterruptible Power Supply UPS status if a UPS unit is installed for power redundancy and backup The default value for this function is Disabled 1 Select the UPS Status option and press Return lt Main Menu gt FIGURE 9 6 UPS Status A confirmation prompt will be displayed 2 Select Yes and press Return to confirm 9 6 Sun StorEdge 3000 Family RAID Firmware 3 25 User s Guide June 2003 Setting the UPS Power Fail Signal The UPS Power Fail Signal function is to prioritize the alert notification level if power to your UPS device should fail for any reason The default High priority should not be changed 1 On the Main Menu select view and edit Peripheral devices 2 Select the Define Peripheral Device Active Signal command lt Main Menu gt Quick installation view and edit Logical drives view and edit logical Volumes view and edit Host luns view and edit scsi Drives view and edit Scsi channels view and edit Configuration parameters edit UPS Power Fail Signal Active High vl Set Peripheral Device Entry Define Peripheral Devic Adjust LCD Contrast Controller Peripheral Device Configuratio Set UPS Power Fail Signal Active to Low No FIGURE 9 7 UPS Power Fail Signal 3 If you want to ch
24. te drive Entr ry The drive simulates a predictable drive error Chapter 6 Viewing and Editing SCSI Drives 6 23 6 11 6 6 11 7 d Press Return The next time the controller performs the periodic drive check the controller detects the error simulated by the drive and displays an error message 1142 SMART CH ID Predictable Failure Detected TEST Note The TEST component of the message indicates that no predictable failure was actually detected and no action is necessary Detect Only Select Drive side SCSI Parameters from the View and Edit Configuration Parameters menu Select Drive Predictable Failure Mode SMART from the Drive side SCSI Parameters menu Select Detect Only from the Drive Predictable Failure Mode SMART menu SCSI Motor Spin Up Disabled SCSI Reset st Power Up Disabled Disk socess Delay Time 68 seconds ast yn Tes ingout 10 seconds xinym eriodic ive ve Cheah Periodic TE and SE Bey Perio ic TAR etect fa 7 ctab i 2 seconds evice ing 9 seconda ure Derive Seep amp heck Tine isabled Whenever a drive predicts symptoms of predictable drive failure the controller writes an error message to the event log Detect and Perpetual Clone Select Drive side SCSI Parameters from the View and Edit Configuration Parameters menu Select Drive Predict
25. 1 11 RAID 5 Configuration RAID 5 offers increased data transfer rates when data is accessed randomly or in large chunks and reduced data access time during simultaneous I O operations Advanced RAID Levels The following advanced RAID levels require the use of the array s built in volume manager These combination RAID levels provide the protection benefits of RAID 1 3 or 5 with the performance of RAID 1 To use advanced RAID first create two or more RAID 1 3 or 5 arrays and then join them The following table provides a description of the advanced RAID levels TABLE 1 3 Advanced RAID Levels RAID Level Description RAID 3 0 30 RAID 3 logical drives that have been joined together using the array s built in volume manager RAID 5 0 50 RAID 5 logical drives that have been joined together using the array s volume manager Chapter 1 Basic RAID Concepts and Planning 1 15 1 4 1 4 1 Local and Global Spare Drives The external RAID controllers provide both local spare drive and global spare drive functions The local spare drive is used only for one specified drive the global spare drive can be used for any logical drive on the array The local spare drive always has higher priority than the global spare drive Therefore if a drive fails and both types of spares are available at the same or greater size to replace the failed drive the local spare is used If there is a failed drive in the RAID 5 logical dri
26. 3 a RAID expansion with logical volume The Logical Volume can also be expanded using the RAID expansion function The concept of expanding a logical volume is similar to that of expanding a logical drive To perform RAID expansion on a logical drive replace each member physical drive with a drive of larger capacity or add a new drive then perform logical drive expansion to utilize the newly added capacity To perform RAID expansion on a logical volume expand each member logical drive then perform RAID expansion on the logical volume m Is there anything changed after using logical volume Without a logical volume Logical drives can be assigned to the primary controller or to the secondary controller The host I O directed to a logical drive is served by the controller to which this logical drive is assigned If a controller fails the host I O originally assigned to the failed controller is taken over by the existing controller When the controller fails back failed controller being replaced by a new one logical drives are returned to the replacement controller in the original configuration With a logical volume Logical volumes can also be assigned to different controllers The only difference is that the logical volumes are considered as the base units for shifting the control during a controller failure a A logical volume with logical drives of different levels Multilevel RAID arrays A multilevel RAID with logical volume
27. 7 8 deleting 7 10 Host Cylinder Head Sector Mapping Configuration command 8 33 host IDs adding 7 8 host LUN connection number of tags reserved 8 30 example mappings 5 6 mapping deleting 5 8 host LUN connections 8 29 host side parameters 8 28 hot spare definition Glossary 4 hot swappable definition Glossary 4 Index 3 l I O maximum queued count 8 31 random or sequential optimization 8 5 SCSI timeout 8 21 ID SCSI deleting 7 10 identifying drives 1 16 6 11 8 12 Identifying SCSI drive command 6 11 idle drive failure detection 8 25 INCOMPLETE status 3 4 initial screen main menu 2 5 initialization definition Glossary 4 INITING status 3 3 INVALID status 3 3 J JBOD explained 1 10 L LCD title display controller name not applicable 8 15 limitations expanding 3 21 logical volume 4 3 redundant config 1 19 local spare assignment 3 8 local spare drive 1 16 definition 1 3 local spare drives deleting 6 7 explained 1 17 logical drive 128 LUN limit 3 2 adding a SCSI drive 3 21 assign local spare 3 8 assigning name 3 17 change assignment 3 10 commands 3 1 logical drive Assignments 3 10 view and edit logical drives 3 3 3 15 6 20 copying and replacing 3 24 creating 3 2 3 4 3 6 defaults 3 2 definition Glossary 5 deleting 3 15 drive allocation 1 4 expanding 3 27 explained 1 3 ID 3 3 LG number 3 3 maximum number of disks per logical drive 8 4 maximum physi
28. Chapter 3 Viewing and Editing Logical Drives 3 15 3 8 Deleting a Partition of a Logical Drive RAID Size MB Partition Offset MB Size MB NAME Partition Size MB lt cuccecc lt Bo 15999 To delete a partition perform the following steps 1 Select view and edit Logical drives from the Main Menu and press Return 2 Select the logical drive that has a partition you want to delete and press Return 3 Select Partition logical drive Partitions of the logical drive are displayed in tabulated form 4 Select the partition you want to delete and press Return Return 0 on the partition size to delete this partition Logical Drive 1000 MB Logical Drive 1000 MB eens ee E Partition 0 100 MB C Parton 0 100 MB Pees sales it Mere sis T A Partition 1 200 MB Partition 2 300 MB Delete Partition 1 300 MB Partition 1 y Partition 2 600 MB 400 200 FIGURE 3 3 Example of Deleted Partitions 3 16 Sun StorEdge 3000 Family RAID Firmware 3 25 User s Guide June 2003 As illustrated in FIGURE 3 3 the capacity of the deleted partition 1 200 MB is added into the last partition now Partition 2 which combines 400 MB and 200 MB for a total of 600 MB Caution As long as a partition has been changed it is necessary to reconfigure all host LUN mappings All the host LUN mappings will be removed with any partition change
29. Configuration Parameters on page B 8 Appendix B Parameter Summary Tables B 3 TABLE B 6 Communication Parameters User Defined Parameter FC Default Setting SCSI Default Settings Range of Values Communication Parameters gt RS 232 Port Configuration Baud Rate 38400 38400 9600 19200 4800 2400 38400 Data Routing Direct to Port Direct to Port Point to Point PPP Direct to Port Terminal Emulation Enabled Enabled Disabled Enabled Communication Parameters gt PPP Configuration Access Name Not Set Not Set Type an access name Not Set Access Password Not Set Not Set Type an access password Not Set Communication Parameters gt Modem Operation gt Modem Setup Configure Modem Port Not configured Not configured Type a port Communication Parameters gt Modem Operation gt Modem Setup gt Dial out Function Dial out Modem Not set Not Set Type a command command Auto Dial out on Disabled Disabled Enabled Initialization Disabled Dial out Timeout None None Type the number of Seconds seconds Dial out Retry Count 2 2 Type a number Dial out Retry Interval 5 minutes 5 minutes Type a number Minutes Dial out Event Disabled Disabled Critical Events only Condition Critical Events and Warnings All Events Warnings and Notifications Disabled B 4 Sun StorEdge 3000 Family RAID Firmware 3 25 User s Guide June 2003 TABLE B 6 Communication Parameters Continued User
30. Defined Parameter FC Default Setting SCSI Default Settings Range of Values Communication Parameters gt SNMP Configuration SNMP Agent Not Set Not Set Type a name Community Name SNMP Trap Destination Not Set Not Set Type a community name Community Name for each of the parameters Parameters 1 through 4 that you want to use SNMP Trap Destination Not Set Not Set Type an IP address for each IP Address Parameters of the parameters that you 1 through 4 want to use Internet Protocol Not Set Not Set Type the Internet Protocol for the SNMP configuration TABLE B 7 Caching Parameters User Defined Parameter FC Default Setting SCSI Default Settings Range of Values Write Back Cache Enabled Enabled Disabled Enabled Optimization for Sequential Sequential Sequential or Random Random Sequential cannot be changed after cannot be changed after the creation of a logical the creation of a logical drive drive Appendix B Parameter Summary Tables B 5 TABLE B 8 Peripheral Device Type Parameters User Defined Parameter FC Default Setting SCSI Default Settings Range of Values Enclosure Services Enclosure Services Device Device Peripheral Device Type Peripheral Device Type Connected Connected Qualifier No Device Present Direct Access Device Sequential Access Device Processor Device CD ROM Device Scanner Device MO Device Storage Array Controller Device Unknown De
31. Device Configuration FIGURE 9 1 View and Edit Peripheral Devices Menu 9 1 Viewing Peripheral Device Controller Status To view the status of each controller perform the following steps 1 Select view and edit Peripheral devices on the Main Menu 2 Select the View Peripheral Device Status option A table will display the status m lt Main Menu gt Quick installation view and edit Logical drives view and edit logical Volumes view and edit Host luns view and edit scsi Drives view and edit Scsi channels view and edit Configuration parameters view and edit Peripheral devices s View Peripheral Device Status v v D ITEM STATUS LOCATION al Redundant Controller Enabled Primary SAF TE Device Operational Channel ID 14 FIGURE 9 2 View Peripheral Device Status 9 2 Viewing Peripheral Device SAF TE Status To check the status of SAF TE components temperature sensors cooling fans the beeper speaker power supplies and slot status perform the following steps The SAF TE controller is located on the SCSI I O module 1 From the Main Menu select view and edit Peripheral devices and press Return 9 2 Sun StorEdge 3000 Family RAID Firmware 3 25 User s Guide June 2003 2 Select View Peripheral Device Status and press Return lt Main Menu gt Quick installation view and edit Logical drives view and edit logical Volumes view and
32. Drive Assign to Secondary Controller Yes L No ecucceccecBo 6 NONE 7 NONE The reassignment is evident from the view and edit Logical drives screen A P in front of the LG number means that the logical drive is assigned to the primary controller An S in front of the LG number means that the logical drive is assigned to a Secondary controller For example S1 indicates that logical drive 1 assigned to the secondary controller Note The editable logical drive NAME name is used only in the RAID firmware administration and monitoring and does not appear anywhere on the host You can create a logical drive NAME after the logical drive is created Select the logical drive in the above screen and press Return Then select logical drive name enter the desired name and press Return Press Esc to return to the Main Menu Reset the controller to implement the change Select system Functions on the Main Menu Then select Reset Controller and press Return You must reset the controller for the changes to take effect 3 6 Partitioning a Logical Drive You can divide a logical drive into several partitions or use the entire logical drive as a single partition You might configure up to 32 partitions for each logical drive For guidelines on setting up 1
33. Functions User Defined Parameter FC Default Setting SCSI Default Setting Range of Values Mute Beeper No No Yes No change Password No No Type a password No Reset Controller No No Yes No Shutdown controller reserved No No Yes No Controller Maintenance Restore nvram from disks No No Yes No Save nvram to disks No No Yes No Controller Maintenance gt Advanced Maintenance Functions Download Boot Record with No No Yes Firmware No B 10 Sun StorEdge 3000 Family RAID Firmware 3 25 User s Guide June 2003 B 6 Keeping Specific Parameter Defaults Do Not Change these Default Parameters unless directed Default Parameter by Technical Support Fault Management Drive Predictable Failure Mode SMART Disabled on drives SDRAM ECC Enabled SCSI Parameters Data Transfer Rate sync transfer clock 80 MHz Wide Transfer Enabled Parity Check Enabled Spin Up Parameters SCSI Motor Spin Up Disabled SCSI Reset at Power Up Enabled Disk Access Delay Time 15 none to 75 seconds Appendix B Parameter Summary Tables B 11 B 12 Sun StorEdge 3000 Family RAID Firmware 3 25 User s Guide June 2003 APPENDIX C Event Messages This appendix lists the following event messages Controller Events on page C 1 SCSI Drive Events on page C 2 Logical Drive Events on page C 4 General Target Alerts on page C 6 T
34. ID 2 ID 3 ID 4 ID 5 ID 6 lt Main Menu gt Quick installation view and edit Logical drives view channel Mode Primary controller scsi id ESecondary controller scsi ids scsi lerminator sync transfer Clock Wide transfer Change Secondary Controller SCSI ID View and edit scsi target parity check _ Enabled ves view chip inFormation Wide IS On R e S O E wide L onf asye Caution Editing a drive channel SCSI ID may create conflicts with the controller communication channels and create confusion in tracking the status of drive IDs in either single bus or dual bus configurations For default drive channel IDs refer to Permanent SCSI Drive Channel IDs on page 7 7 7 7 Setting a SCSI Channel Termination Reserved Do not use this menu option It is reserved for specific troubleshooting methods and should be used only by qualified technicians Typically the default setting is not changed If you are a qualified technician and have reason to perform this operation follow these steps 1 Select the channel for which you want the terminator enabled or disabled and press Return 2 Select scsi Terminator and press Return 7 12 Sun StorEdge 3000 Family RAID Firmware 3 25 User s Guide June 2003 A confirmation message is displayed lt Main Menu gt Quick installation view and edit Logical drives view and edit logical Volum
35. ID number 0 through 15 and press Return again 3 Select view and edit scsi Id and press Return Select Add Channel SCSI ID Chapter 7 Viewing and Editing SCSI Channels 7 9 4 Select the controller on which you want to add a host ID Main Menu gt Quick installation view and edit Logical drives view and edit logica olumes view and edit Host luns view and edit scsi Drives view and edit Scsi channels i Most ECAI ID 2 er BD econdary Controller elete anne elw wiwiw www Ha UBWNEFOVONIOUID n ee 5 Select an ID number for that controller Note To create a total of 128 LUNs you must have a minimum of four host IDs two each for Channels 1 and 3 and might have a maximum of six host IDs two each for Channels 1 and 2 and 3 Each host ID can have up to 32 partitions which are then mapped to LUNs to create a total not to exceed 128 6 From the Main Menu select system Functions then Reset controller The configuration change takes effect only after the controller is reset 7 5 Deleting a Host Channel SCSI ID lt Main Menu Quick installation view and edit Logical drives view and edit logical Volumes view and edit Host luns view and edit scsi Drives view and edit Scsi_ channels pom Delete ee eee Controller SCSI ID 1 ane To delete a host channel SCSI ID perform the following steps 1 On the Main Menu select view and ed
36. If you want to restart the controller after shutdown confirm when prompted that you want to reset the controller after the shutdown function has completed To shut down a controller with the option of resetting it automatically follow these steps 1 Select system Functions from the Main Menu and press Return The system Functions menu is displayed 10 6 Sun StorEdge 3000 Family RAID Firmware 3 25 User s Guide June 2003 lt Main Menu gt Quick installation view and edit Logical drives view and edit logical Volumes view and edit Host luns view and edit scsi Drives view and edit Scsi channels view and edit Configuration parameters view and edit ee devices v v Mute beeper change Password Reset controller Shutdown controller Controller maintenance 2 Select the Shutdown Controller menu option A prompt asks if you want to shut down the controller 3 Select Yes and press Return A status and confirmation message tells you that the controller shutdown is complete and asks if you want to reset the controller lt Main Menu gt Quick installation view and edit Logical drives view and edit logical Volumes view and edit Host luns view and edit scsi Drives view view wack Shutdown Controller Completed iew Power off Controller or Reset Controller t Reset Controller Yes No Palo n controller Controller maintenance 4 Select Yes a
37. On the Main Menu select view and edit Configuration parameters Select Communication Parameters then select Internet Protocol TCP IP Press Return on the chip hardware address and then select Set IP Address Enter the desired IP address NetMask and Gateway values Reset the controller for the configuration to take effect Select system Functions from the Main Menu then select Reset controller and press Return 8 36 Sun StorEdge 3000 Family RAID Firmware 3 25 User s Guide June 2003 CHAPTER 9 Viewing and Editing Peripheral Devices This chapter describes viewing and editing parameters for peripheral devices Topics covered include m Viewing Peripheral Device Controller Status on page 9 2 m Viewing Peripheral Device SAF TE Status on page 9 2 a Setting Peripheral Device Entry on page 9 5 a Redundant Controller Mode Do Not Change on page 9 5 a Enable UPS Status on page 9 6 m Setting the UPS Power Fail Signal on page 9 7 a Viewing the Controller Voltage and Temperature Status Window on page 9 8 lt Main Menu gt Quick installation view and edit Logical drives view and edit logical Volumes view and edit Host luns view and edit scsi Drives view and edit Scsi channels view and edit Configuration parameters edit Peripheral de Define Peripheral Device Active Signal Adjust LCD Contrast i Controller Peripheral
38. Partition Size MB Part ition Offset MB Size MB 1 4 Select Map Host LUN Map H LN reate Hos ilter Entry 5 Confirm the mapping scheme by selecting Yes Logical Drive Partition nanne The same partition might be mapped to multiple LUNs on multiple host channels This feature is necessary for clustered environments and redundant path environments 6 Press the Esc key to return to the Main Menu 7 Repeat Step 1 through Step 6 for each partition until all partitions are mapped to a LUN 8 Select system Functions on the Main Menu and select Reset Controller to implement the new configuration settings 9 To verify unique mapping of each LUN unique LUN number unique DRV number or unique Partition number select the view and edit Host luns command and press Return 10 Reboot the host s to complete the settings and confirm that LUNs are connected to and visible by the hosts For additional Solaris operating environment information refer to Chapter 6 in the Sun StorEdge 3310 SCSI Array Installation Operation and Service Manual 5 4 Sun StorEdge 3000 Family RAID Firmware 3 25 User s Guide June 2003 9 3 Planning for 128 LUNs If you want to create 128 LUNs which is the maximum number of storage partitions which can be mapped for a RAID array you need to set up one of the following configurations m Create four host IDs and four logical
39. Replacement 6 11 6 10 1 Flashing Selected SCSI Drive 6 13 6 10 2 Flashing All SCSI Drives 6 14 6 10 3 Flashing All But Selected Drives 6 14 6 11 Fault Protection Measures 6 15 6 11 1 Cloning a Failing Drive 6 15 6 11 2 Viewing the Status of a Cloning Operation 6 20 6 11 3 Understanding SMART Technology 6 21 6 11 4 How Sun StorEdge 3000 Family Arrays Use SMART 6 21 6 11 5 Enabling SMART From Firmware Menus 6 22 6 11 6 Detect Only 6 24 6 11 7 Detect and Perpetual Clone 6 24 6 11 8 Detect and Clone Replace 6 25 6 12 SCSI Drive Utilities Reserved 6 26 6 12 1 SCSI Drive Low Level Format 6 27 6 12 2 SCSI Drive Read Write Test 6 28 7 Viewing and Editing SCSI Channels 7 1 7 1 SCSI Channel Status Table 7 1 7 1 1 SCSI Drive Channel Commands 7 4 7 1 2 SCSI Host Channel Commands 7 5 7 2 Configuring SCSI Channels as Host or Drive 7 5 7 2 1 SCSI Default Channel Settings 7 5 7 2 2 Changing Channel Assignments 7 6 Sun StorEdge 3000 Family RAID Firmware 3 25 User s Guide June 2003 7 3 7 4 7 9 7 6 7 7 7 8 79 7 10 Permanent SCSI Drive Channel IDs 7 7 Creating Additional Host IDs 7 8 Deleting a Host Channel SCSIID 7 10 Drive Channel SCSI IDs Reserved 7 11 Setting a SCSI Channel Termination Reserved 7 12 Setting Transfer Clock Speed 7 13 7 8 1 Host Channel Transfer Clock Speed 7 14 7 8 2 Drive Channel Transfer Clock Speed 7 14 Setting the SCSI Transfer Width 7 14 Viewing and Editing Drive Channel SCSI Targets 7 15 7 10 1 Prov
40. SCSI ID applied SID Secondary controller s SCSI ID mapping Multiple SCSI IDs Host Channel mode only x The SCSI ID for host LUNs mapped to this channel in host channel mode SCSI ID for the secondary controller in drive channel mode NA No SCSI ID applied DefSynClk Default SCSI bus synchronous clock xx xMHz Maximum synchronous transfer rate set to xx x Async Channel is set for asynchronous transfers DefWid Default SCSI bus width Wide Channel is set to allow wide 16 bit transfers Narrow Channel is set to allow narrow 8 bit transfers Serial Fibre Channel loops do not use narrow or wide bus widths S Signal S Single ended L LVD F Fibre Term Terminator status On Termination is enabled Chapter 7 Viewing and Editing SCSI Channels 7 3 TABLE7 1 Parameters Displayed in the SCSI Channel Window Continued Parameters Description Off Termination is disabled NA For a redundant controller communications channel RCCOM CurSynClk Current SCSI bus synchronous clock xx xMHz The current speed at which the channel is communicating Async The channel is communicating asynchronously or not device is detected Empty The default SCSI bus synchronous clock has changed Reset the controller for changes to take effect CurWid Current SCSI bus width Wide The channel is currently servicing wide 16 bit transfers Narrow The channel is currently servicing wide 8 bit transfers Empty The default SCSI bus width has chang
41. The frequency of read write activities can vary from one host application to another The application can be a SQL server Oracle server Informix or other database server of a transaction based nature Applications like video playback and video post production editing require read write operations involving huge files in a sequential order The RAID level setting depends on what is most important for a given application capacity availability or performance Before revising your RAID level prior to storing data you need to choose an optimization scheme and optimize the controller for your application The controller optimization mode can be changed only when there are no logical configurations Once the controller optimization mode is set the same mode is applied to all logical drives Data stripe size is changed once the optimization method is changed Therefore you cannot proceed with changing the optimization mode until data is backed up all logical drives are deleted and the array is restarted Therefore be careful in choosing an optimization mode for your controller Note The controller factory defaults guarantee the optimal performance for most applications a How many logical drives do you want and at what RAID level A logical drive is a set of drives grouped together to operate under a given RAID level It appears as a single contiguous storage volume The controller is capable of grouping drives into eight logical
42. Write Test and then select View Read Write Testing Progress or List Current Bad Block Table 6 28 Sun StorEdge 3000 Family RAID Firmware 3 25 User s Guide June 2003 Vendor and Product ID Fa 2 ol 9999 am ol on Line Te ___0RS aas600 mie 2f 2f af 9999 so of on ce ren DoRs 2560 of ow Line To ooRs ses600 DDRS 3456 D DDRS 3456 D set slot Number add DDRS 3456 D Address Stat Address Stat Address Stat at Address Stat Address Stat If you want to stop testing the drive select Abort Drive Testing and press Return Chapter 6 Viewing and Editing SCSI Drives 6 29 6 30 Sun StorEdge 3000 Family RAID Firmware 3 25 User s Guide June 2003 CHAPTER 7 Viewing and Editing SCSI Channels This chapter explains how to view and edit SCSI channels Topics covered include m SCSI Channel Status Table on page 7 1 a SCSI Drive Channel Commands on page 7 4 a SCSI Host Channel Commands on page 7 5 a Configuring SCSI Channels as Host or Drive on page 7 5 a SCSI Default Channel Settings on page 7 5 a Changing Channel Assignments on page 7 6 Permanent SCSI Drive Channel IDs on page 7 7 Creating Additional Host IDs on page 7 8 Deleting a Host Channel SCSI ID on
43. _ OME PENT E STSRRCORTSONEEE 2 23 _ 24722 1e0N6 none NEW ORV SEAGATE STSS66051 SUNBEG Note A logical drive created in a RAID level which has no data redundancy RAID 0 does not support spare drive rebuilding Optionally select Logical Drive Assignments to assign this logical drive to the secondary controller By default all logical drives are automatically assigned to the primary controller Redundant Controller Logical Drive Assign to Secondary Controller es No If you use two controllers for the redundant configuration a logical drive can be assigned to either of the controllers to balance workload Logical drive assignment can be changed any time later a Press Esc key or No to exit from this window without changing the controller assignment b Select Yes press Return to confirm and then press Esc key to continue when all the preferences have been set A confirmation box is displayed on the screen c Verify all information in the box before choosing Yes to proceed Chapter 3 Viewing and Editing Logical Drives 3 9 Raid Level RAID S Online SCSI Drives Maximum Drive Capacity 9999 MB Spare SCSI Drives Logical Drive Assignment Primary Controller Create Logical Drive ves No A message will indicate that the logical drive initialization has begun d Press Esc key to cancel the Notification prompt e After the logical drive initializa
44. access data on the drive 8 11 Disk Array Parameters 1 To display the Disk Array Parameters menu select View and edit Configuration parameters from the Main Menu and press Return 2 Select Disk Array Parameters to display the following submenu options Chapter 8 Viewing and Editing Configuration Parameters 8 25 8 11 1 lt Main Menu gt Quick installation view and edit Logical drives view and edit logical Volumes view and edit Host luns view and edit scsi Drives view and edit Scsi channels view and edit Configuration parameters Vv Communication Parameters Caching Parameters Host side SCSI Parameters Drive side SCSI Parameters Vis Array Parameters C ters Rebuild Priorit ow Verification on Writes Rebuild Priority lt Main Menu gt Quick installation view and edit Logical drives view and edit logical Volumes view and edit Host luns view and edit scsi Drives view and edit Scsi channels view and edit Contiguration parameters rameters rs arameters Improved Parameters High eters ters Rebuild Priorit ow Verification on Writes The RAID controller provides a background rebuilding ability This means the controller is able to serve other I O requests while rebuilding the Logical Drives The time required to rebuild a drive set will largely depend on the total capacity of the Logical Drive being rebuilt Additionally the rebuilding process is totall
45. and Product TO visa 2 o 9999 4m8 of ON LINE ren _oRS easco0__ e 2 1 999 aome of on tne rem _oors ae5600 EEE View drive information Delete global local spare drive can scsi drive set slot Number Delete Spare Drive add drive Entry Identify scsi driv The spare drive you deleted or any drive you replaced from a logical unit will be indicated as a used drive 6 8 Setting Slot Numbers This function is used to optionally add a slot number identifier in the Slot column of the SCSI drive table This function has no effect on controller operation m lt Main Menu gt __ Quick installation view and edit Logical drives view and edit logical Volumes view and edit Host luns and edit s 4 View drive information add Local spare drive atls Vendor 4nd Prod uct I add Global spare drive Delete global local spare drive Scan scsi drive is ON LINE HITACHI DK31CJ 72FC J SAF TE SDR GEM200 add drive Entry Slot Number Cicak drive akats jo ON LINE HITACHI DK31CJ 72FC Identifying scsi drive hE USED prv HITACHI DK31CJ 72FC clone Failing drive scsi drive Utilities FIGURE 6 3 Set Slot Number To set or edit a slot number perform the following steps 1 On the Main Menu select view and edit scsi Drives and press Return A list of the connected SCSI drives is displayed 2 Select a drive from the SCSI dr
46. bus configuration or a dual bus configuration based on where the SCSI bus cable is attached on the I O module For bus configuration details refer to the Sun StorEdge 3000 Family Installation Operation and Service Manual for your array The drive bus configuration determines how drives and drive IDs are assigned to drive channels on the controller m A single bus configuration assigns all 12 disk drive IDs in a controller to one channel typically CH 0 for the RAID array and CH 2 for an expansion unit RAID Array Single Bus Configuration Default IDs I Disk 1 CHO IDo Il Disk 4 CHO ID3 Il Disk 7 CHO ID8 W Disk10 CHO 1D11 Lee at eet et ee p Disk 2 cHo 101 oo p Disk 5 cHo 1D4 J Disk 8 CHo ID9 eo J Disk 11 CHO ID12 L o C7 O Me mnm 9 Mlle O a e O I Disk 3 CHO ID2 ll Disk 6 CHO ID5 Il Disk 9 CHO ID10 I Disk12 CHO ID13 GLEE oe aes EL Ee ORRE Lillo Expansion Unit Single Bus Configuration Default IDs O J Disk 4 cH2 100 _ ss J Disk 4 k cH2 iD3 J Disk 7 5 cH2 ip8 ae a Disk 10 o ceo O C_t_ _t C_1_ _t tj _1_ _ft fo J Disk 2 CH2 1D1 i ee J Disk 5 cH2 104 J Disk 8 cH2 1D9 oo q Disk 11 CH2 1D19 oo Q O oo O p Disk 3 CH2 1D2 1 J Disk 6 CH2 1D5 J Disk 9 CH2 1D10 4 Disk 12 cH2 1
47. create as many as eight logical drives from drives on any SCSI bus When prompted to Create Logical Drive select Yes and press Return to proceed A pull down list of supported RAID levels is displayed Select a RAID level for this logical drive RAID 5 is used in the following example screens For brief descriptions of RAID levels refer to Default Logical Drives and RAID Levels on page 3 2 For more information about RAID levels see Basic RAID Concepts and Planning on page 1 1 Select your member drive s from the list of available physical drives The drives can be tagged for inclusion by positioning the cursor bar on the drive and then pressing Return An asterisk is displayed on the selected physical drive s To deselect the drive press Return again on the selected drive The asterisk disappears Note You must select at least the minimum number of drives required per RAID level a Use the up and down arrow keys to select more drives Chapter 3 Viewing and Editing Logical Drives 3 7 nu RAID Size lt MB gt Status Jo ema NAME m a Slot Ch1 ID Size lt MB gt Speed LG_DRU Status Vendor and Product ID 9999 40MB aa 9999 40MB ESEA SEAGATE ST31055W NS af 2 oo ao enn orros ccucecececR m 4 9999 4 MB NONE NEW DRU SEAGATE ST31055W 5 NONE 6 NONE NONE b After all physical drives have been selected for the logica
48. drive ID SCSI ID of the drive 6 2 Sun StorEdge 3000 Family RAID Firmware 3 25 User s Guide June 2003 TABLE6 1 Parameters Displayed in the Drive Status Window Continued Parameters Description Size MB Drive capacity in megabytes Speed xxMB Maximum synchronous transfer rate of this drive Async The drive is using asynchronous mode LG_DRV x The SCSI drive is a drive member of logical drive x If Status shows STAND BY the SCSI drive is a local spare drive of logical drive x Status GLOBAL The SCSI drive is a global spare drive INITING The drive is initializing ON LINE The drive is in good condition REBUILD The drive is rebuilding STAND BY Local spare drive or global spare drive The local spare drive s LG_DRV column shows the logical drive number The global spare drive s LG_DRV column shows Global NEW DRV The new drive has not been configured to any logical drive or as a spare drive USED DRV The drive was previously configured as part of a logical drive from which it has been removed it still contains data from this logical drive FRMT DRV The drive has been formatted with reserved space allocated for controller specific information BAD Failed drive ABSENT Drive slot is not occupied MISSING Drive once existed but is now missing SB MISS Spare drive missing Vendor and Vendor and product model information of the drive Product ID A physical drive has a USED status when it was once a
49. drive Name logical drive Assignments Expand logical drive add Scsi drives reGenerate parity cOpy and replace drive Under this menu command you can create multiple logical drives Once logical drives are created you can manipulate them by selecting the desired LG and pressing Return To create logical drives you must map the logical drives to a host channel with the view and edit Host luns command If this step is skipped the logical drives will not be visible to the host 32 Default Logical Drives and RAID Levels A logical drive is a set of drives grouped together to operate under a given RAID level Each controller is capable of supporting as many as eight logical drives The logical drives can have the same or different RAID levels a A logical drive can be further divided into a maximum of 32 partitions m The total number of partitions must not exceed 128 partitions per RAID array To create a maximum of 128 partitions refer to Planning for 128 LUNs on page 5 5 For a 12 drive array the RAID array is preconfigured as follows 3 2 Sun StorEdge 3000 Family RAID Firmware 3 25 User s Guide June 2003 a Two RAID 5 logical drives consisting of five physical drives in each logical drive m Two global spares For a 5 drive array the RAID array is preconfigured as follows m One RAID 5 logical drive consisting of four physical drives m One global spare For more information about spares and RAI
50. drives each configured on the same or different RAID levels Different RAID levels provide varying degrees of performance and fault tolerance Do you want to reserve any spare drives Spare drives allow for the unattended rebuilding of a failed drive heightening the degree of fault tolerance If there is no spare drive data rebuild has to be performed manually Drives must be configured and the controller properly initialized before a host computer can access the storage capacity Chapter 1 Basic RAID Concepts and Planning 1 21 1 8 Basic Configuration Overview This section briefly outlines steps you can take to configure your array 1 If a hard drive was connected after the controller completes initialization use the Scan scsi drive function under the view and edit scsi Drives in the Main Menu to let the controller recognize the newly added hard drive and to make it available to be configured as a member of a logical drive 2 Optionally define any additional partitions for each logical drive Refer to Partitioning a Logical Drive on page 3 11 A logical drive can be divided into a maximum of 32 Partitions A total of 128 partitions can be created in an array 3 Optionally add host SCSI IDs and more logical drives to create 128 LUNs Refer to a Planning for 128 LUNs on page 5 5 a Creating Additional Host IDs on page 7 8 a Creating Logical Drive s on page 3 4 4 Map each logical d
51. drives view and edit logical Volumes view and edit Host luns view an es view an Disable nels TEME 1 minute ion parameters V 2 minutes C C C Always Check H L Controller Logo DII Password Validation Timeout Always Check D Controller Unique Identifier Not Defined R Controller Parameters Select a validation timeout from the list displayed and press Return Enable a validation timeout from one minute to Always Check The Always Check timeout will disable any configuration change without entering the correct password A prompt will then be displayed Select Yes to confirm Controller Unique Identifier The Controller Unique Identifier is automatically set by the SAF TE device The Controller Unique Identifier is used to create Ethernet Addresses and World Wide Names Caution However if the array is powered off during the controller replacement or if you replaced a controller in a single controller configuration you must set the Controller Unique Identifier to the correct value or the array could become inaccessible To set the Controller Unique Identifier parameter to the correct value perform the following steps On the firmware main menu select view and edit configuration parameters then select Controller Parameters and press Return From the Controller Parameters menu select Controller Unique Identifier lt hex gt and pre
52. edit Logical drives view and edit logical Volumes EEE 0 400 RAIDS view and edit Host_luns v 1 LD 0 1 400 RAIDS v EA v CHL 1 ID 1 Secondary Contro 2 LD 0 2 400 RAIDS v CHL 3 ID 2 Secondary Contro s CHL 3 ID 3 Primary Controll 3 LD 0 3 400 RAIDS v Edit Host ID WWN Name List v 4 LD 0 4 400 RAIDS 5 LD 0 5 400 RAIDS 6 LD 0 6 400 RAIDS 7 LD 0 7 400 RAIDS m lt Hain Menu gt Quick installation LUN LV LD DRV Partition Size MB RAID view and edit Logical drives view and edit logical Volumes MICU T E ETTE view and edit Host _luns v 1 LD 1 1 300 RAIDS v CHL 1 ID O Primary Controll v EE E 2 LD 1 2 300 RAIDS v CHL 3 ID 2 Secondary Contro s CHL 3 ID 3 Primary Controll 3 LD 1 3 300 RAIDS v Edit Host ID WWN Name List v 4 LD 1 4 300 RAIDS 5 LD 1 5 300 RAIDS 6 LD 1 6 300 RAIDS 7 LB 1 7 300 RAIDS m lt Hain Menu gt Quick installation LUN LV LD DRV Partition Size MB RAID view and edit Logical drives view and edit logical Volumes IE EE view and edit Host _luns v 1 LD 3 1 350 RAIDS v CHL 1 ID Primary Controll v CHL 1 ID 1 Secondary Contro 2 LD 3 2 350 RAIDS v CHL 3 ID 2 Secondary Control s CHL 3 ID 3 Primary Controll 3 LD 3 3 350 RAIDS v Edit Host ID WWN Name List v 4 LD 3 4 350 RAIDS 5 LD 3 5 350 RAIDS 6 LD 3 6 350 RAI
53. level that does not support redundancy such as RAID 0 also does not support spare drive rebuild To assign a local spare drive perform the following steps Select view and edit scsi Drives Highlight the drive which you want to designate as a spare and press Return Select add Local spare drive When the prompt Add Local Spare is displayed select Yes and assign the logical drive which will have the local spare 6 3 Creating a Global Spare To create a global spare a spare drive that will automatically be used to replace any failed drive within the array perform the following steps 1 Select view and edit scsi Drives 6 4 Sun StorEdge 3000 Family RAID Firmware 3 25 User s Guide June 2003 2 Highlight the drive that you want to designate as a spare press Return and select add Global spare drive 3 When the prompt Add Global Spare is displayed select Yes Quic Slot Chl Size MB S d LG_DRV Stat Vend d Product ID view 6 7 5 34732 160MB 2 ON LINE SEAGATE ST3366 5LSUN36G view 1 View drive information LINE SEAGATE ST3366 S5LSUN36G view add Local spare drive view LINE SEAGATE ST3366Q5LSUN36G view syst Add Global Spare Drive T DRV SEAGATE ST3366 5LSUN36G view s view 7 Yes No T DRV SEAGATE ST3366 SLSUN36G disk Reserved space unformatted T DRV SEAGATE ST3366 5SLSUN36G JEEE q GOMB NON PT oi sarteoetsii emv scrunch 6 4 Viewing D
54. luns ew and edit scsi Drives View drive information add Local spare drive add Global spare drive 0 ON LINE HITACHI DK31CJ 72FC Delete global local spare arive h o ON LINE HITACHI DK31CJ 72FC Scan scsi drive SAF TE 0 ON LINE SDR GE HITACH set slot Number add drive Entry SCSI Channel 2 Clear drive status SCSI Channel 3 Identifying scsi drive f SCSI Channel 4 clone Failing drive Channel 5 scsi drive Utilities F ats Vendor qnd Product Input Fibre ID FIGURE 6 4 Add Drive Entry 1 On the Main Menu select view and edit scsi Drives and press Return 2 Select an insertion spot within the SCSI drive table and press Return 3 Select the add drive Entry function and press Return 4 A channel list will be displayed Select a channel 5 Enter the desired ID number For installed SCSI drives a table will be shown indicating the available IDs 6 Then press the Return key and select Yes 7 A confirmation box will then be displayed Select Yes and press Return 6 9 1 Removing an Empty Drive Entry To remove an empty drive entry delete its slot number specify the value 0 then remove the drive entry by performing the following steps 1 On the Main Menu select view and edit scsi Drives and press Return 2 Select the desired SCSI drive and press Return 3 Select set slot Number select
55. page 7 10 Drive Channel SCSI IDs Reserved on page 7 11 Setting a SCSI Channel Termination Reserved on page 7 12 Setting Transfer Clock Speed on page 7 13 a Host Channel Transfer Clock Speed on page 7 14 a Drive Channel Transfer Clock Speed on page 7 14 m Setting the SCSI Transfer Width on page 7 14 m Viewing and Editing Drive Channel SCSI Targets on page 7 15 Providing a Slot Number on page 7 16 Maximum Synchronous Transfer Clock on page 7 17 Maximum Transfer Width on page 7 17 Parity Check on page 7 18 Disconnecting Support on page 7 18 Maximum Tag Count on page 7 19 7 1 SCSI Channel Status Table To check and configure SCSI channels from the Main Menu select view and edit Scsi channels and press Return The following screen displays the status of all SCSI channels for this controller 7 1 M Caution Do not change the PID and SID values of drive channels lt Main Menu gt Quick installation view and edit Logical drives view and edit logical Volumes view and edit Host luns view and edit scsi Drives view and edit Scsi channels Y Chl Mode PID SID DefSynC1k DefWid Term CurSynC1k CurWid 80 OMHz 80 MHz 80 OHHz 80 OMHz 80 MHz 80 OMHz m re Note A mapped host channel sometimes shows the current sync clock as Async Narrow and correctly identi
56. part of a logical drive but no longer is This can happen for instance when a drive in a RAID 5 array is replaced by a spare drive and the logical drive is rebuilt with the new drive If the removed drive is later replaced in the array and scanned the drive status is identified as USED since the drive still has data on it from a logical drive When the RAID set is deleted properly this information is erased and the drive status is shown as FRMT rather than USED A drive with FRMT status has been formatted with either 64 KB or 256 MB of reserved space for storing controller specific information but has no user data on it Chapter 6 Viewing and Editing SCSI Drives 6 3 If you remove the reserved space using the View and Edit SCSI drives menu the drive status changes to NEW To handle BAD drives refer to Controller Failure on page 8 6 If two drives show BAD and MISSING status see Recovering From Fatal Drive Failure on page 8 13 6 2 Assigning a Local Spare Drive Maximum Drive Capacity 2999MB Pissign Spare Drives Status NEW DRY NEW DRV NEW DRV NEW DRV Speed Vendor and Product ID A local spare drive is a standby drive assigned to serve one specified logical drive When a member drive of this specified logical drive fails the local spare drive becomes a member drive and automatically starts to rebuild Note A logical drive configured as part of a RAID
57. the failed drive at the selected time interval Once the failed drive has been swapped with a drive that has adequate capacity to rebuild the logical drive the rebuild will begin automatically The default setting is Disabled which means that the controller will not auto detect the swap of a failed drive When the Periodic Drive Check Time is set to Disabled the controller is not able to detect any drive removal that occurs after the controller has been powered on The controller detects drive removal only when a host attempts to access the data on the drive 8 24 Sun StorEdge 3000 Family RAID Firmware 3 25 User s Guide June 2003 SCSI Motor Spin Up Disabled SCSI Reset at Power Up Disabled Disk Access Delay Time 60 seconds SCSI I1 0_Timeout 10 seconds Maximum Tag Count 32 Periodic Drive Check Time 10 seconds Urive side Parameters Dis Array Parameters Redundant Controller Parameters Controller Parameters To enable this feature perform the following steps 1 Select Periodic Auto Detect Failure Drive Swap Check Time and press Return 2 Select the interval you want and press Return A confirmation message is displayed 3 Select Yes and press Return to confirm the setting By choosing a time value to enable the Periodic Drive Check Time the controller polls all connected drives in the controller s drive channels at the assigned interval Drive removal is detected even if a host does not attempt to
58. to 18 disk drives 18 x 36 Mbytes or 648 Mbytes The advantages and disadvantages of different RAID levels are described in the following table TABLE 1 2 RAID Level Characteristics RAID Level Description RAID 0 Striping without fault tolerance provides maximum performance RAID 1 Mirrored or duplexed disks for each disk in the array a duplicate disk is maintained for fault tolerance RAID 1 does not improve performance over that of a single disk drive It requires 50 of total disk capacity for overhead RAID 3 One drive is dedicated to parity Data is divided into blocks and distributed sequentially among the remaining drives You need at least three physical drives for a RAID 3 logical drive Sun StorEdge 3000 Family RAID Firmware 3 25 User s Guide June 2003 TABLE 1 2 RAID Level RAID Level Characteristics Continued Description RAID 5 RAID 1 0 RAID 34 RAID 54 0 Striping with fault tolerance this is the best suited RAID level for multitasking or transaction processing In RAID 5 an entire transfer block is placed on a single drive but there are no dedicated data or Error Correction Code ECC drives The data and ECC are striped across each drive in the disk array so that each drive contains a combination of data and ECC blocks This allows data to be reconstructed on a replacement drive in the event of a single disk drive failure The primary advantages of RAID 5 are as fol
59. to a logical drive perform the following steps 1 From the Main Menu select view and edit logical drive and highlight a logical drive The drive selected for adding a SCSI drive should have a capacity no less than the original member drive If possible use drives of the same capacity because all drives in the array are treated as though they have the capacity of the smallest member drive in the logical array 3 22 Sun StorEdge 3000 Family RAID Firmware 3 25 User s Guide June 2003 2 Press Return to select a logical drive and choose add SCSI drives from the menu Proceed with confirming the selection LG ID LV RAID Size MB Status O LN SB FL NAME BIA ANAO EE SDE DE View scsi drives Delete logical drive Partition logical drive logical drive Nam logical drive Aga ignments Ex pand Log ical lt cucccec lt Bo zi Add Drives to Logical Drive 6 Lves No 7 L NONE 3 A list of available drives is displayed Select one or more drive s to add to the target logical drive by pressing Return The selected drive is indicated by an asterisk OS EE States On E a Slot chi 10 Size WB Speed L _DRV Status Vendor and Product 10 View scsi drives SA e a 2 jse none new oe af ef 999 one none neno i e 3 a 2999 seme
60. two partitions one 200 GB and one 36 GB All SCSI drives in a logical drive must be the same size namely 36GB or 73GB drives The new partition must be mapped to a host LUN in order for the HBA host bus adapter to recognize its presence If you want to add the new partition into an existing partition operating environment support is necessary Chapter 3 Viewing and Editing Logical Drives 3 21 m Expanding logical drives by adding more SCSI hard disk drives cannot be canceled once begun If a power failure occurs the expansion pauses and the controller does not automatically continue the expansion when the power comes back on Restarting of the RAID expansion must be performed manually a Ifa member drive of the logical drive fails during RAID expansion the expansion pauses The expansion resumes automatically after logical drive rebuild has been completed After new drives are added the capacity of the original logical drive is the same and the additional capacity is displayed as another partition new partition When expansion is completed data is re striped across the original and the newly added drives After adding SCSI drives the additional capacity is displayed as a new partition see FIGURE 3 4 2 GB 2G 2 GB ae ca N partitions H t Partitions N 1 new partition RAID 5 Logical Drive 8 GB FIGURE 3 4 Expansion by Adding Drive RAID levels supported RAID 0 3 and 5 To add a SCSI drive
61. with a battery so that the data stays intact even after the main power had been switched off Primary controller identifier number Redundant array of independent disks A configuration in which multiple drives are combined into a single virtual drive to improve performance and reliability Storage area networking A high speed open standard scalable network of storage devices and servers providing accelerated data access Small Computer Systems Interface An industry standard for connecting disk and tape devices to a workstation SCSI Enclosure Services driver An interface to SCSI Enclosure Services devices These devices sense and monitor the physical conditions within an enclosure as well as enable access to the status reporting and configuration features of the enclosure such as indicator LEDs on the enclosure Primary controller identifier number Self Monitoring Analysis and Reporting Technology The industry standard reliability prediction indicator for both the IDE ATA and SCSI hard disk drives Hard disk drives with SMART offer early warning of some hard disk failures so critical data can be protected Simple Mail Transfer Protocol A protocol for sending e mail messages between servers and from mail clients to mail servers The messages can then be retrieved with an e mail client using either POP or IMAP Simple Network Management Protocol A set of protocols for managing complex networks SNMP works by sending messages
62. your document with your feedback Sun StorEdge 3000 Family RAID Firmware 3 25 User s Guide part number 816 7296 13 Preface xvii xviii Sun StorEdge 3000 Family RAID Firmware 3 25 User s Guide June 2003 CHAPTER 1 Basic RAID Concepts and Planning A redundant arrays of independent disks or RAID offers major benefits in availability capacity and performance Sun StorEdge 3000 Family arrays provide complete RAID functionality and enhanced drive failure management This chapter covers the following concepts and planning guidelines m Before You Begin on page 1 2 a Determining Which Version of the RAID Firmware Applies to Your Array on page 1 2 a RAID Terminology Overview on page 1 2 Logical Drives on page 1 3 Logical Volumes on page 1 3 Understanding Local Spare Drives on page 1 3 Understanding Global Spare Drives on page 1 4 SCSI Channels on page 1 4 a RAID Levels on page 1 7 JBOD Single Drive Control on page 1 10 RAID 0 on page 1 10 RAID 1 on page 1 11 RAID 1 0 on page 1 12 RAID 3 on page 1 13 RAID 5 on page 1 14 Advanced RAID Levels on page 1 15 a Local and Global Spare Drives on page 1 16 a Local Spare Drives on page 1 16 a Global Spare Drives on page 1 17 a Using Both Local and Global Spare Drives on page 1 18 a Controller Defaults and Limitations on page 1 19 m Battery Operation on
63. 0 4 Resetting a Controller It is sometimes necessary after changing controller parameters to reset the controller before the parameter changes can take effect However there are two ways of resetting a controller from the firmware application the Reset Controller menu option and the Shutdown Controller menu option It is important that you distinguish between the results of these two menu options Use the Reset Controller menu option to reset the controller without saving the contents of the controller s cache to disk This can be desirable if you believe that a software crash or hardware fault may have corrupted the cached data Caution If you want to write the cache contents to disk do not use the Reset Controller menu option while the controller is connected to host systems Instead use the Shutdown Controller menu option and select Yes when you see the Reset Controller prompt See Shutting Down the Controller on page 10 6 for more information To reset the controller without saving cache contents follow these steps 1 Select system Functions from the Main Menu and press Return lt Main Menu gt Quick installation view and edit Logical drives view and edit logical Volumes view and edit Host luns view and edit scsi Drives view and edit Scsi channels view and edit Configuration parameters view and edit nee devices v v Mute beeper change P
64. 013 O I fo Or 2p O m A dual bus configuration assigns 6 disk drive IDs to CH 0 and 6 disk drive IDs to CH 2 in the RAID array and then typically adds an additional 6 disk drive IDs to both CH 0 and CH2 when it is connected to an expansion unit Chapter 7 Viewing and Editing SCSI Channels 7 7 RAID Array Dual Bus Configuration Default IDs WP Disi Il Disi 7 Il Disi 1 ll Disk 10 cHo iD3 O jaen a CH2 ID0 Loof Je 5 CH2 ID3 IL Wp pise7 a CHO IDO Joo 1 m a 4 J Disk 2 CH2 ID1 L oo J Disk 5 CH2 ID4 L J Disk 8 CHO ID1 L 00 4 Disk 11 CHO ID4 g 0 fear e A Ao Ek peer A mc 10 O WW Disk 3 m CH2 ID2_ II J Disk 6 amp CH2 ID5 IL J Disk 9 5 CHO ID2 i 4 Disk 12 F CH0 ID5 L 6 Expansion Unit Dual Bus Configuration Default IDs O De en ar J Disk 4 o t J Disk 7 o CH0 ID8 u oa p Disk 10 a L O J ora A OO fous comme a 00 D aea A o O ooa O0 mle O mhb Enan O m 6 Je mee i Je d a J EL k For JBOD cabling and drive ID information refer to the appendix on JBODs in the refer to the Sun StorEdge 3000 Family Installation
65. 142 SMART CH _ ID _ Predictable Failure Detected 1142 SMART CH _ ID _ Predictable Failure Detected Starting Clone 1142 SMART CH _ ID _ Predictable Failure Detected Clone Failed Notifications 11c1 CHL _ ID _ SCSI Drive NOTICE Scan scsi drive Successful Appendix C Event Messages C 3 C 3 SCSI Channel Events SCSI Channel Event messages include C 3 1 Alerts 113f CHL _ ALERT Redundant Loop Connection Error Detected on ID 113f CHL _ SCSI Drive Channel ALERT SCSI Channel Failure 113f CHL _ ALERT Fibre Channel Loop Failure Detected 113f CHL _ ALERT Redundant Loop for Chl _ Failure Detected 113f CHL _ ALERT Redundant Path for Chl _ ID _ Expected but Not Found 113f CHL _ ID _ ALERT Redundant Path for Chl _ ID _ Failure Detected C32 Notifications 113f CHL _ NOTICE Fibre Channel Loop Connection Restored 113f CHL _ ID _ NOTICE Redundant Path for Chl _ ID _ Restored C 4 Logical Drive Events Logical Drive Event messages include C 4 Sun StorEdge 3000 Family RAID Firmware 3 25 User s Guide June 2003 C 4 1 C 4 2 Alerts 2101 LG lt NA Logical Drive Index gt Logical Drive ALERT CHL _ ID _ SCSI Drive Failure 2103 LG _ Logical Drive ALERT Rebuild Failed 2106 LG _ Logical Drive ALERT Add SCSI Drive Operation Failed 2102 LG _ Logical Drive ALERT Initialization Failed 2104 LG _ Logical Drive ALERT Parity Regeneration Failed 2105 LG _ Logical Drive ALERT Expansion Fai
66. 2 highlight the line press Return and select the number 32 Chapter 5 Viewing and Editing Host LUNs 5 5 lt Main Menu gt Quick installation view view Maximum Queued 1 0 Count 256 view LAIST TE view Max Number of Concurrent Host LUN Connection 16 view Number of Tags Reserved for each Host LUN Connectio 1 LUN Peripheral Device Type Parameters 2 LUNs m Host Cylinder Head Sector Mapping Configuration 4 LUNs s C Fibre Connection Option Point to point preferred 8 LUNs v C 16 LUNs Mi Host side SCSI Parameters 32 LUNs Drive side SCSI Parameters Disk Array Parameters Redundant Controller Parameters Controller Parameters 3 Create at least four logical drives For the detailed procedure refer to Creating Logical Drive s on page 3 4 4 For each logical drive create a number of partitions per logical drive until you reach a total of 128 partitions then map those partitions to the host IDs For the detailed procedures refer to Partitioning a Logical Drive on page 3 11 and Mapping Logical Drive Partitions to Host LUNs on page 5 1 5 4 Example Host LUN Mappings The following example screens illustrate four channel IDs with eight LUNs per channel 5 6 Sun StorEdge 3000 Family RAID Firmware 3 25 User s Guide June 2003 lt Main Menu gt Quick installation LUN LV LD DRV Partition Size MB RAID view and
67. 2 3 Understanding Local Spare Drives 1 3 1 2 4 Understanding Global Spare Drives 1 4 1 2 5 SCSI Channels 1 4 1 3 RAID Levels 1 7 1 3 1 JBOD Single Drive Control 1 10 1 3 2 RAIDO 1 10 1 3 3 RAID1 1 11 1 3 4 RAID 1 0 1 12 1 3 5 RAID3 1 13 1 3 6 RAID5 1 14 1 3 7 Advanced RAID Levels 1 15 iv 1 4 1 5 1 6 1 7 1 8 Local and Global Spare Drives 1 16 1 4 1 Local Spare Drives 1 16 1 4 2 Global Spare Drives 1 17 1 4 3 Using Both Local and Global Spare Drives 1 18 Controller Defaults and Limitations 1 19 Battery Operation 1 20 1 6 1 Battery Status 1 20 1 6 2 Write Back Versus Write Through Cache Options 1 20 RAID Planning Considerations 1 20 Basic Configuration Overview 1 22 2 Accessing the Controller Firmware 2 1 2 1 2 2 2 3 2 4 2 5 2 6 2 7 2 8 Setting Up the Serial Port Connection 2 1 Accessing the Firmware Application From a Solaris Host 2 2 Redefining the Baud Rate for the tip Command 2 3 Using the tip Command for Local Access to the Array 2 3 The Controller Firmware Initial Screens 2 4 Main Menu 2 5 Quick Installation Reserved 2 5 Upgrading Firmware 2 6 3 Viewing and Editing Logical Drives 3 1 3 1 3 2 3 3 3 4 3 5 3 6 3 7 Introducing the Logical Drive Commands 3 1 Default Logical Drives and RAID Levels 3 2 Viewing the Logical Drive Status Table 3 3 Creating Logical Drive s 3 4 Changing a Logical Drive Controller Assignment 3 10 Partitioning a Logical Drive 3 11 Deleting a Log
68. 28 LUNs refer to Mapping Logical Drive Partitions to Host LUNs on page 5 1 Chapter 3 Viewing and Editing Logical Drives 3 11 3 12 Caution If you modify the size of a partition or logical drive you lose all data on those drives Partition0 2GB Partition 1GB an aeeee RAID 5 8GB Logical Drive 0 ey Partition 2 5GB a Partition 0 2 568 MADIS pre a Partition 1 1 5GB Logical Drive 1 Partition 2 2GB FIGURE 3 2 Partitions in Logical Configurations Sun StorEdge 3000 Family RAID Firmware 3 25 User s Guide June 2003 To partition a logical drive perform the following steps 1 From the Main Menu select view and edit Logical drives 2 Select the logical drive you want to partition and press Return 3 Par Ee IC O B6iESABI i Se A O E U SL NA RAIDS 3000 GOOD S 3 5 6 a aed an Senn SS pf owe PT ccecce Bc 3 Select Partition logical drive from the menu and press Return Beene a ee SaaS iy Se Se P B61E5AB NA GooD s 3 5 al View scsi drives Delete logical drive Partition logical drive ecucceeccHo logical drive Name logical drive Assignments Expand logical drive add Scsi drives reGenerate parity cOpy and replace drive 4 Select from the list of undefined partitions and press Return The following message is displayed Partitioning the Logical Drive wil
69. 6 Sun StorEdge 3000 Family RAID Firmware 3 25 User s Guide June 2003 connecting to 2 2 S SAF TE enclosure monitoring 8 23 saving configuration to disk 10 8 SB MISS drive status 6 3 Scan SCSI drive command 6 7 scanning new SCSI drive 6 6 scanning a new SCSI drive 6 6 SCSI channel explained 8 29 setting termination 7 12 status 7 1 terminator 7 12 drive side parameters 8 19 I O timeout 8 21 ID deleting 7 10 explained 8 29 motor spin up 8 19 reset at power up 8 20 target drive channel viewing and editing 7 15 transfer clock speed setting 7 13 SCSI channel commands 7 4 SCSI channel defined 8 29 SCSI drive adding to logical drive 3 21 disk capacity 6 5 fibre port name 6 5 global or local spare 6 3 identifying a drive diagnosing system errors 6 11 low level format 6 27 read write test 6 28 redundant loop ID 6 5 revision number 6 5 scanning new 6 6 serial number 6 5 slot number deleting 6 9 STANDBY mode 6 3 table adding entries 6 9 clear drive status 6 9 deleting drive entries 6 9 removing empty drive entry 6 10 setting slot numbers 6 8 USED DRV mode 6 3 utilities 6 26 vendor ID 6 3 viewing information 6 5 scsi Drive Low Level Format command 6 27 SCSI host IDs creating 7 8 SCSI ID defined 8 29 SCSI Motor Spin Up command 8 19 SCSI Reset at Power Up command 8 20 SCSI target drive channel maximum tag count 7 19 parity check 7 18 slot number 7 16 scsi Termina
70. 8 14 Sun StorEdge 3000 Family RAID Firmware 3 25 User s Guide June 2003 8 9 2 Note The controller s name and password jointly share a 16 character alphanumeric field If you set up a password check that both the controller name and any password can fit within the 16 character field lt Main Menu gt Quick installation view and edit Logical drives view and edit logical Volumes view and edit Host luns view and edit scsi Drives view and edit Scsi channels and edit Configuration parameters Controller Name Ne et LCD Title Display Controller Logo Password Validation Timeout Always Check Drive side SCSI Parameters Controller Unique Identifier Not Defined Disk Array Parameters SDRAM ECC Disabled Redundant Controller Parameters New Controller Name Controller Parameters FIGURE 8 3 Controller Name Communication Parameters Caching Parameters Host side SCSI Parameters 1 Select view and edit Configuration parameters select Controller Parameters and then press Return 2 From the Controller Parameters menu select Controller Name and then press Return lt Main Menu gt Quick installation view and edit Logical drives view and edit logical Volumes view and edit Host luns view and edit scsi Drives view and edit Scsi channels view and edit Configuration parameters ontroller Name Not Set
71. 9 8 10 2 SCSI Reset at Power Up Reserved 8 20 8 10 3 Disk Access Delay Time 8 21 8 10 4 SCSII O Timeout 8 21 8 10 5 Maximum Tag Count Tag Command Queuing 8 22 8 10 6 SAF TE and SES Enclosure Monitoring 8 23 8 10 7 Periodic Drive Check Time 8 24 8 10 8 Auto Detect Failure Drive Swap Check Time 8 24 8 11 Disk Array Parameters 8 25 8 11 1 Rebuild Priority 8 26 8 11 2 Verification on Writes 8 27 8 12 Host side SCSI Parameters 8 28 8 12 1 Overview of SCSI Channel SCSI ID and LUNs 8 29 8 12 2 Maximum Concurrent Host LUN Connections 8 29 viii Sun StorEdge 3000 Family RAID Firmware 3 25 User s Guide June 2003 10 8 13 8 14 8 15 8 12 3 Number of Tags Reserved for Each Host LUN Connection 8 30 8 12 4 Maximum Queued I O Count 8 31 8 12 5 LUNs Per Host SCSIID 8 32 8 12 6 Cylinder Head Sector Mapping 8 32 Redundant Controller Parameters Menu Reserved 8 34 Peripheral Device Type Parameters 8 35 Setting anIP Address 8 36 Viewing and Editing Peripheral Devices 9 1 9 1 9 2 9 3 9 4 9 5 Viewing Peripheral Device Controller Status 9 2 Viewing Peripheral Device SAF TE Status 9 2 Setting Peripheral Device Entry 9 5 9 3 1 Redundant Controller Mode Do Not Change 9 5 9 3 2 Enable UPS Status 9 6 Setting the UPS Power Fail Signal 9 7 Viewing the Controller Voltage and Temperature Status Window 9 8 System Functions Info and Event Logs 10 1 10 1 10 2 10 3 10 4 10 5 10 6 10 7 10 8 System Functions 10 1 Mut
72. A logical volume can be divided into a maximum of 32 partitions for SCSI arrays and 128 partitions for Fibre Channel arrays The preferred function is the creation of partitions into logical drives You may configure up to 32 partitions for each logical drive and up to 128 partitions total within an array During normal operation the host sees an unpartitioned logical volume or a partition of a partitioned logical volume as one single physical drive Note Logical drives with many more partitions serve the same purpose m Spare drives in a logical volume 4 2 Sun StorEdge 3000 Family RAID Firmware 3 25 User s Guide June 2003 A local spare cannot be assigned to a logical volume If a drive fails it fails as a member of a logical drive therefore the controller allows local spare assignment to logical drives rather than logical volumes a Logical volume limitations The logical volume cannot have any logical drive with a status of fatal failed If there is a failed drive in any of the member logical drives of a logical volume the controller will start to rebuild that logical drive If any of the member logical drives fails fatally the logical volume fails fatally and data will not be accessible To avoid a logical volume failure Logical drives as members to a logical volume should be configured in RAID levels that provide redundancy namely RAID level 1 1 0 3 or 5 a Rebuild the logical drive as soon as pos
73. CSI I O Timeout Default 15 seconds and then press Return A list of selections is displayed Move the cursor bar on a selection and press Return Select Yes in the dialog box that follows to confirm the setting Maximum Tag Count Tag Command Queuing CSI Motor Spin Up Disabled CSI Reset at Power Up Disabled isk Access Delay Time 60 seconds SCSI 170 Timeout 18 seconds Periodic Drive ec ime seconds Periodic SAF TE and SES Device Check Time 5S_seco Periodic Auto Detect Failure Drive Swap Check Time Drive Predictable Failure Mode SMART Detect Only Fibre Channel Dual Loop Enabled Drive side Parameters Disk Array Parameters Redundant Controller Parameters Controller Parameters This is the maximum number of tags that can be sent to each drive at the same time A drive has a built in cache that is used to sort all of the I O requests tags that are sent to the drive allowing the drive to finish the requests faster The cache size and maximum number of tags varies between brands and models of drive Using the default setting of 32 is highly recommended 8 22 Sun StorEdge 3000 Family RAID Firmware 3 25 User s Guide June 2003 8 10 6 Note Changing the maximum tag count to Disable will cause the Write Back cache in the hard drive to not be used The controller supports tag command queuing with an adjustable tag count from 1 to 128 The default setting is Enabled with a maxim
74. Clock esata maximum sync W Enabled Def 32 D Set SCSI Target Maximum Xfer Wide Supported 2 R cE No Enabled Def 32 Select Yes in the dialog box to confirm the setting and press Return Chapter 7 Viewing and Editing SCSI Channels 7 17 7 10 4 7 10 5 Parity Check The integrity of redundant data on fault tolerant arrays RAID 1 3 5 and 6 or 1 0 is verified with a parity check The parity checking procedure on a logical drive recalculates the parity of data stripes in each of the logical drive s RAID stripe sets and compares it with the stored parity If a discrepancy is found an error will be reported and the new correct parity will be substituted for the stored parity You can enable or disable parity checking From the Main Menu select view and edit Scsi channels and press Return Select Parity check and press Return A confirmation message is displayed apeje Onl 10 eree ea Par ieyOnk raf o_o a Enabled _ Enabled Def 22 Slot b Enabled bled Def 32 E xfer Clock a Wid maximum xfer Width Enabled Def 32 z row Enabled Def 32 Enable Parity Checking row Enabled Def 32 ives No de Enabled Def 32 row C Latet sf irae tnabiea tnabiea vero 3 Select Yes in the dialog box that follows to confirm the setting Disconnecting Support 1 From the Main Menu select view and edit Scsi channels and press Return 2 Select Disconnect
75. Completed Co SCSI Drive Events SCSI Drive Event messages include C 2 Sun StorEdge 3000 Family RAID Firmware 3 25 User s Guide June 2003 G21 C22 Warnings 1101 CHL _ ID _ SCSI Target ALERT Unexpected Select Timeout 1102 CHL _ ID _ SCSI Target ALERT Gross Phase Signal Error Detected 1103 CHL _ ID _ SCSI Target ALERT Unexpected Disconnect Encountered 1104 CHL _ ID _ SCSI Drive ALERT Negotiation Error Detected 1105 CHL _ ID _ SCSI Target ALERT Timeout Waiting for I O to Complete 1106 CHL _ ID _ SCSI Target ALERT SCSI Parity CRC Error Detected 1107 CHL _ ID _ SCSI Drive ALERT Data Overrun Underrun Detected 1108 CHL _ ID _ SCSI Target ALERT Invalid Status Sense Data Received _ 110f CHL _ LIP _ _ Detected 110f CHL _ SCSI Drive Channel Notification SCSI Bus Reset Issued 110f CHL _ SCSI Drive Channel ALERT SCSI Bus Reset Issued 1111 CHL _ ID _ SCSI Target ALERT Unexpected Drive Not Ready 1112 CHL _ ID _ SCSI Drive ALERT Drive HW Error _ 1113 CHL _ ID _ SCSI Drive ALERT Bad Block Encountered _ _ 1114 CHL _ ID _ SCSI Target ALERT Unit Attention Received 1115 CHL _ ID _ SCSI Drive ALERT Unexpected Sense Received _ 1116 CHL _ ID _ SCSI Drive ALERT Block Reassignment Failed _ _ 1117 CHL _ ID _ SCSI Drive ALERT Block Successfully Reassigned _ _ 1118 CHL _ ID _ SCSI Drive ALERT Aborted Command _ 1142 SMART CH _ ID _ Predictable Failure Detected TEST 1
76. D levels refer to RAID Levels on page 1 7 and Local and Global Spare Drives on page 1 16 3 3 Viewing the Logical Drive Status Table To check and configure logical drives from the Main Menu select view and edit Logical drives and press Return The following screen displays the status of all logical drives a LG ID LV RAID Size MB Status O LN SB FL NAHE YI v PO 64312D6F NAIRAIDO 208482 GOOD S 6 oF Y v S1 76605A49 NA RAIDO 208482 coopis 6 o y v 2 NONE y s 3 NONE TABLE 3 1 Parameters Displayed in the Logical Drive Status Window Parameter Description LG Logical drive number PO Logical drive 0 of the primary controller where P primary controller and 0 logical drive number S1 Logical drive 1 of the secondary controller where s secondary controller and 1 logical drive number ID Logical drive ID number controller generated LV The logical volume to which this logical drive belongs NA indicated no logical volume RAID RAID level SIZE MB Capacity of the logical drive in megabytes Status Logical drive status INITING The logical drive is now initializing Chapter 3 Viewing and Editing Logical Drives 3 3 TABLE 3 1 Parameters Displayed in the Logical Drive Status Window Continued Parameter Description INVALID The logical drive was improperly created or modified For example the logical drive was c
77. DS 7 LD 3 7 350 RAIDS Chapter 5 Viewing and Editing Host LUNs 5 7 lt Main Menu gt Quick installation LUN LV LD DRV Partition Size MB RAID view and edit Logical drives view and edit logical Volumes MOE view and edit Host _luns v 1 LD 2 1 400 RAIDS v CHL 1 ID 0 Primary Controll v CHL 1 ID 1 Secondary Contro 2 LD 2 2 400 RAIDS v CHL 3 ID 2 Secondary Contro s MEA 3 LD 2 3 400 RAIDS v Edit Host ID WWN Name List v 4 LD 2 4 400 RAIDS 5 LD 2 5 400 RAIDS 6 LD 2 6 400 RAIDS 7 LD 2 7 400 RAIDS 5 5 Deleting a Host LUN Mapping 5 8 To delete a host LUN mapping perform the following steps 1 On the Main Menu select view and edit Host luns 2 Highlight the channel and ID that are mapped to the host LUN and press Return 3 Highlight the specific host LUN and press Return 4 Select Yes to delete the host LUN This option deletes the logical drive or logical volume mapping to the host channel This option will not delete the data contained within the logical drive Note All host LUN mappings are removed when there is any partition change Sun StorEdge 3000 Family RAID Firmware 3 25 User s Guide June 2003 CHAPTER 6 Viewing and Editing SCSI Drives This chapter explains how to view and edit physical drive parameters Topics covered include SCSI Drive Status Tabl
78. DefWid Term CurSynC1k CurWid 80 MHz 80 OMHz 80 OMHz L 80 MHz i L 80 OMHz L L 80 OHHz Note The Mode column for at least one channel must include the RCC or RCCOM abbreviation for redundant controller communications 2 Highlight the channel that you want to modify and press Return 3 Use the arrow key to select Yes if you want to change the host or drive assignment lt Main Menu gt Quick snsielicticn view and edit Logical drives view and edit logical Volumes view and edit Host luns view and edit scsi Drives view and edit Scsi channels T T A efWid channel Hode P S Change Mode to Host Channel s s Yes No View and edit scsi target parity check Enabled view chip information Term CurSynC1k CurWid On 80 MHz 80 OMHZz L L On 80 0 Hz L L 7 6 Sun StorEdge 3000 Family RAID Firmware 3 25 User s Guide June 2003 Caution The channels of redundant controllers must be the same For example if the primary controller uses channel 2 to connect to a group of drives the secondary controller must also use channel 2 to connect to the same group of drives Changes to the primary controller are automatically be made to the secondary controller 7 3 Permanent SCSI Drive Channel IDs Each array must be configured as a single
79. Editing Drive Channel SCSI Targets Follow these steps to view or edit the SCSI targets for a selected drive channel 1 From the Main Menu select view and edit Scsi channels and press Return 2 Highlight the drive channel and press Return 3 Select View and edit scsi target and press Return Chapter 7 Viewing and Editing SCSI Channels 7 15 7 10 1 Main Menu gt Quick Gasbatiarion view and edit Logical drives channel Mode rimary controller scsi id Secondary controller scsi id scsi Terminator syne transfer Clock efWid Term CurSynClk CurWid Wide transfer S Term Curkidl Parity check Enabled view chip inFormation is orive 7 Naf soram miae JL On Asvme Norron A list of all the SCSI targets and their current settings is displayed 4 Press Return on a SCSI target to display an editable parameter menu on the screen Geter TO retin rc Patty view view Enabled n able Ti Der GA view view 5 Enabled Def 32 maximum sync xfer oc v maximum xfer Width Enabled Def 32 vi Ch Parity check s Disconnect support Enabled Def 32 vi C maximum Tag coun v i Restore to erate setting Enabled Def 32 Enabled Enabled Def 32 ia a al iof nise enebieal enabiea Der a2 2 3 ej wide enabled Enabled Def 2 Note Alter the SCSI target settings only when adjustments need to be made to specific devices on a drive channel You can change the SCS
80. Ee Expand Logical Drive a m ra EEE E a A notification message informs you when the process is complete 2188 Expansion of Logical Drive 0 Completed 5 Press Esc to return to the previous menu screen The total capacity of logical drive has been expanded to 6 Gigabytes L 10 LV o eo eaa o an pe e i o ee lt cuccece lt lt Mo Chapter 3 Viewing and Editing Logical Drives 3 29 3 30 Sun StorEdge 3000 Family RAID Firmware 3 25 User s Guide June 2003 CHAPTER 4 Viewing and Editing Logical Volumes Topics covered in this chapter include Understanding Logical Volumes Multilevel RAID on page 4 2 Creating a Logical Volume on page 4 5 Expanding a Logical Volume on page 4 7 Viewing a Logical Volume Status Table on page 4 7 4 1 4 1 Understanding Logical Volumes Multilevel RAID aga a peA H Logical Y Q A Volume AR Physical Drives LY aaa aaa Physical Drives FIGURE 4 1 Logical Volume Composed of Multiple Drives A logical volume is a combination of RAID 0 Striping and other RAID levels Data written to a logical volume is first broken into smaller data segments and striped across different logical drives in a logical volume Each logical drive then distributes data segments to its member drives according to its mirroring parity or striping scheme
81. Host LUNs The view and edit Host luns command allows you to map logical groups or logical volumes to the desired host channels Each LG or LV may be mapped more than once to achieve a redundant data path additional software is required Topics covered in this chapter include Mapping Logical Drive Partitions to Host LUNs on page 5 1 SCSI ID LUNs on page 5 2 Planning for 128 LUNs on page 5 5 Example Host LUN Mappings on page 5 6 Deleting a Host LUN Mapping on page 5 8 spil Mapping Logical Drive Partitions to Host LUNs A logical unit number LUN is a unique identifier used on a SCSI channel that enables a host to differentiate between separate devices Once you have created logical drives or logical volumes you can map each storage partition as one system drive host ID LUN The host adapter recognizes the system drives after reinitializing the host bus Note The UNIX format and Solaris probe scsi all commands will not display all mapped LUNs if there is not a logical drive mapped to LUN 0 A SCSI channel SCSI bus can connect up to 15 devices excluding the controller itself when the Wide function is enabled 16 bit SCSI Each device has one unique ID 5 1 The following figure illustrates the idea of mapping a system drive to a host ID LUN combination m The SCSI ID is like a cabinet and the drawers are the LUNs LUN is short for logical unit number m Each cabin
82. I parameters for specific drives when mixing different drives or connecting other SCSI device like a CD ROM on a drive channel Note Neither mixing drives nor connecting a CD ROM is recommended for the controller Providing a Slot Number 1 From the Main Menu select view and edit Scsi channels and press Return 2 Select Slot number and press Return 3 Type a slot number and press Return 7 16 Sun StorEdge 3000 Family RAID Firmware 3 25 User s Guide June 2003 7 10 2 7 10 3 Maximum Synchronous Transfer Clock 1 From the Main Menu select view and edit Scsi channels and press Return 2 Select maximum sync xfer Clock and press Return An input screen is displayed auc toes Syeot ere Fr eyo Ove connect Tao Vieu view view Slot number Enabled Def 32 maximum Sync x Synchronous Transfer Period Factor Maximum Syne Xfer Clock 9__ PTs sh niae Enisa Enaid oer C af ef oj wide Enabled enabled Def 2 3 Type the clock transfer period factor and press Return Maximum Transfer Width 1 From the Main Menu select view and edit Scsi channels and press Return 2 Select maximum xfer Width and press Return A confirmation message is displayed Qyse Stet Ont 10 Sractlk k rHig ParityGhk Disconnect Tastount al afol o tiae navies ernie Sera C Enabled bled Slot b Enabled Def 32 ximum Syn xfer
83. Logical volume with RAID 5 logical drives 4 2 Creating a Logical Volume A logical volume consists of one or several logical drives To create a logical volume preform the following steps 1 Select view and edit logical Volumes in the Main Menu The current logical volume configuration and status will be displayed on the screen parameters vices ecuccec H 2 Select a logical volume number 0 7 that has not yet been defined and press Return to proceed A prompt Create Logical Volume is displayed 3 Select Yes and press Return Chapter 4 Viewing and Editing Logical Volumes 4 5 im Pts 10 Lv RATD SizecN Status fojan s p e ia Sees OT a ie lt lt uc lt lt lt lt E lt oO 4 Select one or more logical drive s available on the list and press Return to tag the logical drive s to be included in the volume An asterisk is displayed on the selected drive Press Return to deselect a logical drive p pe a eS A 1 ogical Volume Assignments 2 Redundant Controller Logical Volume Assign to Secondary Controller 3 Yes No Logical volumes can also be assigned to different controllers primary or secondary The default is primary Press ESC if change is not preferred 5 As all the member logical drives are selected press ESC to continue Logical Drive Count Logical Volume Assignment Primary Controller Create Log
84. New Controller Name Depending on the controller s current settings you will be prompted to either enter a new name or modify the existing name for the designated controller ecuc 3 Enter a name for the controller and confirm by pressing the Enter key LCD Title Display Controller Logo Not Applicable This function is not applicable to this product Chapter 8 Viewing and Editing Configuration Parameters 8 15 8 9 3 Password Validation Timeout This function sets a timeout when a password is required to be entered If a single password is set the operator must enter this case sensitive alphanumeric password each time the controller is reset causing an initial display of the Terminal Interface screen In most cases the default value Always Check should be left unchanged Although this function allows you to set the timeout setting it does not provide a means of counting retries In other words the user may continue to retry entering a password until the preset timeout expires unless the default Always Check value is selected The other options available are Disable or setting a value for 1 2 or 5 minutes Leaving this setting at Always Check means that there is no defined timeout and the operator has unlimited opportunities to enter the correct password but each try is validated before access to the firmware s functions is permitted If this function is disabled any entry will pro
85. Parameters 8 31 8 12 5 8 12 6 3 Select an item and press Return Select Yes in the dialog box that follows to confirm the setting LUNs Per Host SCSI ID lt Main Menu gt Quick installation view view Maximum Queued I O Count 256 view UN D H D 8 view ax Number_o oncurrent Host onnection De view Number of Tags Reserved for each Host LUN Connectio Peripheral Device Tzpe Parameters Host Cylinder Head Sector Mapping Configuration Fibre Connection Option Loop only Host s ide Parameters Drive side Parameters Disk Array Parameters Redundant Controller Parameters Controller Parameters This function is used to change the number of LUNs per host SCSI ID The default setting is 32 LUNs with a predefined range of 1 to 32 LUNs per logical drive available A maximum of 128 LUNs per array is allowed From the Main Menu select view and edit Configuration parameters select Host side SCSI Parameters and then press Return Select LUNs per Host SCSI ID and then press Return A list of selections is displayed Select an item and press Return Select Yes to confirm the setting Cylinder Head Sector Mapping In SCSI arrays the drive capacity is decided by the number of blocks Some operating environments read the capacity of the array based on the cylinder head sector count of the drives For Sun Solaris the cylinder cannot exceed 65535 so you can choose lt
86. SCSI drives command 3 23 adding drive entry 6 10 global spare drive 6 5 host channel SCSI ID 7 8 local spare drive 6 4 SCSI drives 3 23 automatic rebuild 8 7 definition Glossary 3 B background rate definition Glossary 3 BAD drive status 6 3 battery support 1 20 baud rate 2 3 beeper muting 10 2 Before You Begin 1 2 bus configurations 7 7 C cabling single and dual bus configurations 7 7 cache parameters 8 3 cache status 2 4 caching parameters parameters caching 8 2 Caching Parameters command 8 6 check time periodic auto detection of failed drive swap 8 24 Clear drive status command 6 9 clone failing drive 6 15 perpetual clone 6 18 concurrent rebuild 8 11 configuration minimum requirements 1 22 saving to disk 10 8 controller defaults 1 19 muting beeper 10 2 name 8 14 naming 8 14 8 15 8 16 optimization mode 1 21 parameters B 2 name 8 14 password validation timeout 8 16 Index 1 SDRAM ECC 8 18 unique identifier 8 17 resetting 10 5 shutting down 10 6 voltage and temperature checking 9 8 controller assignment 3 10 controller failure 8 7 controller IDs 7 8 controller NAME 3 11 Controller Name command 8 15 Controller Parameters command 8 15 copy and replace logical drive 3 24 copy and replace drive command 3 25 create logical drive 3 6 creating logical volume 4 5 cylinder head sector mapping 8 32 D defaults controller 1 19 drive swa
87. Supported Capacity Redundancy 0 Striping 2 36 physical drives N No 1 Mirroring 2 physical drives N 2 Yes 1 0 Mirroring and 4 36 physical drives N 2 Yes striping even number only 3 Striping with 3 31 physical drives N 1 Yes dedicated parity Chapter 1 Basic RAID Concepts and Planning 1 7 1 8 TABLE 1 1 RAID Level Overview Continued Number of Drives RAID Level Description Supported Capacity Redundancy 5 Striping with 3 31 physical drives N 1 Yes distributed parity 3 0 30 Striping of RAID3 2 8 logical drives N of Yes logical drives logical drives 5 0 50 Striping of RAID5 2 8 logical drives N of Yes logical drives logical drives Capacity refers to the total number N of physical drives available for data storage For example if the capacity is N 1 and the total number of disk drives in the logical drive is six 36 Mbyte drives the disk space available for storage is equal to five disk drives 5 x 36 MBytes or 180 Mbytes The 1 refers to the amount of striping across the example six drives which provides redundancy of data and is equal to the size of one of the disk drives For RAID 3 0 30 and 5 0 50 capacity refers to the total number of physical drives N minus one physical drive for each logical drive in the volume For example if the total number of disk drives in the logical drive is twenty 36 Mbyte drives and the total number of logical drives is 2 the disk space available for storage is equal
88. The unwritten data in the cache memory can be committed to drive media when power is restored Supported Performs read after write during normal write processes to ensure data is properly written to drives Supported Performs read after write during rebuild write to ensure data is properly written to drives Supported Performs read after write during logical drive initialization to ensure data is properly written to drives Supported Default Disabled Users may choose to clone data from a failing drive to a backup drive manually Appendix A Firmware Specifications A 5 TABLE A 7 Security Feature Description Password Protection Supported User Configurable Password Validation Timeout Supported After a specific period of time without any user interaction the password will be requested again This prevents unauthorized operation when the user is away TABLE A 8 Environment Management Feature Description SAF TE and SES Support Supported SAF TE and SES Polling Period User configurable 50ms 100ms 200ms 500ms 1 60sec Feature Description SAF TE and SES Temperature Value Display On Board Controller Voltage Monitors On Board Controller Temperature Sensors Enclosure Monitoring of Redundant Power Supply Status Fan Status UPS Status and Temperature Status Supported Displays the temperature value provided by enclosure SAF TE module if available Supported Monitors th
89. UN Applicability The default setting is All Undefined LUNs Related to the other LUN functions LUN Applicability is primarily used when no logical drive has been created and mapped to a host LUN and the RAID controller is the only device connecting to the host SCSI card For such instances the operating environment will typically not load the driver of the host SCSI adapter If the driver is not loaded the in band SCSI utility cannot communicate to the RAID controller If LUN O s only is selected only LUN O of the host ID is displayed as a device with the user defined peripheral device type If All Undefined LUNs is selected each LUN in that host ID is displayed as a device with the user defined peripheral device type Chapter 8 Viewing and Editing Configuration Parameters 8 35 8 15 Setting an IP Address The controller Ethernet port offers out of band management through two programs m The Configuration Service program Refer to the Sun StorEdge 3310 SCSI Configuration Service User Guide for details a The firmware program when you use the telnet command to connect to the IP address of the controller to enter the firmware program To access the array using the Ethernet port you must set up an IP address for the controller To set the IP address netmask and gateway values of the RAID controller perform the following steps Access the array through the COM port on the controller module of the array
90. Validation Timeout can be set to Always Check Setting validation timeout to always check protects the controller configuration from any unauthorized change Note The controller password and controller name share a 16 character space The maximum characters for the controller password is 15 When the controller name occupies 15 characters there is only one character left for the controller password and vice versa To set or change the controller password move the cursor bar to Change Password and then press Return If a password has previously been set the controller will ask for the old password first If the password has not been set the controller will ask for the new password The password cannot be replaced unless a correct old password is provided Enter the old password and press Return If the password is incorrect it will not allow you to change the password Instead it will display the message Password incorrect then return to the previous menu If the password is correct or there is no preset password it will ask for the new password Disabling the Password To disable or delete the password press Return only in the password column that is used for entering a new password The existing password will be deleted No password checking will occur when entering the Main Menu from the Initial screen 10 4 Sun StorEdge 3000 Family RAID Firmware 3 25 User s Guide June 2003 1
91. You can create up to 32 partitions per logical drive with a total number of partitions not to exceed 128 partitions LUNs per the RAID array Note When you modify a partition or logical drive size you must reconfigure all host LUN mappings All the host LUN mappings are removed with any change to partition capacity See Mapping Logical Drive Partitions to Host LUNs on page 5 1 3 14 Sun StorEdge 3000 Family RAID Firmware 3 25 User s Guide June 2003 Note When a partition of logical drive logical volume is deleted the capacity of the deleted partition is added to the partition above the deleted partition IA Deleting a Logical Drive You can keep the default logical drive configuration or create new logical drives and different RAID levels with the following procedure To reconfigure the entire array with different logical drives and RAID levels you must delete the existing logical drive s and reconfigured the array prior to storing data on the array Note We highly recommend that you keep the default configuration which provides the maximum storage protection To delete a logical drive perform the following steps On the Main Menu select view and edit Logical drives Highlight the line with the logical drive and press Return Select Delete logical drive and press Return Caution Deleting a logical drive will destroy data Select Yes when prompted to confirm
92. able Failure Mode SMART from the Drive side SCSI Parameters menu 6 24 Sun StorEdge 3000 Family RAID Firmware 3 25 User s Guide June 2003 6 11 8 3 Select Detect and Perpetual Clone from the Drive Predictable Failure Mode SMART menu Assign at least one spare drive to the logical drive either a local spare or global spare When a drive logical drive member detects a predictable drive failure the controller clones the drive to a spare drive To see the status of the source drive or the cloning progress or to cancel the cloning process from the View and Edit SCSI Drive menu click on the spare drive either local or global and choose the appropriate menu option Stet onl T0 SizeC Seeea GOR Staton Vendor and Product 10 e afa ef wime mice 2 _1 31 ore of ovum iY 2 2f 319 zene ef on time j Vv RRT a s View clone progress 3 Abort clone Note With the precaution of untimely drive failure of yet another drive when configured as perpetual clone the spare drive stays mirrored to the source drive the drive whose failure has been but does not replace it until the source drive fails When the spare drive is mirroring the source drive any occurrence of drive failure when there is no other spare drives forces the spare drive to give up the mirrored data and resume its original role becoming a spare drive and rebuil
93. and edit Logical drives from the Main Menu and press Return Select the logical drive that has a failed member drive and press Return Select Rebuild logical drive and press Return When prompted to rebuild the logical drive select Yes Rebuilding 14 Completed The rebuilding progress is displayed on the screen When rebuilding has already started or the logical drive has been automatically rebuilt by a local spare drive or global spare drive choose Rebuild progress to view the rebuilding progress Note The rebuild function is displayed only when a logical drive with RAID level 1 3 or 5 has a failed drive member RAID 0 configurations provide no data redundancy 3 18 Sun StorEdge 3000 Family RAID Firmware 3 25 User s Guide June 2003 3 11 Performing a Logical Drive Parity Check RAID 3 and RAID 5 configurations support parity checking If no verifying method is applied to data writes in these configurations you can periodically use the reGenerate parity menu option to perform a parity check for RAID levels that support parity In a RAID unit data is striped across multiple member drives and this menu option can regenerate parity and report any discrepancy To check logical drive parity perform the following steps Select view and edit Logical drives from the Main Menu and press Return Select the logical drive that you want to regenerate the parity for and press R
94. ange the setting select the UPS Power Fail Signal function and press Return 4 A prompt will be displayed Select Yes to change the setting Chapter 9 Viewing and Editing Peripheral Devices 9 7 9 5 9 8 leew _ lt Main Menu gt Quick installation view and edit Logical drives view and edit logical Volumes view and edit Host luns view and edit scsi Drives view and edit Scsi channels view and edit Configuration parameters view and edit Peripheral devices Viewing the Controller Voltage and Temperature Status Window To check the status of controller voltage and temperature perform the following steps 1 From the Main Menu select view and edit Peripheral devices and press Return View Peripheral Device Status Set Peripheral Device Entry Define Peripheral Device Active Signal Adjust LCD Contrast Controller Peripheral Device Configuration Quick installation lt Main Menu gt view and edit Logical drives view and edit logical Volumes view and edit Host luns 2 Select Controller Peripheral Device Configuration and press Return 3 Select View Peripheral Device Status and press Return to view voltage and temperature status of the RAID unit view an view an ITEM VALUE STATUS view an 3 3V 3 384 Operation Normally s OV 9 126 Operation Normally v sior 12V 12 199 Operation Normally v Set Defi CPU T
95. annels view and edit Configuration parameters view and edit ea devices v v Mute beeper change Password Reset controller Shutdown controller Controller maintenance 2 Select a menu option from the system Functions menu and press Return 10 2 Muting the Beeper To change the beeper setting perform the following steps 1 Select system Functions in the Main Menu and press Return lt Main Menu gt Quick installation view and edit Logical drives view and edit logical Volumes view and edit Host luns view and edit scsi Drives view and edit Scsi channels view and edit Configuration parameters view and edit a devices v v Mute beeper change Password Reset controller Shutdown controller Controller maintenance 2 When the controller s beeper has been activated choose Mute beeper and then press Return 10 2 Sun StorEdge 3000 Family RAID Firmware 3 25 User s Guide June 2003 lt Main Menu gt Quick installation view and edit Logical drives view and edit logical Volumes view and edit Host luns view and edit scsi Drives view and edit Scsi channels view and edit Configuration parameters view and edit aa devices V v r c p Mute Beeper C Yes No 3 Select Yes and press Return in the next dialog box to turn the beeper off temporarily for the current event The beeper will sti
96. artitioned logical volume as one single physical drive Understanding Local Spare Drives A local spare drive is a standby drive assigned to serve one specified logical drive When a member drive of this specified logical drive fails the local spare drive becomes a member drive and automatically starts to rebuild Chapter 1 Basic RAID Concepts and Planning 1 3 1 2 4 1 2 5 Drive channel 0 Drive channel 1 Understanding Global Spare Drives A global spare drive is not reserved for a single logical drive When a member drive from any of the logical drives fail the global spare drive joins that logical drive and automatically starts to rebuild SCSI Channels A SCSI channel can connect up to 15 devices excluding the controller itself when the Wide function is enabled 16 bit SCSI Fibre Channel enables the connectivity of up to 125 devices in a loop Each device has one unique ID A logical drive consists of a group of SCSI or Fibre Channel drives Physical drives in one logical drive do not have to come from the same SCSI channel Also each logical drive can be configured for a different RAID level A drive can be assigned as the local spare drive to one specified logical drive or as a global spare drive A spare is not available for logical drives that have no data redundancy RAID 0 ID6 ID1 ID14 Global spare ive pepe ees ie aes I Local spare f
97. ash Selected drive or flash all But selected drive and perform the same procedure lt Main Menu gt Quick installation view and edit Logical drives view and edit logical Volumes view and edit Host luns ew and edit scsi Drives View drive information add Local spare drive add Global spare drive Delete globa ats Vendor nd Product I 2 ID 16 SCSI Driv set slot Nur BREE MS pee add drive E Clear drive Identifying clone Failing drive sesi drive Utilities FIGURE 6 6 Flash Selected Drive Function 6 12 Sun StorEdge 3000 Family RAID Firmware 3 25 User s Guide June 2003 6 10 1 Flashing Selected SCSI Drive The read write LED of the drive you select lights steadily for a configurable period of time from 1 to 999 seconds Flashing the Drive LED of a Selected Drive Chapter 6 Viewing and Editing SCSI Drives 6 13 6 10 2 Flashing All SCSI Drives The Flash All SCSI Drives function lights LEDs of all good drives except the defective one AIO O Flashing All Drive LEDs to Detect a Defective Non Flashing Drive 6 10 3 Flashing All But Selected Drives With this menu option except for the selected drive the read write LEDs of all connected drives will light for a configurable period of time from 1 to 999 seconds 6 14 S
98. assword Reset controller Shutdown controller Controller maintenance 2 To reset the controller without powering off the array select Reset Controller and then press Return Chapter 10 System Functions Info and Event Logs 10 5 lt Main Menu gt Quick installation view and edit Logical drives view and edit logical Volumes view and edit Host luns view and edit scsi Drives view and edit Scsi channels view and edit Configuration parameters view and edit a devices V Mute beeper change Password C Reset Controller Yes No 3 Select Yes in the dialog box that follows and press Return The controller will now reset as well as power off or re power on Caution Resetting the controller does not preserve the contents of the cache or write them to disk When the controller is reset all cache contents are lost Note Resetting the controller can result in occasional host side error messages such as parity error and synchronous error messages No action is required and the condition corrects itself as soon as reinitialization of the controller is complete 10 5 Shutting Down the Controller The Shutdown Controller menu option first halts all I O activity and so it should be used when all I O activity from hosts has already been quiesced The Shutdown Controller menu option then writes the contents of the cache to the drives Note
99. ater value will cause the controller to keep waiting for a drive and it may sometimes cause a host timeout When the drive detects a media error while reading from the drive platter it will retry the previous reading or recalibrate the head When the drive encounters a bad block on the media it reassigns the bad block to another spare block However all of this takes time The time to perform these operations can vary between brands and models of drives Chapter 8 Viewing and Editing Configuration Parameters 8 21 8 10 5 During SCSI bus arbitration a device with higher priority can utilize the bus first A device with lower priority sometimes receives a SCSI I O timeout when devices of higher priority devices keep utilizing the bus SCSI Motor Spin Up Disabled SCSI Reset at Power Up Disabled Disk Access Delay Time 60 seconds Escol 170 Timeout 10 seconds 8 Maximum Tag Count Periodic Drive Check Time 10 seconds Periodic SAF TE and SES Device Check Time 5S seco Periodic Auto Detect Failure Drive Swap Check Time Drive Predictable Failure Mode SMART Detect Only Fibre Channel Dual Loop Enabled Drive side Parameters Dis Array Parameters Redundant Controller Parameters Controller Parameters 1 Select view and edit Configuration parameters on the Main Menu 2 Select Drive side SCSI Parameters and then press Return The Drive side SCSI Parameters menu is displayed Select S
100. ation s progress and the identity of the target drive 1 Select view and edit Logical drives from the Main Menu and press Return The status of all logical drives is displayed in a table LG Size MB Status v ROE v v 1 76605A49 RAIDO 208482 v y NONE V s NONE 2 Select the logical drive where the cloning drive operation is in progress 3 Select View scsi Drives to see both the drive that is being cloned and the drive it is being cloned to 4 For more information select copy and replace drive to display the drives included in the logical drive 5 Select the drive that is identified as copying and press Return to see a menu whose options enable you to identify the source drive display the progress of the cloning operation and abort the cloning operation Note If you are viewing an active monitoring session with Sun StorEdge Configuration Services software the progress of the cloning operation is displayed by the Controller Array Progress bar 6 20 Sun StorEdge 3000 Family RAID Firmware 3 25 User s Guide June 2003 6 11 3 6 11 4 Understanding SMART Technology SMART is an industry standard technology that provides near term failure prediction for disk drives When SMART is enabled the drive monitors predetermined drive attributes that are susceptible to degradation over time If a failure is likely to occur SMART makes a status
101. ble or disable the function Follow the same procedure to enable or disable each method 8 12 Host side SCSI Parameters Select the view and edit Configuration parameters command select Host side SCSI Parameters and press Return to access the following parameters Maximum Queued I O Count LUNs per Host SCSI ID Max Number of Concurrent Host LUN Connection Def 4 Number of Tags Reserved for each Host LUN Connection Peripheral Device Type Parameters Host Cylinder Head Sector Mapping Configuration 8 28 Sun StorEdge 3000 Family RAID Firmware 3 25 User s Guide June 2003 8 12 1 8 12 2 Overview of SCSI Channel SCSI ID and LUNs A SCSI channel SCSI bus can connect up to 15 devices not including the SCSI controller itself when the Wide function is enabled 16 bit SCSI It can connect up to 7 devices not including the controller itself when the Wide function is disabled 8 bit SCSI Each device has one unique SCSI ID Two devices owning the same SCSI ID are not allowed Maximum Concurrent Host LUN Connections The Max Number of Concurrent Host LUN Connection menu option is used to set the maximum number of concurrent host LUN connections The default setting is 4 LUNs with a predefined range of 1 to 64 Note The Max Number of Concurrent Host LUN Connection menu option should be changed only if you have more than four logical drives or partitions Increasing this number may increa
102. build on page 3 for detailed information on rebuilding For the Rebuild rate refer to background rate on page 3 Disk spanning makes use of the firmware s striping capability to stripe data across two otherwise independent RAID logical drives The two spanned logical drives are presented to the operating environment as one logical drive The advantages of spanning are Supports two simultaneous drive failures in the combined fault tolerant logical drives provided there is one drive failure from each logical drive Improves performance because the number of spindles is increased The disadvantage of spanning is that the RAID overhead for redundant RAID levels is increased since each logical drive handles fault tolerance separately A drive that is marked as a spare to support automatic data rebuilding after a physical drive associated with a logical drive fails For a standby drive to take the place of another drive it must be at least equal in size to the failed drive and all of the logical drives dependent on the failed disk must be redundant RAID 1 3 5 and 6 or 1 0 The current operational status of a disk drive a logical drive or redundant controllers The arrays stores the states of drives logical drives and redundant controllers in its nonvolatile memory This information is retained across array power interruptions Sun StorEdge 3000 Family RAID Firmware 3 25 User s Guide June 2003 stripe size s
103. cal capacity 3 8 maximum physical drive capacity 3 8 maximum usable capacity per logical drive 8 4 minimum requirements 1 22 parity checking 3 19 3 20 partitions maximum 1 22 RAID level 3 3 RAID level selected 3 7 RAID levels default 3 2 rebuilding 3 18 size 3 3 status 3 3 logical drive Assignments command 3 10 logical drive name command 3 17 logical drive preferences 3 8 logical drives 8 26 rebuilding 8 7 logical volume 4 2 4 3 4 4 avoiding failure 4 3 creating 4 5 example multi level 4 2 expanding 4 7 using RAID expansion 4 4 explained 1 3 4 2 limitations 4 3 maximum partitions 1 3 4 2 multi level RAID 4 4 partitioning 4 3 spare drives 4 3 logical volume status 4 7 low level format 6 27 LUN Index 4 Sun StorEdge 3000 Family RAID Firmware 3 25 User s Guide June 2003 described 5 2 mapping definition Glossary 5 masking definition Glossary 5 per host SCSI ID 8 32 changing 8 32 LUN Applicability parameter 8 35 LUN defined 8 29 M main menu 2 5 navigating 2 5 quick installation 2 5 manual rebuild 8 10 mapping cylinder head sector 8 32 maximum queued I O count 8 31 tag count 7 19 tag count tag command queuing 8 22 transfer width 7 17 maximum concurrent host LUN connections 8 29 maximum drive capacity 3 8 Maximum Queued I O Count command 8 31 maximum sync xfer Clock command 7 17 Maximum Tag Count tag command queuing command 8 23 maximum Tag count com
104. ccessfully saved To restore the configuration refer to Restoring Configuration NVRAM from a File on page 10 7 10 8 Viewing Event Logs on Screen A controller event log records an event or alarm that occurs after the system is powered on Note The Event Monitoring Units in each RAID unit and each Expansion Unit send messages to the controller log that report problems and status of the fans temperature and voltage Caution Powering off or resetting the controller will automatically delete all recorded event logs 1 To view the event logs on screen select view and edit Event logs on the Main Menu and press Return Chapter 10 System Functions Info and Event Logs 10 9 lt Main Menu gt Quick installation view and edit Logical drives view and edit logical Volumes view and edit Host luns view and edit scsi Drives view and edit Scsi channels view and edit Configuration parameters view and edit Peripheral devices system Functions view system Information view and edit Event logs The controller can store up to 1000 event logs An event log can record a configuration or operation event as well as an error message or alarm event TABLE 10 1 Example Event Logs 0181 Controller Initialization Completed 2181 LG 0 Logical Drive NOTICE Starting Initialization 2182 Initialization of Logical Drive 0 Completed 2181 LG 1 Logical Drive NOTICE Starting Initiali
105. ce produit ou document ne peut tre reproduite sous aucune forme par quelque moyen que ce soit sans l autorisation pr alable et crite de Sun et de ses bailleurs de licence s il y ena Le logiciel d tenu par des tiers et quicomprend la technologie relative aux polices de caract res est prot g par un copyright et licenci par des fournisseurs de Sun Des parties de ce produit pourront tre d riv es des syst mes Berkeley BSD licenci s par l Universit de Californie UNIX est une marque d pos e aux Etats Unis et dans d autres pays et licenci e exclusivement par X Open Company Ltd Sun Sun Microsystems le logo Sun Sun StorEdge AnswerBook2 docs sun com et Solaris sont des marques de fabrique ou des marques d pos es de Sun Microsystems Inc aux Etats Unis et dans d autres pays LA DOCUMENTATION EST FOURNIE EN L TAT ET TOUTES AUTRES CONDITIONS CONDITIONS DECLARATIONS ET GARANTIES EXPRESSES OU TACITES SONT FORMELLEMENT EXCLUES DANS LA MESURE AUTORISEE PAR LA LOI APPLICABLE Y COMPRIS NOTAMMENT TOUTE GARANTIE IMPLICITE RELATIVE A LA QUALITE MARCHANDE A L APTITUDE A UNE UTILISATION PARTICULIERE OU A L ABSENCE DE CONTREFA ON Ca Adobe PostScript Contents Preface xiii Basic RAID Concepts and Planning 1 1 1 1 Before You Begin 1 2 1 1 1 Determining Which Version of the RAID Firmware Applies to Your Array 1 2 1 2 RAID Terminology Overview 1 2 1 2 1 Logical Drives 1 3 1 2 2 Logical Volumes 1 3 1
106. ck 4 Mirroring Block 6 Block 7 FIGURE 1 8 RAID 1 Configuration In addition to the data protection that RAID 1 provides this RAID level also improves performance In cases where multiple concurrent I O is occurring this I O can be distributed between disk copies thus reducing total effective data access time RAID 1 0 RAID 1 0 combines RAID 0 and RAID 1 to offer mirroring and disk striping Using RAID 1 0 is a time saving feature that enables you to configure a large number of disks for mirroring in one step It is not a standard RAID level option that you can select it does not appear in the list of RAID level options supported by the controller If four or more disk drives are chosen for a RAID 1 logical drive RAID 1 0 is performed automatically 1 12 Sun StorEdge 3000 Family RAID Firmware 3 25 User s Guide June 2003 1 3 5 Physical disks Logical drive ae i a aas J Striping NI a LA Mirroring O Block 6 Block 8 FIGURE 1 9 RAID 1 0 Configuration XX RAID 3 RAID 3 implements block striping with dedicated parity This RAID level breaks data into logical blocks the size of a disk block and then stripes these blocks across several drives One drive is dedicated to parity In the event that a disk fails the original data can be reconstructed using the parity information and the information on the remaining d
107. d partition the logical drive into additional partitions 3 4 Sun StorEdge 3000 Family RAID Firmware 3 25 User s Guide June 2003 Note If you want to assign 128 partitions to 128 LUNs in an array you need to have a minimum of four logical drives each with 32 partitions For redundancy across separate channels you can also create a logical drive containing drives distributed over separate channels You can then partition the logical unit into one or several partitions A logical drive consists of a group of SCSI drives Each logical drive can be configured a different RAID level A drive can be assigned as the local spare drive to one specified logical drive or as a global spare drive that is available to all logical drives on the RAID array Spares can be part of automatic array rebuild A spare is not available for logical drives with no data redundancy RAID 0 Drive Channel 0 Q oF O w e Drive Channel 1 4 s D Global Spare Drive Local Spare Drive of LD1 RAID 5 RAID 3 8GB 6GB Local Drive 0 Local Drive 1 FIGURE 3 1 Allocation of drives in Logical Configurations Chapter 3 Viewing and Editing Logical Drives 3 5 1 View the connected drivesphysical Before configuring disk drives into a logical drive it is necessary to understand the status of physical drives in your enclosure a Use the arrow keys t
108. ding the failed drive Detect and Clone Replace Select Drive side SCSI Parameters from the View and Edit Configuration Parameters menu Select Drive Predictable Failure Mode SMART from the Drive side SCSI Parameters menu Select Detect and Clone Replace from the Drive Predictable Failure Mode SMART menu Chapter 6 Viewing and Editing SCSI Drives 6 25 4 Assign at least one spare drive either local or global to the logical drive When a drive failure is predicted the controller clones that drive to a spare drive After the clone process is complete it immediately replaces the source drive the drive whose failure has been predicted The status of the source drive then is changed to a used drive and you can replace this drive with a new one Note If you want to see the progress of cloning press Esc to clear the notification message and see the status bar 6 12 SCSI Drive Utilities Reserved Do not use this menu option These utilities are reserved for specific troubleshooting methods and should be used only by qualified technicians To use this menu option qualified technicians follow these steps Select view and edit scsi Drives on the Main Menu and press Return Select the drive that the utility is to performed on and press Return Select scsi drive Utilities and press Return Select SCSI Drive Low level Format or Read Wri
109. drive failed RAID 5 or RAID 3 logical drive switch off the controller put the drive back and power on the controller The logical drive will be restored to one drive failed status TABLE A 2 Advanced Features Feature Description Drive Low Level Format Supported Drive Identification Supported Force the drive to light on the activity indicator for user to recognize the correct drive Sun StorEdge 3000 Family RAID Firmware 3 25 User s Guide June 2003 TABLE A 2 Drive Information Listing Drive Read Write Testing Configuration on Disk Save and Restore NVRAM to and From Disks Advanced Features Continued Supported Supported Supported The logical drive information is recorded on drive media Supported Save all the settings stored in the controller NVRAM to the logical drive members Feature Description User Configurable Geometry Range Drive Motor Spin Up Drive Side Tag Command Queue Host Side Maximum Queued I O Count Maximum Concurrent Host LUN Connection Number of Tags Reserved for Each Host LUN connection Drive I O Timeout Sector 32 64 127 255 or Variable Head 64 127 255 or Variable Cylinder lt 1024 lt 32784 lt 65536 or Variable Supported The controller will send spin up start unit command to each drive at four second intervals Supported User adjustable up to 128 for each drive User adjustable up to 1024 G ser adjustable up to 64
110. drives Partition each logical drive into 32 partitions 4 times 32 128 Map the 128 partitions to the four host IDs This is the most commonly used configuration or m Create six host IDs this requires three host drives perform one of the following steps and then map the 128 partitions to the 6 host IDs a Create 4 logical drives of 32 partitions each a Create 5 logical drives with total number of partitions equaling 128 four logical drives with 25 partitions each and one with 28 partitions a Create 6 logical drives six logical drives with 21 partitions each and one with 23 partitions For details on how to add host IDs refer to Creating Additional Host IDs on page 7 8 Note For an overview of how partitions LUNs and host IDs work refer to Mapping Logical Drive Partitions to Host LUNs on page 5 1 To set up 128 LUNs the following steps are required Create a minimum of four host IDs By default you have two host IDs Channel 1 ID 0 primary controller and Channel 3 ID 1 secondary controller You can have a total of two IDs per channel one for the Primary Controller and one for the secondary controller For the detailed procedure refer to Creating Additional Host IDs on page 7 8 Confirm that the allowed number of LUNs per host id is 32 Go to view and edit Configuration parameters and select hostside scsi parameters If the LUNs per Host SCSI ID is not 3
111. e on page 6 2 Assigning a Local Spare Drive on page 6 4 Creating a Global Spare on page 6 4 Viewing Drive Information on page 6 5 Viewing the Connected Drives on page 6 6 Scanning Drives on page 6 6 Deleting a Spare Drive on page 6 7 Setting Slot Numbers on page 6 8 a Assigning a Slot Number to an Empty Slot on page 6 9 a Adding or Deleting Drive Entries on page 6 9 a Deleting a Slot Number on page 6 9 Adding or Deleting Drive Entries on page 6 9 a Removing an Empty Drive Entry on page 6 10 Identifying a Failed Drive for Replacement on page 6 11 a Flashing Selected SCSI Drive on page 6 13 a Flashing All SCSI Drives on page 6 14 a Flashing All But Selected Drives on page 6 14 Fault Protection Measures on page 6 15 Cloning a Failing Drive on page 6 15 Understanding SMART Technology on page 6 21 How Sun StorEdge 3000 Family Arrays Use SMART on page 6 21 Enabling SMART From Firmware Menus on page 6 22 Detect Only on page 6 24 Detect and Perpetual Clone on page 6 24 Detect and Clone Replace on page 6 25 SCSI Drive Utilities Reserved on page 6 26 SCSI Drive Low Level Format on page 6 27 SCSI Drive Read Write Test on page 6 28 6 1 To view and edit physical drive parameters select view and edit scsi Drives on the Main Menu and press Return The SCSI drive status table is display
112. e June 2003 view ol 1 34732 160MB ON LINE SEAGATE T3366 5LSUN36G view view o 2 34792 160MB ON LINE SEAGATE S T3366 5LSUN36G view syst view view View drive information Scan scsi drive set slot Number m add drive Entry Identify scsi drive m clone Failing drive disk Reserved space 256 mb ON LINE SEAGATE ST336685LSUN366 ON LINE SEAGATE ST336685LSUN366 USED DRV SEAGATE ST3366 5LSUN366 ON LINE SEAGATE ST336685LSUN366 0 0 1 1 1 E 2 FIGURE 6 2 Scan scsi drive Option 3 Select the Scan scsi drive function and then press Return 0 1 34732 160MB ON LINE SEAGATE T336605LSUN366 view view o 2 34732 160MB ON LINE SEAGATE ST336605LSUNI6G ON LINE SEAGATE ST336685LSUN366 ON LINE SEAGATE ST336605LSUN366 view Sans ae 32 160MB SCSI Channel 2 32 160M The menu options will vary according to the drive status 4 Select the drive channel and SCSI ID of the drive you want to scan and press Return 6 7 Deleting a Spare Drive To delete a spare drive perform the following steps 1 Move the cursor to a local spare drive or global spare drive and press Return 2 Select Delete global local spare drive and then press Return again 3 Select Yes to confirm Chapter 6 Viewing and Editing SCSI Drives 6 7 Quic Stet Ont TO SizeCWs Seeed La DRV Status Vendor
113. e errors If the result of a parity check indicates an inconsistency it indicates that a data error exists either on one of the disk drives or on the parity drive However RAID algorithms such as RAID 5 that use XOR parity cannot determine if the error resides on a data disk or on the parity disk Enabling the Overwrite Inconsistent Parity menu option causes the RAID controller to correct the data on the parity disk automatically whenever a parity check detects an inconsistency In most cases it is important to correct the data on the parity disk as soon as an inconsistency is detected in order to avoid the potential for data loss in the event of a drive failure However some users prefer to check the integrity of their data before overwriting the parity disk Disabling the Overwrite Inconsistent Parity menu option causes the controller to report any inconsistency found in a parity check without overwriting the parity disk In this case you can check your data and determine if it is intact or if the error occurred on a data disk Once you ve made this determination and reloaded the data from backup if necessary you can manually regenerate the parity using the reGenerate parity menu option To enable or disable the Overwrite Inconsistent Parity menu option menu option perform these steps Select view and edit Logical drives from the Main Menu and press Return Select the logical drive whose automatic par
114. e 3 3V 5V and 12V voltage status Event trigger threshold user configurable Supported Monitors the CPU and board temperature status Event trigger threshold user configurable Supported Fault Bus SAF TE SES ISEMS TABLE A 9 User Interface Feature Description RS 232C Terminal Supports terminal modes ANSI VT 100 ANSI Color Provides menu driven user friendly text based interface Beeper Alarm Warns user when any failure or critical event occurs Sun StorEdge 3000 Family RAID Firmware 3 25 User s Guide June 2003 APPENDIX B Parameter Summary Tables This appendix lists the firmware parameter settings for both the FC and SCSI arrays You can fine tune your array by making changes to these settings It also lists the parameter defaults that you should not change unless advised to by Technical Support Topics covered include a Introducing Default Parameters on page B 1 m Basic Default Parameters on page B 2 a Default Configuration Parameters on page B 3 a Default Peripheral Device Parameters on page B 9 a Default System Functions on page B 10 m Keeping Specific Parameter Defaults on page B 11 B 1 Introducing Default Parameters Although the factory defaults provide optimized controller operation you may want to fine tune your array through minor modifications to the following parameters listed Some parameters can be changed only at the i
115. e 8 17 SDRAM ECC Function Reserved on page 8 18 a Drive side SCSI Parameters on page 8 18 SCSI Motor Spin Up Reserved on page 8 19 SCSI Reset at Power Up Reserved on page 8 20 Disk Access Delay Time on page 8 21 SCSI I O Timeout on page 8 21 Maximum Tag Count Tag Command Queuing on page 8 22 SAF TE and SES Enclosure Monitoring on page 8 23 Periodic Drive Check Time on page 8 24 Auto Detect Failure Drive Swap Check Time on page 8 24 a Disk Array Parameters on page 8 25 a Rebuild Priority on page 8 26 a Verification on Writes on page 8 27 a Host side SCSI Parameters on page 8 28 8 1 Overview of SCSI Channel SCSI ID and LUNs on page 8 29 Maximum Concurrent Host LUN Connections on page 8 29 Number of Tags Reserved for Each Host LUN Connection on page 8 30 Maximum Queued I O Count on page 8 31 LUNs Per Host SCSI ID on page 8 32 Cylinder Head Sector Mapping on page 8 32 a Redundant Controller Parameters Menu Reserved on page 8 34 Peripheral Device Type Parameters on page 8 35 a Setting an IP Address on page 8 36 8 1 8 1 1 Optimization Modes Caching Parameters Mass storage applications fall into two major categories database applications and video imaging applications The controller supports two embedded optimization modes a Optimization for random I O m Optimization for seq
116. e drive the drive with predicted error or any selected member drive is cloned to a standby spare and the spare then becomes the new source drive The status of the original source drive is redefined as a used drive System administrators may replace the used drive with a new one and then configure the new drive as a spare drive Note If there is no standby drive local or global spare drive you need to add a new drive and configure it as a standby drive If there is no standby drive the clone failing drive option is not displayed To replace after clone perform the following steps 1 Select view and edit scsi Drives and press Return 2 Select the member drive that you want to clone and press Return 3 Select the clone failing drive function This option is displayed only if there is a standby drive available 4 Select Replace After Clone The controller automatically starts the cloning process using the existing stand by local or global spare drive to clone the source drive the target member drive with predicted error Quic Slot Ch1 ID Size MB LG_DRV Vendor and Product ID view Z __o ___219 _20Me _O ON LINE view view View drive information 7 ON LINE ssi view Scan scsi drive view add drive Entry syst Identify scsi drive STAND BY ss view clone Failing drive Replace After one Clone and Replace Drive ves A notification message is displayed 6 16 S
117. e process will be indicated by a notification message A notification message informs you when the process is complete 21A2 LG 0 Logical Drive NOTICE CHL 1 ID 3 Copy and Replace Completed 8 Follow the same method to copy and replace every member drive with drives of higher capacity as needed You may now perform Expand logical drive to make use of the capacity brought by the new drives and then map the additional capacity to a Host LUN Drive Copying Notification 21A2 LG Logical Drive NOTICE CHL 1 ID 3 Copy and Replace Completed 3 15 Expanding a Logical Drive The user can make use of unused capacity in a logical drive by expanding the logical drive An unused capacity is usually created by replacing the original members with drives of larger capacity or by adding new drive s to a logical drive After a logical drive is expanded the additional capacity is displayed as another partition a new partition FIGURE 3 6 illustrates this idea Chapter 3 Viewing and Editing Logical Drives 3 27 4GB 4GB 4GB S88 e2 Unused 2 GB fs i RAID 5 4 GB Ie Expand Logical Drive RAID 5 8 GB 4 GB 4GB 4GB ra N partitions t Partitions N 1 _ _ new partition FIGURE 3 6 Logical Drive Expansion Note The new created area becomes a new partition RAID levels supported RAID 0 1 3 and 5 The new partition must be mapped to a host LUN in order f
118. econds Naximm Tag C 32 3 _ 5 Device ec eco t Failure Drive Suap Check Time Drive Predictable Failure Hode SMART Disable 39 seconds Fibre Channel Dual Loop Enabled isk Array Paoraneters Redundant ep ntroller Psareneters Control ler Reraneters Select Drive Predictable Failure Mode SMART from the Drive side SCSI Parameters menu Select one of the menu options from the Drive Predictable Failure Mode SMART menu Disable Detect Only Detect and Perpetual Clone Detect and Clone Replace 6 22 Sun StorEdge 3000 Family RAID Firmware 3 25 User s Guide June 2003 scet Motor Spin U Up Disabled I Reset 3 Power Ue Dissbled sezi 1 Tin Delay Se as gout i sec Max Lun Tag G Periodic Drive Check line ic SAF TE snd S Redu Cont 4 Determine whether your drives support SMART a From the View and Edit SCSI Drives menu select one drive to test and press Return A new Predictable Failure Test menu option is displayed m C C View drive inforration Scan scsi set slot Nunber ERATEN Entry Note If the SMART feature is not properly enabled this menu option will not be displayed b Select the Predictable Failure Test menu option and press Return to display a confirmation prompt Select Yes to confirm View drive inf ti Scan Ten rane Balas set slot
119. ed Reset the controller for the changes to take effect 7 1 1 SCSI Drive Channel Commands 1 From the Main Menu select view and edit Scsi channels and press Return 2 In the view and edit Scsi channels window highlight a SCSI drive channel and press Return lt Main Menu gt Quick installation view and edit Logical drives view and edit logical Volumes view and edit Host luns view and edit scsi Drives view and edit Scsi channels v T T T T T v Ch efWid Term CurSynC1k CurWid s BERS v Primary controller scsi id Wide IL Off 80 0MHz v gt Secondary controller scsi id 1 scsi Terminator Wide L Off 20 0MHz Wide sync transfer Clock 2 Wide transfer Wide L Off Async Narrow View and edit scsi target 3 parity check Enabled Wide L Off 80 0 Hz Wide view chip information 6 7 i i erial F NA 1 GHz Serial 7 4 Sun StorEdge 3000 Family RAID Firmware 3 25 User s Guide June 2003 712 SCSI Host Channel Commands 1 From the Main Menu select view and edit Scsi channels and press Return In the view and edit Scsi channels window highlight a SCSI host channel and press Return m lt Main Menu gt Quick installation i view and edit Logical drives view view MAN T view view and edit scsi Id scsi Terminator OoOo vr sync transfer Clock v Ch Wide transfer C
120. ed Use this command to view the SCSI drives associated with the selected logical drive The drive s channel ID status and model number can be viewed in the table displayed on screen To modify or view additional information highlight a line in the SCSI drive table and press Return to view the available commands Note The menu will vary according to the drive status 6 1 SCSI Drive Status Table To check and configure physical SCSI drives on the Main Menu select view and edit scsi Drives and then press Return The resulting screen displays the status of all SCSI drives If there is a drive installed but not listed the drive may be defective or not installed correctly When power is on the controller scans all hard drives that are connected through the drive channels If a hard drive was connected after the controller completes initialization select any SCSI drive on the SCSI table press Return and use the Scan scsi drive function to let the controller recognize the newly added hard drive and configure it as a member of a logical drive Quic Slot Chi 1D Size WB Speed Lc_pRv Status Vendor and Product 1D view view O ON LINE SEAGATE 1373405LC view view 6 1 70007 160MB 0 ON LINE SEAGATE T373405LC view I I I I I TABLE6 1 Parameters Displayed in the Drive Status Window Parameters Description Slot Slot number of the SCSI drive Chl SCSI channel of the connected
121. edit Host luns view and edit scsi Drives view and edit Scsi channels view and edit Configuration parameters v PUiew Peripheral Device Status nnn nmam z D ITEM STATUS e Redundant Controller LOCATION Enabled Primary AF TE Device perational Channel ID 3 Select SAF TE Device and press Return to view the status of temperature sensors power supplies beeper speaker and cooling fans The temperature sensor displays the current temperature of each sensor in degrees Fahrenheit The drive slot status indicates that a slot is filled by displaying a SCSI ID number m Single bus configuration 0 through 13 ID numbers if all 12 drives are filled SCSI IDs 6 and 7 are reserved for host communication If there is an empty slot the message No Device Inserted is displayed See FIGURE 9 3 a Dual bus configuration not supported the message No Device Inserted for the six drives on one channel and six ID numbers for the second channel See FIGURE 9 4 To check whether you have all slots filled in a dual bus configuration see SCSI Drive Status Table on page 6 2 and check the column labeled Chl ID Chapter 9 Viewing and Editing Peripheral Devices 9 3 Product ID StorEdge 2316 A Revision Level 6 62 Unique ID 3636363132323338 Operational Operational Operational and On Operational and On 78 Sensor Sensor Sensor Sensor Sensor Sensor Sensor RR OSs no AONE tt et et et
122. edundant Controller Parameters Controller Parameters 1 From the Main Menu select view and edit Configuration parameters select Host side SCSI Parameters and then press Return 2 Select Number of Tags Reserved for each Host LUN Connection and then press Return A list of available selections is displayed 3 Select an item and press Return Select Yes in the dialog box that follows to confirm the setting 8 12 4 Maximum Queued I O Count This function allows you to configure the maximum size of the I O queue the controller can accept from the host computer by byte size The predefined range is from 1 to 1024 bytes or you may choose the Auto automatically configured mode The default value is 256 bytes lt Main Menu gt installation s per Host D 8 Max Number_of Concurrent Host LUN Connection Def Number of Tags Reserved for each Host LUN Connectio Peripheral Device T Parameters Host Cylinder Head Setar Mapping Configuration Fibre Connection Option Loop only Host side Parameters Drive side Parameters Disk Array Parameters Redundant Controller Parameters Controller Parameters 1 From the Main Menu select view and edit Configuration parameters select Host side SCSI Parameters and then press Return 2 Select Maximum Queued I O Count and then press Return A list of available selections is displayed Chapter 8 Viewing and Editing Configuration
123. emote Redundant Disabled Disabled Enabled Controller Disabled User Defined Parameter Controller Parameters Controller Name LCD Title Display Password Validation Timeout Controller Unique FC Default Setting Not Set Controller Logo Always Check Automatically set by the SCSI Default Settings Not Set Controller Logo Always Check Automatically set by the Range of Values Type a name Do Not Change this parameter Disable 1 2 or 5 minutes Type a value Identifier SAF TE or SES device SAF TE or SES device SDRAM ECC Enabled Enabled Do Not Change this parameter DMEP Controller Parameters Total Usable Memory for Disabled Disabled Type a percentage based DMEP on the RAM available from the controller B 8 Sun StorEdge 3000 Family RAID Firmware 3 25 User s Guide June 2003 B 4 Default Peripheral Device Parameters The following peripheral device parameters are available TABLE B 11 Peripheral Device Type Parameters View and Edit Peripheral Devices User Defined Parameter FC Default Setting SCSI Default Settings Range of Values Set Peripheral Device Entry Redundant Controller Primary Primary Force primary controller failure Force secondary controller failure UPS Status Disabled Disabled Enabled Disabled Set Peripheral Device Entry gt Event Trigger Operations Temperature exceeds Not applicable in FC Enabled Disabled
124. emperature 37 0 C Temperature within Safe Range Adju Board1 Temperature 50 5 C Temperature within Safe Range Cont Board2 Temperature 50 0 C Temperature within Safe Range View Peripheral Device Status Voltage and Temperature Parameters The components checked for voltage and temperature will be displayed on screen and will be defined as normal or out of order Sun StorEdge 3000 Family RAID Firmware 3 25 User s Guide June 2003 CHAPTER 10 System Functions Info and Event Logs This chapter contains a discussion of system functions configuration information and shows you how to view event logs Topics covered include m System Functions on page 10 1 m Muting the Beeper on page 10 2 a Setting a New Password on page 10 3 a Changing a Password on page 10 4 a Disabling the Password on page 10 4 Resetting a Controller on page 10 5 Shutting Down the Controller on page 10 6 Restoring Configuration NVRAM from a File on page 10 7 Saving Configuration NVRAM to Disk on page 10 8 Viewing Event Logs on Screen on page 10 9 10 1 System Functions 1 Select system Functions from the Main Menu and press Return The system Functions menu is displayed 10 1 lt Main Menu gt Quick installation view and edit Logical drives view and edit logical Volumes view and edit Host luns view and edit scsi Drives view and edit Scsi ch
125. enabled __enabled Slot number maximum sync xfer Clock Befault max imum 7 af Width Enabled Def Befault Parity check Disconnect support Set Maximum eee el Count Restore to default setting bled ome Def n 4 Select Yes and press Return to confirm the setting Caution Disabling the Maximum Tag Count will disable the internal cache of the SCSI drive Chapter 7 Viewing and Editing SCSI Channels 7 19 7 20 Sun StorEdge 3000 Family RAID Firmware 3 25 User s Guide June 2003 CHAPTER 8 Viewing and Editing Configuration Parameters This chapter describes viewing and editing configuration parameters Topics covered a Optimization Modes Caching Parameters on page 8 2 a Optimizing for Random or Sequential I O on page 8 5 a Enabling and Disabling Write Back and Write Through Cache on page 8 6 a Controller Failure on page 8 6 a Automatic Logical Drive Rebuild on page 8 7 Manual Rebuild on page 8 10 Concurrent Rebuild in RAID 1 0 on page 8 11 Identifying a Failed Drive for Replacement on page 8 12 Restoring Your Configuration NVRAM From a File on page 8 12 Recovering From Fatal Drive Failure on page 8 13 m Controller Parameters on page 8 14 Controller Name on page 8 14 LCD Title Display Controller Logo Not Applicable on page 8 15 Password Validation Timeout on page 8 16 Controller Unique Identifier on pag
126. es view and edit Host luns Mode Primary controller scsi id Secondary controller scsi id scsi_lerminator s ef Wid 9 Term cursync ik emng 3 Select Yes and press Return 7 8 Setting Transfer Clock Speed Typically the default setting for sync transfer clock is not changed for the host or drive channel Follow these steps to view the options for host or drive transfer clock speed 1 From the Main Menu select view and edit Scsi channels and press Return 2 Highlight the drive or host channel and press Return 3 Select sync transfer Clock and press Return The clock speed is displayed Typically the default setting for Host Channel Clock Speed is not changed for the host channel 4 If you want to change the clock speed select Yes and select the desired speed Chapter 7 Viewing and Editing SCSI Channels 7 13 7 8 1 Host Channel Transfer Clock Speed Main Menu gt Quick installation view and edit Logical drives i channel Mode i view and edit scsi Id i scsi Terminator sync PDE ae er oc Pea transfer parity check_ Enabled view niee inFormation Note Every time you change the clock speed you must reset the controller for the changes to take effect 7 8 2 Drive Channel Transfer Clock Speed Main Menu gt Quick installation view and edit Logical drives 00 O channel Mode rimary controller scsi id econdary controller scs
127. et SCSI ID can have up to 32 drawers LUNs a Data can be stored into one of the LUNs of the SCSI ID Most SCSI host adapters treat a LUN like another SCSI device a The maximum number of LUNs which can be created for a RAID array is 128 To create a total of 128 LUNs refer to Planning for 128 LUNs on page 5 5 LUN 2 FIGURE 5 1 Filing Cabinet Represents the SCSI ID and File Drawers Represent the LUNs 5 2 SCSI ID LUNs Each SCSI ID LUN looks like a storage device to the host computer 5 2 Sun StorEdge 3000 Family RAID Firmware 3 25 User s Guide June 2003 Channel 3 Logical Drive 1 Partition 0 Logical Drive 0 Partition 2 Logical Drive 0 Partition 1 Logical Drive 1 ee isos Partition 1 A Logical Drive 0 O Partition 0 To map a logical drive partition to a LUN perform the following steps Logical Drive 1 Partition 2 FIGURE 5 2 Mapping Partitions to Host ID LUNs 1 On the Main Menu select view and edit Host luns 2 Select a specific host channel ID and press Return Select a logical drive if prompted lt Main Menu gt Quick installation view and edit Logical drives view and edit ine Volumes Vv v H Primar ontroller v ntroller v E gi st s ogica olume view Physical SCSI Drive 3 Select a LUN number and press Return Select a logical drive then highlight a partition and press Return Chapter 5 Viewing and Editing Host LUNs 5 3 LUN LY LD DRY
128. et et et et et eeeerrrrrors Off or No Speaker Drive Slot SCSI ID FIGURE 9 3 Example of SAF TE Device Status Window in a Single Bus Configuration In a dual bus configuration example the following SAF TE window displays No Device Inserted for six drives that are actually inserted into slots The SAF TE protocol does not support a dual bus configuration and recognizes only one bus half the drives if you have a dual bus configuration Device Inserted Inserted Inserted Inserted Inserted Product ID StorEdge 3310 A Revision Level ABBA Unique ID 3132333435362020 Cooling Fan Operational Operational Operational and On pparational and On BROS O OUT AWN Sensor Sensor Off or No Speaker Drive Slot No Device Inserted FIGURE 9 4 Example of SAF TE Device Status Window in a Dual Bus Configuration 9 4 Sun StorEdge 3000 Family RAID Firmware 3 25 User s Guide June 2003 9 3 93 1 Setting Peripheral Device Entry The menu functions within the Set Peripheral Device Entry include the following m Redundant Controller a UPS Status lt Main Menu gt Quick installation view t Logical drives logic H FIGURE 9 5 Set Peripheral Device Entry Redundant Controller Mode Do Not Change The redundant controller mode is automatically set to Enabled Do not change this setting For more information about redundant controller operation refer to Controller Defaults and Limitations
129. eturn Select reGenerate parity and press Return P View scsi drives 8 GOOD S 3 a 8 Delete logical drive Partition logical drive logical drive Name P Expand logical drive 6 GOOD S 6 6 e NONE a NONE ceucecececcHo When prompted to Regenerate Parity select Yes Note If a regenerating process is stopped by a drive failure the process cannot restart until logical drive rebuild has been completed Select Execute Regenerate Logical Drive Parity and press Return Q w i jw RarD sizecm gt Status Je HLN ESB RPL NAME m PO 631E74B0 9 RAIDS 4008 GOOD S Te v P RTE RTS a y Overwrite Inconsistent Parity Enabled ja P3 2D6BBEA4 NA RAIDS 7500 GOOD S 6 6 ms 4 NONE 5 NONE 6 NONE NONE 6 When prompted to regenerate the parity select Yes Chapter 3 Viewing and Editing Logical Drives 3 19 Note If a regenerating process is stopped by a drive failure the process cannot restart until logical drive rebuild has been completed 3 12 Overwriting Inconsistent Parity In normal operation many regions of physical disks may not be accessed for long periods of time The primary purpose of the parity checking operation in RAID 3 and RAID 5 configurations is to ensure that all sectors of the media can be successfully read and to provide alerts if a disk is starting to experience read or writ
130. f a global or local spare drive is available The clone drive still functions as a standby drive If the drive whose failure has been predicted does fail subsequently the clone drive takes over immediately Chapter 6 Viewing and Editing SCSI Drives 6 21 6 11 5 Note If the drive whose failure has been predicted continues to work successfully and another drive in the same logical drive fails the clone drive performs as a standby spare drive and start to rebuild the failed drive immediately This helps prevent a fatal drive error if yet another drive fails m Clone Replace The controller sends a command to enable all the drives SMART functions Ifa drive predicts a problem the controller reports the predicted problem as an entry in the event log The controller then clones the drive whose failure has been predicted to a standby spare drive and takes the drive whose failure has been predicted off line as soon as the cloning process is completed Enabling SMART From Firmware Menus Follow these steps to enable SMART on all drives Enable the Periodic Drive Check Time function a Select Drive side SCSI Parameters from the View and Edit Configuration Parameters menu b Select Periodic Drive Check Time from the Drive side SCSI Parameters menu c Select a time interval SCSI Motor Spin Up Disabled CSI Reset s Powers Up Disabled sca Access Delay Time seconds I 70 Timeout 14 s
131. fies the change in speed The host adapter driver is designed to downgrade the negotiation rate on certain errors predominantly parity errors There is little or no performance change Note Each controller has a separate RS232 port as well as an Ethernet chip This architecture ensures continuous communication should a controller fail Since the connection is established to only one controller even when the array is in redundant mode the CurSyncClk and CurWid settings are displayed for that individual controller Therefore if a user maps one LUN to the primary controller and another LUN to a secondary controller only the established connection to that individual controller is displayed through the serial and Ethernet port menu 1 Highlight a SCSI channel 2 Return to view the additional commands available for that channel 7 2 Sun StorEdge 3000 Family RAID Firmware 3 25 User s Guide June 2003 TABLE 7 1 Parameters Displayed in the SCSI Channel Window Parameters Description Chl SCSI channel s ID Mode Channel mode RCCom Redundant controller communication channel Host The channel is functioning as a host channel Drive The channel is functioning as a drive channel PID Primary controller s SCSI ID mapping ij Multiple SCSI IDs were applied host channel mode only x The SCSI ID for host LUNs mapped to this channel in Host Channel mode SCSI ID for the primary controller in drive channel mode NA No
132. file perform the following steps 1 From the Main Menu choose system functions 2 Select Controller maintenance and press Return 3 Select Restore NVRAM from disks and press Return 4 Press Yes to confirm A prompt will notify you that the controller NVRAM data has been successfully restored from disks 10 7 Saving Configuration NVRAM to Disk This function is used to save controller dependent configuration information and is highly recommended whenever a configuration change is made The logical configuration information will be stored within the logical drive Note A logical drive must exist for the controller to write NVRAM content onto it 1 From the Main Menu select system Functions 2 Use arrow keys to scroll down and select Controller Maintenance select save nvram to disks and then press Return 10 8 Sun StorEdge 3000 Family RAID Firmware 3 25 User s Guide June 2003 lt Main Menu gt Quick installation view and edit Logical drives view and edit logical Volumes view and edit Host luns view and edit scsi Drives view and edit Scsi channels view and edit Configuration parameters view and edit Peripheral devices syst V Download Firmware Advanced Maintenance Functions Save nyram to disks Save NURAM To Disks No 3 Select Yes to confirm A prompt will inform you that NVRAM information has been su
133. firmware of the first controller automatically synchronizes overwrites the firmware of the second controller to be the same firmware In redundant mode the maximum number of disk drive IDs on a SCSI drive channel is 16 IDs 6 and 7 are used for host HBA connections Both controllers must be initially configured as primary controllers Upon boot up in a redundant configuration the controllers autonegotiate and designate one controller as primary and the other controller as secondary The two controllers behave as one primary controller Once the redundant configuration takes effect user configurations and settings can be done only on the primary controller The secondary controller then synchronizes with the configuration of the primary controller making the configurations of the two controllers exactly the same The two controllers continuously monitor each other When a controller detects that the other controller is not responding the working controller immediately takes over and disables the failed controller It is necessary to connect all interfaces to both controllers so that the surviving controller can readily continue all services provided for the RAID system For example if you connect one controller to the Ethernet you should also connect the second controller to the Ethernet In an active to active configuration standard configuration you can assign any appropriate logical drives to either of the controllers and then ma
134. form the following steps 1 Use arrow keys to scroll down to view and edit scsi Drives and press Return Quic Slot Chl ID Size MB Speed LG_DRV Status Vendor and Product ID view view AE a MY CYA TS Se OO view 0 1 70007 160MB O ON LINE SEAGATE T373405LC view 2 Use arrow keys to scroll the table Check to see if there are any drives installed but not listed here If there is a drive installed but not listed the drive may be defective or not installed correctly contact your RAID supplier 3 If a hard drive was connected after the controller completes initialization select a drive from the table press Return and use the Scan scsi drive function to enable recognition of the newly added hard drive and to configure the new drive as a member of a logical drive Caution Scanning an existing drive will remove its assignment to any logical drive All data on that drive will be lost 6 6 Scanning Drives To scan a new SCSI drive installed after the controller completed initialization and to enable its use perform the following steps 1 On the Main Menu select view and edit scsi Drives and press Return 2 Select a drive from the SCSI drive table and press Return Caution Scanning an existing drive will remove its assignment to any logical drive All data on that drive will be lost 6 6 Sun StorEdge 3000 Family RAID Firmware 3 25 User s Guid
135. hat had the configuration originally you must be certain that the channels and SCSI IDs in the configuration file are correct for the array where you are restoring the configuration The NVRAM configuration file will restore all configuration settings channel settings host IDs etc but does not rebuild logical drives To save a configuration file refer to Saving Configuration NVRAM to Disk on page 10 8 Caution If the channels or SCIS IDs are not a correct match for the array you will lose access to the mismatched channels or drives when you restore the configuration with the configuration file Note In the Configuration Service program you can save a configuration file that can restore all configurations and rebuild all logical drives However it will also erase all data when it rebuilds all logical drives so operation is performed only when no data has been stored or all data has been transferred to another array 8 12 Sun StorEdge 3000 Family RAID Firmware 3 25 User s Guide June 2003 To restore configuration settings from a saved NVRAM file perform the following steps From the Main Menu choose system Functions Select Controller maintenance and press Return Select Restore NVRAM from disks and press Return Press Yes to confirm A prompt will notify you that the controller NVRAM data has been successfully restored from disks 8 8 Recovering From Fatal Drive Fai
136. he hard drives and controllers that are powered on at the same time spinning up the hard drives serially is one of the best ways to consume lower power up current If the drives are configured as Delay Motor Spin up or Motor Spin up in Random Sequence some of these drives may not be ready for the controller to access when the array powers up Increase the disk access delay time so that the controller will wait a longer time for the drive to be ready By default all hard drives will spin up when powered on These hard drives can be configured so that they will not all spin up at the same time Select view and edit Configuration parameters on the Main Menu Select Drive side SCSI Parameters and then press Return The Drive side SCSI parameters menu is displayed Select SCSI Motor Spin Up and then press Return Select Yes in the dialog box that follows to confirm the setting Chapter 8 Viewing and Editing Configuration Parameters 8 19 8 10 2 SCSI Reset at Power Up Reserved Do not use the SCSI Reset at Power Up menu option It is reserved for specific troubleshooting methods and should only be used by qualified technicians By default when the controller is powered on it sends a SCSI bus reset command to the SCSI bus When disabled it does not send a SCSI bus reset command when powered on When connecting dual host computers to the same SCSI bus the SCSI bus reset interrupts all the read wri
137. he use of controller firmware and VT100 commands to configure and monitor Sun StorEdge 3000 Family arrays Note Different versions of controller firmware apply to different Sun StorEdge 3000 Family arrays Before downloading new firmware be sure to check the Readme file or appropriate release notes to make sure you are upgrading a supported version of the firmware for your array This manual is written for customers and Sun Microsystems service representative who are already familiar with Sun Microsystems hardware and software products Caution You should read the Sun StorEdge 3000 Family Safety Regulatory and Compliance Manual for your array before beginning any procedure in this manual How This Book Is Organized This book covers the following topics Chapter 1 introduces the RAID terminology concepts Chapter 2 explains how to access the array through the COM port and a terminal emulation program Chapter 3 describes the view and edit Logical drives command and related procedures xiii Chapter 4 describes the view and edit logical Volumes command and related procedures Chapter 5 describes the view and edit Host luns command and related procedures Chapter 6 describes the view and edit scsi Drives command and related procedures Chapter 7 describes the view and edit Scsi channels command and related procedures Chapter 8 describes the view and edit Configuratio
138. here are three categories of events TABLE C 1 Categories of Event Messages Category Description Response Alert Errors that need to attend to immediately may require reconnecting cables replacing a component or rebuilding a drive Errors which may indicate a temporary condition a possible component Warning problem or the need to adjust controller parameters Press Esc to clear message Notification Informational message sent from controller firmware press Esc to clear message C 1 Controller Events The controller records all array events during power on it records up to 1 000 events Caution Powering off or resetting the controller will cause an automatic deletion of all recorded event logs C 1 1 Alerts 0104 Controller ALERT DRAM Parity Error Detected 0105 Controller lt primary secondary gt SDRAM ECC lt multi bits single bit gt Error Detected 0110 CHL _ FATAL ERROR _ 0111 Controller ALERT Redundant Controller Failure Detected 0114 Controller ALERT Power Supply Unstable or NVRAM Failed C 1 2 Warnings 0107 Memory Not Sufficient to Fully Support Current Config C 1 3 Notifications 0111 Controller NOTICE Redundant Controller Firmware Updated 0181 Controller Initialization Completed 0187 Memory is Now Sufficient to Fully Support Current Config 0189 NVRAM Factory Defaults Restored 0189 NVRAM Restore from Disk is Completed 0189 NVRAM Restore from File is
139. i id scsi Terminator sync transfer oc efWid S Term CurSynClk Cur Wide transfer BRENW View and edit scsi target parity check _ Enabled view chip inFormation fe NOBUO WO SW gt Note Every time you change the clock speed you must reset the controller for the changes to take effect 29 Setting the SCSI Transfer Width Typically the default setting for transfer speed is not changed for the host or drive channel On a SCSI array follow these steps to view the options for transfer speed 7 14 Sun StorEdge 3000 Family RAID Firmware 3 25 User s Guide June 2003 1 Select view and edit Scsi channels from the Main Menu and press Return 2 Highlight the drive or host channel and press Return 3 If you want to change the transfer width select Wide transfer if the channel setting is Narrow or select narrow transfer if the channel setting is Wide Note Every time you change the SCSI Transfer Width you must reset the controller for the changes to take effect Main Menu gt Quick Instal latTon view and edit Logical drives channel Mode view and edit scsi Id scsi Terminator aes transfer Clock P Enable Wide Transfer Def Hral S Term C rsyncIk curnial OO O T f i Yesu No Narrow r ETETE Drive 6 40 ontiz nide e On 20 0mmz wiae e ee wa em e on r 4 Select Yes 7 10 Viewing and
140. ical Drive 3 15 Sun StorEdge 3000 Family RAID Firmware 3 25 User s Guide June 2003 3 8 3 9 3 10 3 11 3 12 3 13 3 14 3 15 Deleting a Partition of a Logical Drive 3 16 Assigning Logical Drive Name 3 17 Rebuilding a Logical Drive 3 18 Performing a Logical Drive Parity Check 3 19 Overwriting Inconsistent Parity 3 20 Adding a SCSI Drive to a Logical Drive 3 21 Copying and Replacing Drives with Drives of Larger Capacity 3 24 Expanding a Logical Drive 3 27 Viewing and Editing Logical Volumes 4 1 4 1 4 2 4 3 4 4 Understanding Logical Volumes Multilevel RAID 4 2 Creating a Logical Volume 4 5 Expanding a Logical Volume 4 7 Viewing a Logical Volume Status Table 4 7 Viewing and Editing Host LUNs 5 1 5 1 5 2 5 3 5 4 5 5 Mapping Logical Drive Partitions to Host LUNs 5 1 SCSI ID LUNs 5 2 Planning for 128 LUNs 5 5 Example Host LUN Mappings 5 6 Deleting a Host LUN Mapping 5 8 Viewing and Editing SCSI Drives 6 1 6 1 6 2 6 3 6 4 6 5 6 6 6 7 SCSI Drive Status Table 6 2 Assigning a Local Spare Drive 6 4 Creating a Global Spare 6 4 Viewing Drive Information 6 5 Viewing the Connected Drives 6 6 Scanning Drives 6 6 Deleting a Spare Drive 6 7 Contents v vi 6 8 Setting Slot Numbers 6 8 6 8 1 Assigning a Slot Number to an Empty Slot 6 9 6 8 2 Deleting a Slot Number 6 9 6 9 Adding or Deleting Drive Entries 6 9 6 9 1 Removing an Empty Drive Entry 6 10 6 10 Identifying a Failed Drive for
141. ical Volume ves No The logical volume creation confirm box is displayed Select Yes to create the logical volume 6 Press Return and the information of the created logical volume is displayed 4 6 Sun StorEdge 3000 Family RAID Firmware 3 25 User s Guide June 2003 4 3 Expanding a Logical Volume To expand a logical volume expand logical drive s in the logical volume and then perform Expand logical volume Q vV 3 v v v Delete logical volume vi 2 Partition logical volume ters v logical volume Assignments v v When prompted by Expand Logical Volume select Yes to confirm and the process will be completed immediately 4 4 Viewing a Logical Volume Status Table To check and configure logical drives from the Main Menu select view and edit Logical drives and press Return The following screen displays the status of all logical drives Chapter 4 Viewing and Editing Logical Volumes 4 7 Parameters vices lt lt ucccccBco TABLE 4 1 Parameters Displayed in the Logical Volume Status Window Parameters Description LV Logical volume number P primary controller S secondary controller ID Logical volume ID number controller generated Size MB Capacity of the logical volume in megabytes LD The number of logical drive s in this logical volume 4 8 Sun StorEdge 3000 Family RAID Firmware 3 25 User s Guide June 2003 CHAPTER 5 Viewing and Editing
142. iding a Slot Number 7 16 7 10 2 Maximum Synchronous Transfer Clock 7 17 7 10 3 Maximum Transfer Width 7 17 7 10 4 Parity Check 7 18 7 10 5 Disconnecting Support 7 18 7 10 6 Maximum Tag Count 7 19 8 Viewing and Editing Configuration Parameters 8 1 8 1 8 2 8 3 8 4 Optimization Modes Caching Parameters 8 2 8 1 1 Optimization Limitations 8 2 8 1 2 Database and Transaction Based Applications 8 3 8 1 3 Video Recording Playback and Imaging Applications 8 3 8 1 4 Optimization for Random I O 32K block size 8 3 8 1 5 Optimization for Sequential I O 128K block size 8 4 8 1 6 Maximum Number of Disks and Maximum Usable Capacity for Random and Sequential Optimization 8 4 Optimizing for Random or Sequential I O 8 5 Enabling and Disabling Write Back and Write Through Cache 8 6 Controller Failure 8 6 Contents vii 8 5 Rebuilding Logical Drives 8 7 8 5 1 Automatic Logical Drive Rebuild 8 7 8 5 2 Manual Rebuild 8 10 8 5 3 Concurrent Rebuild in RAID 1 0 8 11 8 6 Identifying a Failed Drive for Replacement 8 12 8 7 Restoring Your Configuration NVRAM From a File 8 12 8 8 Recovering From Fatal Drive Failure 8 13 8 9 Controller Parameters 8 14 8 9 1 Controller Name 8 14 8 9 2 LCD Title Display Controller Logo Not Applicable 8 15 8 9 3 Password Validation Timeout 8 16 8 9 4 Controller Unique Identifier 8 17 8 9 5 SDRAM ECC Function Reserved 8 18 8 10 Drive side SCSI Parameters 8 18 8 10 1 SCSI Motor Spin Up Reserved 8 1
143. ing and Editing Configuration Parameters 8 5 8 3 Enabling and Disabling Write Back and Write Through Cache The write back cache function significantly enhances controller performance Write through strategy is considered more secure if power failure should occur Because a battery module is installed power will be supplied to the data cached in memory and the cached writes can be completed when power is restored To change the caching parameter option perform the following steps 1 On the Main Menu select view and edit Configuration parameters and press Return 2 Select Caching Parameters and press Return 3 Select Write Back Cache and then press Return displays The current write back cache setting is displayed as either Enabled or Disabled lt Main Menu gt Quick installation view and edit Logical drives view and edit logical Volumes view and edit Host luns view and edit scsi Drives view and edit Scsi channels view and edit Configuration parameters Communication Parameters Caching Parameters rite Bac ache Disabled Enable Write Back Cache yes No 4 Select Yes in the dialog box that follows to confirm the setting 8 4 Controller Failure Controller failure symptoms are as follows m The surviving controller sounds an audible alarm m The center LED status symbol flashes yellow on the failed controller 8 6 Sun StorEdge 3000 Family RAID Fi
144. ing the Beeper 10 2 Setting a New Password 10 3 10 3 1 Changing a Password 10 4 10 3 2 Disabling the Password 10 4 Resetting a Controller 10 5 Shutting Down the Controller 10 6 Restoring Configuration NVRAM from a File 10 7 Saving Configuration NVRAM to Disk 10 8 Viewing Event Logs on Screen 10 9 Contents ix A Firmware Specifications A 1 B Parameter Summary Tables B 1 B 1 Introducing Default Parameters B 1 B 2 Basic Default Parameters B 2 B 3 Default Configuration Parameters B 3 B 4 Default Peripheral Device Parameters B 9 B 5 Default System Functions B 10 B 6 Keeping Specific Parameter Defaults B 11 C Event Messages C 1 C 1 Controller Events C 1 C 1 1 Alerts C 2 C 1 2 Warnings C 2 C 1 3 Notifications C 2 C 2 SCSI Drive Events C 2 C 2 1 Warnings C 2 C 2 2 Notifications C 2 C 3 SCSI Channel Events C 3 C 3 1 Alerts C 3 C 3 2 Notifications C 3 C 4 Logical Drive Events C 3 C 4 1 Alerts C 3 C 4 2 Notifications C 3 C 5 General Target Alerts C 3 C 5 1 SAF TE Device C 4 C 5 2 Controller On Board C 4 C 5 3 IC Device C4 x Sun StorEdge 3000 Family RAID Firmware 3 25 User s Guide June 2003 C 5 4 SES Devices C 4 C 5 5 General Peripheral Device C 4 Glossary Glossary 1 Acronyms Glossary 1 Terminology Glossary 3 Index Index 1 Contents xi xii Sun StorEdge 3000 Family RAID Firmware 3 25 User s Guide June 2003 Preface gt This guide provides an overview of RAID terminology and explains t
145. initial screen the Main Menu is displayed lt Main Menu gt Quick installation view and edi ogical drives view and edit logical Volumes view and edit Host luns view and edit scsi Drives view and edit Scsi channels view and edit gonf is view and edit Peripheral devices system Functions view system Information view and edit Event logs uration parameters Use the arrow keys to move the cursor bar through the menu items and then press Return to choose a menu or Esc key to return to the previous menu screen gt T To select options Return To go to a submenu or to execute a selected option ESC To escape and go back to the previous menu Ctrl L To refresh the screen information 27 Quick Installation Reserved RESERVED for special use Caution DO NOT USE this command unless directed by Technical Support Chapter 2 Accessing the Controller Firmware 2 5 2 8 Upgrading Firmware For firmware upgrade procedures refer to the Sun StorEdge 3000 Family Installation Operation and Service Manual for your array 2 6 Sun StorEdge 3000 Family RAID Firmware 3 25 User s Guide June 2003 CHAPTER 3 Viewing and Editing Logical Drives This chapter explains how to view and edit logical drives Topics covered include Introducing the Logical Drive Commands on page 3 1 Default Logical Drives and RAID Levels on page 3 2 Viewing the Logical Drive Status Table on page 3 3
146. ion Parameters 8 23 8 10 7 Periodic Drive Check Time The Periodic Drive Check Time is an interval for the controller to check the drives on the SCSI bus at controller startup a list of all detected drives can be seen under view and edit scsi Drives The default value is Disabled which means that if a drive is removed from the bus the controller will not know that the drive is removed until a host tries to access that drive Changing the check time to any other value allows the controller to check at the selected interval all of the drives that are listed under view and edit scsi Drives If any drive is then removed the controller will know even if a host does not access that drive SCSI Motor Spin Up Disabled SCSI Reset at Power Up Disabled Disk Access Delay Time 60 seconds Disable SCSI I1 0_Timeout 10 seconds ci Count 32 secon eriodic Drive ec i seconds 2 seconds eriodic SAF and e ec ime seco seconds Periodic Auto Detect Failure Drive Swap Check Time seconds Drive Predictable Failure Mode SMART Detect Only seconds Fibre Channel Dual Loop Enab Drive side Parameters Dis Array Parameters Redundant Controller Parameters Controller Parameters 8 10 8 Auto Detect Failure Drive Swap Check Time The Drive Swap Check Time is the interval at which the controller checks to see whether a failed drive has been swapped When a logical drive s member drive fails the controller will detect
147. isks In RAID 3 the total disk capacity is equivalent to the sum of the capacities of all drives in the combination excluding the parity drive Thus combining four 1 Gbyte drives for example creates a single logical drive with a total usable capacity of 3 Gbytes This combination appears to the system as a single logical drive RAID 3 provides increased data transfer rates when data is being read in small chunks or sequentially However in write operations that do not span every drive performance is reduced because the information stored in the parity drive needs to be recalculated and rewritten every time new data is written limiting simultaneous 1 O Chapter 1 Basic RAID Concepts and Planning 1 13 Logical drive Physical disks Dedicated parity Striping FIGURE 1 10 RAID 3 Configuration 1 3 6 RAID 5 RAID 5 implements multiple block striping with distributed parity This RAID level offers redundancy with the parity information distributed across all disks in the array Data and its parity are never stored on the same disk In the event that a disk fails original data can be reconstructed using the parity information and the information on the remaining disks 1 14 Sun StorEdge 3000 Family RAID Firmware 3 25 User s Guide June 2003 137 Logical drive Physical disks Striping nondedicated parity Block 1 Block 4 Parity 5 6 KUC Block 7 FIGURE
148. it Scsi channels and press Return 2 Select the host channel with the SCSI ID you want to delete and press Return 7 10 Sun StorEdge 3000 Family RAID Firmware 3 25 User s Guide June 2003 Select Delete Channel SCSI ID and press Return A Delete Primary Secondary Controller SCSI ID confirmation message is displayed Select Yes and press Return On the Main Menu select system Functions and press Return Select Reset controller and press Return The configuration change take effect only after the controller is reset 7 6 Drive Channel SCSI IDs Reserved Do not use this menu option It is reserved for specific troubleshooting methods and should be used only by qualified technicians On SCSI arrays this menu option provides two choices m Primary controller scsi id m Secondary controller scsi id These commands are used to change the default drive SCSI IDs Chapter 7 Viewing and Editing SCSI Channels 7 11 lt Main Menu gt Quick installation view and edit Logical drives channel Mode Primary controller scsi id econdary controller scsi id il oe de enfer clock fWid S Term CurSynC1k C sync transfer oc efWi erm CurSynC1k ur Wide transfer View and edit sesi target Wide L On Async Nar parity check _ Enabled view chip inFormation W Change Primary Controller SCSI ID i A R W ECH No A Wide L On Async Nar ID 13 ID 14 ID 15 ID ID 1
149. ity area overwriting you wish to enable or disable and press Return 3 Select reGenerate parity and press Return 3 20 Sun StorEdge 3000 Family RAID Firmware 3 25 User s Guide June 2003 ceuccececHo i oO 3 gt H RAID Size lt MB gt Cn 631E74B6 B RAIDS View scsi drives 8 Delete logical drive Partition logical drive logical drive Name eee an drive cOpy and replace drive NONE NONE NONE 4 Select Overwrite Inconsistent Parity and press Return to toggle between enabling and disabling this menu option ceuceecececHo 3 13 LG ID Ww NAME PO 631E74B0 ad ne ROR TT EERIE B Overwrite Inconsistent Parity Enabled P3 2D6BBEA4 NA RALDS 7500 GOOD S e 4 NONE 5 NONE 6 NONE NONE Adding a SCSI Drive to a Logical Drive RAID expansion allows users to expand a logical drive by adding new drives or by copying the data from the original member drives to the new drives and then replacing the original member drives without powering down the array Expansion can only be performed on RAID 0 3 and 5 logical drives Expansion cannot be performed on an RAID 1 logical drive When you add a drive to a logical drive you add a partition the size of the new drive to the logical drive Therefore if you have a single 200 GB logical drive and add a 36 GB drive the total logical drive will be 236 GB with
150. ive without substituting it The status of the spare drive will be displayed as a CLONE drive after the cloning process The source drive will remain as a member of the logical drive 1 Select view and edit scsi Drives from the Main Menu and press Return 2 Select the member drive with predicted error and press Return 3 Select clone Failing drive and press Return 4 Select Perpetual Clone and press Return Quic view view view view view view syst view view Siok foo TO Size Size MB E DRV Status Vendor and Product ID PO _ON L INE ON LINE a rive ntry Identify scsi drive NONE NEW ORV Replace After Clone NONE NEW DRV 2 Perpetual Clone Drive Yes No The controller will automatically start the cloning process by using the existing stand by local or global spare drive to clone the source drive Q Q View mei Scan scsi drive set slot Number Note If there is no standby drive local or global spare drive you need to add a new drive and configure it as a standby drive A notification message is displayed 21A1 LG 0 Logical Drive NOTICE CHL 1 ID 3 Starting Clone 5 Press ESC to view current progress on a status bar 6 18 Sun StorEdge 3000 Family RAID Firmware 3 25 User s Guide June 2003 2 5 319 2 MB NONE NEW DRY 6 To quit viewing the status bar press ESC to return to the
151. ive Global spare drive Logical drive 0 Logical drive 1 Logical drive 2 FIGURE 1 13 Global Spare Chapter 1 Basic RAID Concepts and Planning 1 17 1 4 3 Using Both Local and Global Spare Drives In FIGURE 1 14 the member drives in logical drive 0 are 9 Gbyte drives and the members in logical drives 1 and 2 are all 4 Gbyte drives Local spare drive Global spare drive 9 GB 4 GB Logical drive 0 Logical drive 1 Logical drive 2 FIGURE 1 14 Mixing Local and Global Spares A local spare drive always has higher priority than a global spare drive that is if a drive fails and both a local spare and a global spare drive are available the local spare drive is used In FIGURE 1 14 it is not possible for the 4 Gbyte global spare drive to join logical drive 0 because of its insufficient capacity The 9 Gbyte local spare drive aids logical drive 0 once a drive in this logical drive fails If the failed drive is in logical drive 1 or 2 the 4 Gbyte global spare drive immediately aids the failed drive 1 18 Sun StorEdge 3000 Family RAID Firmware 3 25 User s Guide June 2003 1 5 Controller Defaults and Limitations The following controller functions describe the redundant controller operation Both controllers must be exactly the same Namely they must operate with the same firmware version the same size of memory the same number of host and drive channels etc When a replacement controller is placed in a system the
152. ive table and press Return 3 Select the set slot Number function and press Return An entry box will be displayed 6 8 Sun StorEdge 3000 Family RAID Firmware 3 25 User s Guide June 2003 4 Type in a value 0 15 that represents the slot number of the drive and press Return This value does not need to be the device s predetermined SCSI ID number The slot number is displayed in the Slot column of the drive information list 6 8 1 Assigning a Slot Number to an Empty Slot When there is an empty slot or sled that does not contain a drive the corresponding SCSI channel ID will not appear in the drive information list You can assign a slot number to the empty slot and add a drive entry in order to use it later when a drive is installed 6 8 2 Deleting a Slot Number To delete the slot number of a SCSI drive perform the following steps 1 On the Main Menu select view and edit scsi Drives and press Return 2 Select the desired SCSI drive and press Return 3 Select Set Slot Number select 0 and press Return 6 9 Adding or Deleting Drive Entries This function is used to add an additional record to the SCSI drive table Use the command Clear drive status if you want to later remove a drive designation from the table Chapter 6 Viewing and Editing SCSI Drives 6 9 lt Main Menu gt Quick installation view and edit Logical drives view and edit logical Volumes view and edit Host
153. k array systems and to take advantage of the performance gains offered by an array of multiple disks over single disk storage RAID s two primary underlying concepts are Distributing data over multiple hard drives improves performance m Using multiple drives properly allows for any one drive to fail without loss of data and without system downtime In the event of a disk failure disk access continues normally and the failure is transparent to the host system 1 2 Sun StorEdge 3000 Family RAID Firmware 3 25 User s Guide June 2003 1201 12 2 t23 Logical Drives Increased availability capacity and performance are achieved by creating logical drives A logical drive is an array of independent physical drives To the host the logical drive appears the same as a local hard disk drive e Z FIGURE 1 1 Logical Drive Including Multiple Physical Drives Logical drives can be configured to provide several distinct RAID levels described in the remainder of this section Logical Volumes The concept of a logical volume is very similar to that of a logical drive A logical volume is composed of one or more logical drives The logical drives in a logical volume do not have to be composed of the same RAID level A logical volume can be divided into a maximum of 32 partitions for SCSI arrays and 128 partitions for Fibre Channel arrays During operation the host sees n unpartitioned logical volume or a partition of a p
154. l I O 128K block size Optimization for sequential I O provides larger stripe size block size also known as chunk size than optimization for random I O Numerous controller s internal parameters will also be changed to optimize for sequential or random I O The change will take effect after the controller resets The logical drive cache memory and other controller internal parameters are adjusted for the use of video imaging applications Maximum Number of Disks and Maximum Usable Capacity for Random and Sequential Optimization Your choice of Random or Sequential optimization affects the maximum number of disks you can include in an array and the maximum usable capacity of a logical drive The following tables contain the maximum number of disks per logical drive and the maximum usable capacity of a logical drive Note You can have a maximum of eight logical drives and 36 disks using one array and two expansion units TABLE 8 1 Maximum Number of Disks per Logical Drive for a 2U Array Disk Capacity RAID 5 RAID 5 RAID 3 RAID 3 RAID 1 RAID 1 RAID 0 RAID 0 GB Random Sequential Random Sequential Random Sequential Random Sequential 36 2 14 31 14 31 28 36 14 36 73 4 7 28 7 28 12 30 6 27 146 8 4 14 4 14 6 26 3 13 TABLE 8 2 Maximum Usable Capacity Gbyte per Logical Drive for a 2U Array Disk Capacity RAID 5 RAID 5 RAID 3 RAID 3 RAID 1 RAID 1 RAID 0 RAID 0 Random Sequential Random Sequential Random Sequential Ra
155. l drive press Esc key to continue to the next option After member physical drives are selected a list of selections is displayed Assign Logical Drive Assignments 5 Optionally set Maximum Physical Drive Capacity and assign spares a Optionally select Maximum Drive Capacity from the above menu and press Return Note Changing the maximum drive capacity will reduce the size of the logical drive and leave some disk space unused Maximum Available Drive Capacity MB 9999 B 92999 Maximum Drive Capacity As a rule a logical drive should be composed of physical drives with the same capacity A logical drive can only use the capacity of each drive up to the maximum capacity of the smallest drive b Optionally add a local spare drive from the list of unused physical drives Note A global spare cannot be created while creating a logical drive The spare chosen here is a local spare and will automatically replace any failed disk drive in this logical drive The local spare will not be available for any other logical drive 3 8 Sun StorEdge 3000 Family RAID Firmware 3 25 User s Guide June 2003 ie Po s7oeacer nalRatox asee e000 s1 7Fsasaa na Raro1 asee 6000 Pa 5asee1s1 Na Raro1 asee 6000 T sa 27c1Foa na a 2E7C1FD4 3500 34476MB Dis eserved Space 6 Logical Drive Assignments o o 2E7C1FD4 S1ot Chi 10 Size HB Speed GORY Status Vendor and Product 10 E r
156. l make it no longer eligible for membership in a logical volume Continue Partition Logical Drive 5 Select Yes A list of the partitions for this logical drive is displayed If the logical drive has not yet been partitioned all the logical drive capacity will list as partition 0 6 Press Return and type the desired size for the selected partition and then press Return to proceed Chapter 3 Viewing and Editing Logical Drives 3 13 LU RAID Size lt MB Partition Offset lt MB gt Size lt MB gt NAME NA a Partition Size lt MB gt 3000 A warning prompt is displayed This operation will result in the loss of all data on the partition Partition Logical Drive Caution Make sure any data on this partition that you want to save has been backed up before you partition the logical drive 7 Select Yes and press Return to confirm The remaining capacity of the logical drive will be automatically allotted to the next partition In the following figure a partition size of 3000MB was entered the remaining storage of 27000 MB is allocated to the partition below the partition created ue 1 fw arn Size lt MB Partition Offset lt MB gt Size lt MB gt gt a 30008 p B61LESAB NA e eucececec Bc NAME a a LL 27000 coat 8 Repeat the preceding steps to partition the remaining capacity of your logical drive
157. led 2111 LG _ Logical Drive ALERT CHL _ ID _ Clone Failed Notifications 2181 LG _ Logical Drive NOTICE Starting Initialization 2182 Initialization of Logical Drive _ Completed 2183 LG _ Logical Drive NOTICE Starting Rebuild 2184 Rebuild of Logical Drive _ Completed 2185 LG _ Logical Drive NOTICE Starting Parity Regeneration 2186 Parity Regeneration of Logical Drive _ Completed 2187 LG _ Logical Drive NOTICE Starting Expansion 2188 Expansion of Logical Drive _ Completed 2189 LG _ Logical Drive NOTICE Starting Add SCSI Drive Operation 218a Add SCSI Drive to Logical Drive _ Completed 218b LG _ Logical Drive NOTICE Add SCSI Drive Operation Paused 218c LG _ Logical Drive NOTICE Continue Add SCSI Drive Operation 21a1 LG _ Logical Drive NOTICE CHL _ ID _ Starting Clone 21a2 LG _ Logical Drive NOTICE CHL _ ID _ Clone Completed Appendix C Event Messages C 5 C 5 C 5 1 C 5 2 General Target Alerts General Target Alert messages include SAF TE Device 3f21 SAF TE Device _ ALERT Power Supply Failure Detected _ 3 22 SAF TE Device _ ALERT Cooling Fan Not Installed _ 3 22 SAF TE Device _ ALERT Cooling Fan Failure Detected _ 3 23 SAF TE Device _ ALERT Elevated Temperature Alert _ 3f24 SAF TE Device _ ALERT UPS Power Failure Detected _ Controller On Board 3 23 Peripheral Device ALERT CPU Temperature lt high low threshold gt Temperature Detected
158. led disk The primary advantage of disk mirroring is 100 data redundancy Since the disk is mirrored it does not matter if one of the disks fails Both disks contain the same data at all times and either can act as the operational disk Disk mirroring provides 100 redundancy but is expensive because each drive in the array is duplicated A Fibre Channel port in a point to point or Fabric connection Refers to the connections and devices that are not in the data path A process whereby the integrity of the redundant data on fault tolerant arrays RAID 1 3 5 and 6 or 1 0 is checked The parity checking procedure on a logical drive recalculates the parity of data stripes in each of the logical drive s RAID stripe sets and compares it with the stored parity If a discrepancy is found an error will be reported and the new correct parity will be substituted for the stored parity A pair of interconnected controller units Expansion units interconnected to the pair of controller units can also be part of the partner group A physical array is a group of physical drives in Configuration Service that participate in one or more logical drives If a group of physical drives is configured into a logical drive without using the entire capacity of the physical drives Configuration Service will require that the same physical array of drives be used together in any remaining logical drives that are created with the remaining capacity In the New C
159. lk DefWid Term CurSynC1k CurWid st parity check Enabled v view chip information Hz Wide L Off 80 MHz Wide v EE o0 OMZ Wide L OLT 20 OMH 2 Drive 6 7 80 0 Hz Wide L Off Async Narrow 3 Host 3 2 80 MHz Wide L Off 80 0MHz Wide 7A 6 C RCCOM NA NA AUTO Serial NA 1 GHz Serial 7 2 Til Configuring SCSI Channels as Host or Drive All Sun StorEdge RAID arrays are preconfigured when they arrive from the factory Default channel settings and rules are shown in the following sections SCSI Default Channel Settings m Channel 0 CH 0 MUST be a drive channel m Channels 1 2 and 3 CH 1 CH 2 CH 3 can be drive or host channels a Default channel settings are a CH 0 and CH 2 Drive channels CH 1 and CH 3 Host channels The most common reason to change a host channel to a drive channel is when you attach an expansion unit to a RAID array and only need one host channel Chapter 7 Viewing and Editing SCSI Channels 7 5 Tee Changing Channel Assignments To change the use of a SCSI channel reconfigure the channel according to the following procedure 1 Select view and edit Scsi channels from the Main Menu lt Main Menu gt Quick installation view and edit Logical drives view and edit logical Volumes view and edit Host luns view and edit scsi Drives view and edit Scsi channels y Chl Mode PID SID DefSynC1k
160. ll be activated on the next event 10 3 Setting a New Password lt Main Menu gt Quick installation view and edit Logical drives view and edit logical Volumes view and edit Host luns view and edit scsi Drives view and edit Scsi channels view and edit Configuration parameters view and edit aaa devices m vii Mute beeper R C S tow Passwords To change the password perform the following steps 1 Select system Functions in the Main Menu and press Return and select change Password 2 Enter the desired password in the column and press Return The next dialog box will display Re Enter Password 3 Enter the password again to confirm and press Return The new password now becomes the controller s password Providing the correct password may be necessary when entering the Main Menu from the Initial screen Chapter 10 System Functions Info and Event Logs 10 3 10 3 1 10 3 2 Changing a Password 1 Select system Functions from the Main Menu and press Return Use the controller s password to protect the array from unauthorized entry Once the controller s password has been set the user can only configure and monitor the RAID controller by providing the correct password Note The controller is able to verify the password when entering the Main Menu from the initial screen or making configuration change If the controller will be left unattended the Password
161. ll perform Verify after Write according to the selected method Note The verification on Normal Drive Writes method will affect the write performance during normal use To select the type of verification wanted perform the following steps Select view and edit Configuration parameters then select Disk Array Parameters and then press Return again The Disk Array Parameters menu is displayed Press Return on the Verification on Writes in the Disk Array Parameters menu The items for selection is displayed on screen Chapter 8 Viewing and Editing Configuration Parameters 8 27 lt Main Menu gt Quick installation view and edit Logical drives view and edit logical Volumes view and edit Host luns view and edit scsi Drives view and edit Scsi channels view and edit Configuration parameters Communication Parameters Caching Parameters Host ieation on LD build Writes Dis p R Verification on Normal Drive Writes Disabled 3 Select the desired item and press Return Main Menu gt Quick installation view and edit Logical drives view and edit logical Volumes view and edit Host luns view and edit scsi Drives view and edit Scsi channels view and edit Configuration parameters Communication Parameters Caching Parameters i n a V R V Enable Initialize RAID with Verify Data Ver il Yes No 4 Select Yes in the confirm box to ena
162. llowing m Choose system Functions from the Main Menu and press Return Select Reset controller and press Return or m Power off the array Wait five seconds and power on the array 7 Repeat steps 4 and 5 to check the logical and SCSI drive status After resetting the controller if there is a false bad drive the array will automatically start rebuilding the failed RAID set If the array does not automatically start rebuilding the RAID set check the status under view and edit Logical drives m If the status is FAILED DRV manually rebuild the RAID set refer to Manual Rebuild on page 8 10 m If the status is still FATAL FAIL you have lost all data on the logical drive and must re create the logical drive Proceed with the following procedures a Replace the failed drive with a new disk drive refer to the Sun StorEdge 3310 SCSI Array Installation Operation and Service Manual Guide a Deleting a Logical Drive on page 3 15 a Creating Logical Drive s on page 3 4 For additional troubleshooting tips refer to the Sun StorEdge 3310 SCSI Array Release Notes located at www sun com products n solutions hardware docs Network_Storage_Solutions Workgroup 3310 8 9 Controller Parameters Controller parameters are described in this section 8 9 1 Controller Name The Controller Name is displayed only in the firmware program and is used to identify separate controllers
163. lows e It provides fault tolerance e It increases performance through the ability to perform both read and write seeks in parallel e The cost per usable megabyte of disk storage is low RAID 5 requires at least 3 drives RAID 1 0 combines RAID 0 and RAID 1 to offer mirroring and disk striping RAID 1 0 enables recovery from multiple drive failures because of the full redundancy of the hard disk drives If four or more disk drives are chosen for a RAID 1 logical drive RAID 1 0 is performed automatically A logical volume with several RAID 3 member logical drives A logical volume with several RAID 5 member logical drives Chapter 1 Basic RAID Concepts and Planning 1 9 1 3 1 1 3 2 JBOD Single Drive Control 2GB 7 Q T 2 GB Hard Drive Logical Drive sce ce G C Q 268 Hard Drive Logical Drive 1GB Q ee 1 GB Hard Drive Logical Drive 2GB Q ae 2 GB Hard Drive Logical Drive FIGURE 1 6 JBOD Configuration JBOD is an abbreviation for Just a Bunch of Disks A JBOD is a disk array directly attached to a host rather than to an array controller and does not provide data redundancy The JBOD controller treats each drive as a standalone disk so each drive is an independent logical drive RAID 0 RAID 0 implements block striping where data is broken into logical blocks and is striped across several drives Unlike other RAID levels there is no facility for redundancy In the event of a di
164. lume implementation Maximum Number of Logical 8 Drives Raid Level Dependency to Independent Logical drive configured in different RAID Each Logical Drive levels can coexist in an array Maximum Drive Number of 31 RAID 3 or 5 45 RAID 0 44 RAID 1 Each Logical Drive Logical Drive Identification Unique controller generated logical drive ID logical drive name is user configurable A 1 TABLE A 1 MaXimum Partitions per Array Basic RAID Management Continued 128 for SCSI arrays 1028 for FC arrays Maximum Number of Logical 8 Drives in a Logical Volume Feature Description Maximum Number of Luns per Host ID Concurrent I O Tag Command Queuing Dedicated Spare Drive Global Spare Drive Auto Rebuild Onto Spare Drive Auto Scan of Replacement Drive Upon Manually Initiated Rebuild One Step Rebuild Onto Replacement Drive Auto Rebuild Onto Failed Drive Replacement Auto Recovery From Logical Drive Failure Up to 32 user configurable Supported Supported Supported defined as the spare drive specifically assigned to a logical drive Supported the spare drive is available for all logical drives Supported Supported Supported With no spare drive assigned the controller auto scans the failed drive and starts to rebuild automatically once the failed drive has been replaced Supported When user accidentally removes the wrong drive to cause the second drive failure of a one
165. lure With the redundant RAID array system your system is protected with the RAID parity drive and by the default global spare you may have more than one Note A FATAL FAIL status occurs when there is one more drive failing than the number of spare drives available for the logical drive If a logical drive has two global spares available then three failed drives must occur for FATAL FAIL status In an extremely rare occurrence where two or more drives appear to fail at the same time perform the following steps Discontinue all input output activity immediately To cancel the beeping alarm use a paperclip to press the Reset button below the LEDs on the front right ear of the array Physically check whether all the drives are firmly seated in the array and that none have been partially or completely removed Check again the firmware Main Menu and check the view and edit Logical drives and look for Status FAILED DRV one failed drive or Status FATAL FAIL two or more failed drives Highlight the logical drive press Return and select view scsi drives If two physical drives have a problem one drive will have a BAD status and one drive will have a MISSING The MISSING status is a reminder that one of the drives may be a false failure The status does not tell you which drive might be a false failure Chapter 8 Viewing and Editing Configuration Parameters 8 13 6 Do one of the fo
166. ly RAID Firmware 3 25 User s Guide June 2003 Expand logical volume command 4 7 expanding limitations 3 21 logical drive 3 27 copy and replace 3 24 logical volume 4 4 4 7 expansion limitations 3 21 F fabric definition Glossary 3 fault management controller parameters B 2 fault prevention 6 15 fault tolerance definition Glossary 3 fault tolerance 8 6 fault tolerant logical drive definition Glossary 4 FC AL definition Glossary 1 fibre channel controller parameter settings B 2 definition Glossary 4 firmware automatic rebuild 8 9 cache status 2 4 controller failure rebuild replacement 8 6 controller voltage and temperature 9 8 cursor bar 2 4 gauge range 2 4 logical drive status 3 3 6 20 main menu 2 5 manual rebuild 8 10 quick installation 2 5 SCSI channel status 7 1 SCSI drive status 6 2 transfer rate indicator 2 4 VT 100 screen selection 2 4 firmware download considerations 1 2 flash all but selected drive command 6 12 Flash All Drives command 6 11 flash drive time command 6 12 flash selected drive command 6 12 flashing all SCSI drives 6 14 selected SCSI drives 6 13 format low level 6 27 G gauge range 2 4 GBIC definition Glossary 1 global spare drive 1 16 1 17 creating 6 4 definition 1 4 deleting 6 7 explained 1 17 groups definition Glossary 4 H head mapping 8 32 host application 1 21 host channel commands 7 4 host channel SCSI ID adding
167. mand 7 19 maximum xfer Width command 7 17 mirroring RAID 1 definition Glossary 5 MISSING drive status 6 3 motor spin up 8 19 SCSI 8 19 N N port definition Glossary 5 NAME controller 3 11 naming controller 8 14 8 15 8 16 narrow transfer 7 15 NEW DRV drive status 6 3 nexus SCSI 8 29 Number of Tags Reserved for each Host LUN Connection Command 8 31 NVRAM saving to disk 10 8 O optimization random I O maximum size 8 3 sequential I O maximum size 8 3 Optimization for Random I O command 8 5 Optimization for Sequential I O command 8 5 optimization mode 1 21 limitations 8 2 random or sequential 8 5 Optimization Modes Caching Parameters 8 2 out of band definition Glossary 5 P parameters cache 8 3 controller 8 14 drive side 8 18 drive side SCSI 8 19 host side advanced config 8 28 peripheral device 8 35 physical drives 6 2 parity logical drive checking 3 19 3 20 parity check 7 18 definition Glossary 5 SCSI target drive channel 7 18 partitioning logical volume 4 3 partitions deleting 3 16 Index 5 logical drive deleting 3 16 logical volume maximum 1 3 maximum 1 22 4 2 partner group definition Glossary 5 password changing 10 4 disabling 10 4 setting anew 10 3 setting new 10 3 validation timeout 8 16 Password Validation Timeout command 8 16 periodic drive check time 8 24 periodic drive swap auto check 8 24 peripheral device parameters
168. me assigned to array administration activities such as rebuilding failed drives checking parity and initialization If the background rate is set to 100 the array administration activities have a higher priority than any other array activity At 0 the array administration activity is done only if there is no other activity on the array controller Allows data to be stored in a pre designated area of a disk or RAM random access memory Caching is used to speed up the operation of RAID arrays disk drives computers and servers or other peripheral devices Any path used for the transfer of data and control information between storage devices and a storage controller or I O adapter Also refers to one SCSI bus on a disk array controller Each disk array controller provides at least one channel Fibre Channel network built around one or more switches A fabric switch functions as a routing engine which actively directs data transfer from source to destination and arbitrates every connection Bandwidth per node through a Fabric switch remains constant when more nodes are added and a node on a switch port uses an up to 100 MB per second data path to send or receive data A mode of operation for failure tolerant arrays in which a component has failed and its function has been assumed by a redundant component The capacity to cope with internal hardware problems without interrupting the array s data availability often by using backup sy
169. n lt Main Menu gt Quick installation view and edit Logical drives view and edit logical Volumes view and edit Host luns scsi Drives view and edit Scsi channels view and edit Configuration parameters view and edit Peripheral devices system Functions view system Information view and edit Event logs Select the drive you want to identify and then press Return Select the Identify scsi drive menu option and press Return Select flash All drives to flash the activity LEDs of all of the drives in the drive channel and press Return Chapter 6 Viewing and Editing SCSI Drives 6 11 lt Main Menu gt Quick installation view and edit Logical drives view and edit logical Volumes and edit Host luns and edit scsi Drives View drive information add Local spare drive add Global spare drive as asa a a flash All drives ON LINE 0 ON LINE HITACHI DK31CJ 72FC Flash Drive Time ada flash all But selected drive Second Clear drive status Identifying clone Failing drive scsi drive Utilities Flash All Drives KE B NONE USED DRV HITAC FIGURE 6 5 Flash All Drives Function The option to change the Flash Drive Time is displayed 5 Confirm your choice by pressing Return and selecting Yes Note Alternatively to flash the read write LED of only a selected drive choose fl
170. n parameters command and related procedures Chapter 9 describes the view and edit Peripheral devices command and related procedures Chapter 10 describes the system Functions command array information and event logs Appendix A provides the array firmware specifications Appendix B summarizes controller parameters for optimization and parameter defaults which should not be changed Appendix C lists the event messages The Glossary provides RAID terminology and definitions used throughout the product documentation Using UNIX Commands This document might not contain information on basic UNIX commands and procedures such as shutting down the system booting the system and configuring devices See one or more of the following for this information m Solaris Handbook for Sun Peripherals m AnswerBook2 online documentation for the Solaris operating environment a Other software documentation that you received with your system xiv Sun StorEdge 3000 Family RAID Firmware 3 25 User s Guide June 2003 Typographic Conventions Typeface Meaning Examples The names of commands files Edit your login login file and directories on screen Use 1s a to list all files computer output You have mail AaBbCc123 AaBbCc123 What you type when contrasted su with on screen computer output password AaBbCc123 Book titles new words or terms Read Chapter 6 in the User s Guide words t
171. nd press Return to reset the controller Note If instead you select No and press Return you will lose access to the controller and will need to power it up manually or use the CLI to restart it 10 6 Restoring Configuration NVRAM from a File If you have saved a configuration file and want to apply the same configuration to another array or re apply it to the array which had the configuration originally you must be certain that the channels and SCSI IDs in the configuration file are correct for the array where you are restoring the configuration Chapter 10 System Functions Info and Event Logs 10 7 The NVRAM configuration file will restore all configuration settings channel settings host IDs etc but does not rebuild logical drives To save a configuration file refer to Saving Configuration NVRAM to Disk on page 10 8 Caution If the channels or SCIS IDs are not a correct match for the array you will lose access to the mismatched channels or drives when you restore the configuration with the configuration file Note In the Configuration Service program you can save a configuration file which can restore all configurations and rebuild all logical drives However it will also erase all data when it rebuilds all logical drives so operation is only performed when no data has been stored or all data has been transferred to another array To restore configuration settings from a saved NVRAM
172. ndom Sequential 36 2 471 1086 471 1086 507 543 507 1122 73 4 440 1982 440 1982 440 1101 440 1982 146 8 440 1908 440 1908 440 1908 440 1908 8 4 Sun StorEdge 3000 Family RAID Firmware 3 25 User s Guide June 2003 Note You might not be able to use all disks for data when using 36 146 Gbyte disks Any remaining disks can be used as spares 8 2 Optimizing for Random or Sequential I O lt Main Menu gt Quick installation view and edit Logical drives view and edit logical Volumes view and edit Host luns view and edit scsi Drives view and edit Scsi channels view and edit Configuration parameters Communication Parameters Caching Parameters D _Write Back Cache Enabled p Optimization for Sequentia 70 Cont Optimization for Random 1 0 LSS No The default optimization mode is for Sequential Optimization mode for sequential is automatically applied to any logical configuration of drives larger than 512GB To select the optimization mode for all drives perform the following steps On the Main Menu select view and edit Configuration parameters then select Caching Parameters Select Optimization for Random I O or Optimization for Sequential I O Then press Return The Random or Sequential dialog box is displayed depending on the option you have selected Select Yes in the dialog box that follows to confirm the setting Chapter 8 View
173. ning a VT 100 terminal emulation program or by a Windows terminal emulation program such as HyperTerminal Note You can also monitor and configure a RAID array over an IP network with the Configuration Service program after you assign an IP address to the array For details refer to Appendix C in the Sun StorEdge 3310 SCSI Array Installation Operation and Service Manual and to the Sun StorEdge 3310 SCSI Configuration Service User Guide To set up the serial port connection perform the following steps 2 1 1 Use a serial cable to connect the COM port of the RAID array to serial port b on a Solaris workstation A DB9 to DB25 serial cable adapter is provided to connect the serial cable to DB25 serial ports on workstations Make sure that a null modem cable can be attached to the host serial port The null modem cable has serial signals swapped for connecting to a standard serial interface COM port COM port FIGURE 2 1 RAID Array COM Port Connected Locally to the COM Port of a Workstation or Computer Terminal Power up the array Set the serial port parameters on the workstation as follows 38400 baud 8 bit 1 stop bit no parity 2 2 Accessing the Firmware Application From a Solaris Host See Redefining the Baud Rate for the tip Command on page 2 3 for setting serial port parameters on a Solaris host See Using the tip Command for Local Access to the Array on page 2 3 for instructi
174. nitial array configuration other parameters may be changed at any time Please note the listing of parameters defaults that should not be changed unless directed by Technical Support Note For customer convenience these tables apply to both the Sun StorEdge 3310 SCSI array using firmware version 3 25 and the Sun StorEdge 3510 FC array using firmware version 3 27 B 1 B 2 Basic Default Parameters These parameters are the primary settings for each array TABLE B 1 Logical Drive Parameters View and Edit Logical Drives User Defined Parameter FC Default Setting SCSI Default Settings Range of Values Create Logical Drives e 1 2 per array e 1 2 spares per array e 1 8 drives per array Change a Logical Drive Primary Secondary Controller Assignment TABLE B 2 Logical Volume Parameters View and Edit Logical Volumes User Defined Parameter FC Default Setting SCSI Default Settings Range of Values Create a Logical Volume Primary controller Secondary Auto Assign Global Spare Disabled Disabled Enabled Drive Disabled TABLE B 3 Host LUN Parameters View and Edit Host LUNs User Defined Parameter FC Default Setting SCSI Default Settings Host LUN IDs 16 IDs per channel maximum in loop 2 IDs per channel maximum mode 1 ID per channel in point to Channel 1 ID 0 primary point mode Channel 1 ID NA secondary Channel 0 ID 40 primary Channel 3 ID NA primary Channel 1 ID 42 secondary
175. nment a signal that the write operation is complete without waiting until the data is actually written to the disk drive Within a short time the controller when not busy writes the data to the disk drive Write back caching improves the performance of write operations and the throughput of the controller card However because there is a danger of data loss in the case of a power failure arrays with write back caching should be equipped with a UPS or battery backup cache A UPS will provide power long enough to allow any data in the cache memory to be written to the disk drive With battery backup cache the battery will provide power to retain the memory data for up to 72 hours A cache writing strategy used to control write operations The write policy options are write back and write through cache Glossary 7 write through cache A cache writing strategy in which the array controller writes the data to the disk drive before signaling the host operating environment that the process is complete Write through cache has lower write operation and throughput performance than write back cache but it is the safer strategy with minimum risk of data loss on power failure Glossary 8 Sun StorEdge 3000 Family RAID Firmware 3 25 User s Guide June 2003 Index SYMBOLS FL 3 4 LN 3 4 SB 3 4 A Add Channel SCSI ID command 7 8 add drive Entry command 6 10 Add Global spare drive command 6 5 add Local spare drive command 6 4 add
176. not fixed Supported Supported Workload can be flexibly divided between different controllers by assigning logical drives to different controllers Sun StorEdge 3000 Family RAID Firmware 3 25 User s Guide June 2003 TABLE A 5 User Configurable Channel Mode Redundant Controller Rolling Firmware Upgrade Redundant Controller Firmware Synchronization Redundant Controller Supported Channel modes are configurable as HOST or DRIVE in both single controller and redundant controller mode Firmware upgrade can be downloaded to the primary controller and then be adopted by both controllers In the event of controller failure a replacement controller running a different version of firmware can restore a redundant array with a failed controller Different firmware versions can be auto synchronized later TABLE A 6 Data Safety Feature Description Regenerate Parity of Logical Drives Bad Block Auto Reassignment Battery Backup for Cache Memory Verification on Normal Writes Verification on Rebuild Writes Verification on LD Initialization Writes Drive SMART Support Clone Failing Drive Supported Can be performed periodically by the user to ensure that bad sectors do not cause data loss in the event of drive failure Supported Automatic reassignment of bad blocks Supported The battery backup solutions provide long lasting battery support to the cache memory when power failure occurs
177. o Sun StorEdge AnswerBook2 docs sun com and Solaris are trademarks or registered trademarks of Sun Microsystems Inc in the U S and in other countries U S Government Rights Commercial use Government users are subject to the Sun Microsystems Inc standard license agreement and applicable provisions of the FAR and its supplements DOCUMENTATION IS PROVIDED AS IS AND ALL EXPRESS OR IMPLIED CONDITIONS REPRESENTATIONS AND WARRANTIES INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY FITNESS FOR A PARTICULAR PURPOSE OR NONINFRINGEMENT ARE DISCLAIMED EXCEPT TO THE EXTENT THAT SUCH DISCLAIMERS ARE HELD TO BE LEGALLY INVALID Copyright 2002 2003 Dot Hill Systems Corporation 6305 El Camino Real Carlsbad California 92009 Etats Unis Tous droits r serv s Sun Microsystems Inc et Dot Hill Systems Corporation peuvent avoir les droits de propri t intellectuels relatants la technologie incorpor e dans le produit qui est d crit dans ce document En particulier et sans la limitation ces droits de propri t intellectuels peuvent inclure un ou plus des brevets am ricains num r s http www sun com patents et un ou les brevets plus suppl mentaires ou les applications de brevet en attente dans les Etats Unis et dans les autres pays Ce produit ou document est prot g par un copyright et distribu avec des licences qui en restreignent l utilisation la copie la distribution et la d compilation Aucune partie de
178. o be emphasized Replace command line variables with real names or values These are called class options You must be superuser to do this To delete a file type rm filename The settings on your browser might differ from these settings Shell Prompts Shell C shell C shell superuser Bourne shell and Korn shell Bourne shell and Korn shell superuser Prompt machine name machine name Preface xv Related Documentation Title Part Number Sun StorEdge 3310 SCSI Array Release Notes 816 7292 Sun StorEdge 3000 Family Best Practices Manual 816 7293 Sun StorEdge 3000 Family Installation Operation and Service Manual 816 7290 Sun StorEdge 3000 Family Configuration Service 1 3 User s Guide 817 3337 Sun StorEdge 3000 Family Diagnostic Reporter 1 3 User s Guide 817 3338 Sun StorEdge 3000 Family Rack Installation Guide 816 7320 Sun StorEdge 3000 Family FRU Installation Guide 816 7326 Sun StorEdge 3000 Family Safety Regulatory and Compliance Manual 816 7930 Contacting Sun Technical Support For late breaking news and troubleshooting tips review the Sun StorEdge 3310 SCSI Array Release Notes located at www sun com products n solutions hardware docs Network_Storage_Solutions Workgroup 3310 If you have technical questions about this product that are not answered in the documentation go to http www sun com service contacting To initiate or check on a USA only service request contact S
179. o scroll down to view and edit Scsi drives and press Return This displays information of all the physical drives that are installed Quic Slot Chl ID Size MB Speed LG_DRV Status Vendor and Product ID view view 70007 160MB O ON LINE SEAGATE 1373405LC view ol 1 70007 160MB O ON LINE SEAGATE T373405LC view f I j T b Use the arrow keys to scroll through the table Check that all installed drives are listed here If a drive is installed but is not listed it might be defective or might not be installed correctly contact your RAID supplier When the power is on the controller scans all hard drives that are connected through the drive channels If a hard drive was connected after the controller completed initialization use the Scan scsi drive function accessed with the view and edit scsi Drives command on the Main Menu to let the controller recognize the newly added hard drive and configure it as a member of a logical drive Caution Scanning an existing drive removes its metadata references and its assignment to any logical drive All data on that drive will be lost 2 Create a logical drive a Scroll through the Main Menu and select view and edit logical drive 3 6 Sun StorEdge 3000 Family RAID Firmware 3 25 User s Guide June 2003 lt lt ucccc lt lt Ho b Select the first available unassigned logical drive LG and press Return to proceed You can
180. onfiguration window the Add Disk button changes to Add Array when the remaining drive capacity is on multiple physical drives that have already been used to create a logical drive Now that the physical drives have been sliced they have to be selected as an array They cannot be selected separately Glossary 5 Glossary 6 RAID read policy rebuild spanning standby drive state Redundant Array of Independent Disks An arrangement of two or more disk drives configured to work together to provide more disk storage space better performance and or redundant backup of data Various combinations of these features are described by defined RAID levels Sun StorEdge 3000 Family arrays can support RAID 0 1 3 5 and 6 also called 1 0 For more detailed RAID definitions refer to RAID Levels on page 1 7 Descriptions of the read policies are as follows When you indicate a No Cache read policy the controller will not store data in the read cache Normal specifies that the current controller does not use Read ahead caching for the current drive Set the read policy to Read Ahead and the controller will read multiple adjacent blocks of data automatically This is most effective for applications with sequential reads Rebuilding a disk is the process of reconstructing the data on a disk before it failed Rebuilding can be done only in arrays with data redundancy such as RAID levels 1 3 5 6 or 1 0 See automatic re
181. ons on using the Solaris tip command 2 2 Sun StorEdge 3000 Family RAID Firmware 3 25 User s Guide June 2003 23 Redefining the Baud Rate for the tip Command This section describes the method for using the Solaris tip command to access the array Before you can use the tip command you must redefine the baud rate The tip command uses the 9600 baud specified in the etc remote file on the Solaris host by default The serial port of the array requires 38400 baud so you must edit the etc remote file and revise your use of the tip command to use the 38400 baud rate To edit the etc remote file for the 38400 baud rate perform the following steps Inthe etc remote file copy and edit the hardware line as follows Locate hardware dv dev term b br 9600 el Copy the hardware line into a blank line below the hardware line rename the hardware term as ss3000 and replace 9600 with 38400 The editing will look like the following line ss3000 dv dev term b br 38400 el 2 Save the file in the etc directory Use the replacement term ss3000 with the tip command 2 4 Using the t ip Command for Local Access to the Array You can access the RAID COM port DB9 connector on the controller module locally with the following commands Chapter 2 Accessing the Controller Firmware 2 3 3 Connect the RAID array COM port to the serial port of a Solaris workstation see FIGURE 2 1 tip s
182. oop once a device is removed or added without disrupting the physical connection to other devices A group is a new data object that allows multiple servers to be contained under a single category are similar in concept to domains and allow you to organize servers within Configuration Service Instead of a linear tree of all the managed servers the Configuration Service operator can organize the servers into like sets or groups In the case where many servers are present groups allow more icons to appear at the same time in the main Configuration Service window without scrolling Groups are not required You can configure Configuration Service for no groups and fifteen servers for example or for one group with ten servers underneath with an additional five at the top level Configuration Service allows any combination The number of groups permitted and the number of servers within a group is limited only by available array memory If a server is a member of a group and a user deletes that group from the group list box Configuration Service reassigns the servers in that group to the no group category Configuration Service automatically remaps the tree in the main window A drive in a RAID 1 or RAID 5 configuration that contains no data and acts as a standby in case another drive fails The ability of a field replaceable unit FRU to be removed and replaced while the array remains powered on and operational The process of writing a
183. or LD1 RAID 5 RAID 3 8 GB 6 GB Logical drive 0 Logical drive 1 FIGURE 1 2 Allocation of Drives in Logical Drive Configurations 1 4 Sun StorEdge 3000 Family RAID Firmware 3 25 User s Guide June 2003 You can divide a logical drive or logical volume into several partitions or use the entire logical drive as single partition Partition 0 Partition 1 Logical drive 0 RAID 5 8 GB nee Partition 2 Partition 0 Partition 1 Logical drive 1 ae RAID 3 6 GB Partition 2 FIGURE 1 3 Partitions in Logical Drive Configurations 2 GB 1 GB 5 GB 2 5 GB 1 5 GB 2 GB Each partition is mapped to LUNs under host FC or SCSI IDs or IDs on host channels Each FC or SCSI ID LUN is seen as an individual hard drive by the host computer Chapter 1 Basic RAID Concepts and Planning 1 5 ID 1 Logical drive 1 LUN 0 LUN 0 Logical drive 0 Partition 0 Partition 2 2 5 GB 5 GB Logical drive 0 LLUN1 EUN Logical drive 1 Partition 1 Partition 1 TOB 1 5 GB Logical drive 1 LuNn2 LUN 2 Logical drive 0 Partition 2 Partition 0 2 5 GB 2 GB FIGURE 1 4 Mapping Partitions to Host ID LUNs Logical drive 1 Logical drive 0 Kariono Partition 2 Logical drive 0 Partition 0 4 5 GB 5 GB 2 GB Host SCSI channel LUN5 F LUN4 M LUN3 M LUN2 f LUN1 FF LUNO v IDO 1 GB 1 5 GB 2 GB P K O Logical drive 0 Logical drive 1 Logical drive 1 Partition 1 Partition 1 Partition 2
184. or the HBA host bus adapter to recognize its presence To add the new partition into an existing logical drive operating environment support is needed In the following example the logical drive is originally composed of three member drives and each member drive has the capacity of 1 Gigabyte The Copy and Replace function has been performed on the logical drive and each member drive has been replaced by a new drive with the capacity of 2 Gigabytes The next step is to perform Expand logical drive function to utilize the additional capacity brought by the new drives 1 Select view and edit Logical drives from the Main Menu select the logical drive with its members copied and replaced and press Return 2 Select Expand logical drive in the submenu and press Return to proceed A confirming box is displayed 3 Proceed by pressing Return or entering any value no larger than the maximum drive expand capacity and press Return 3 28 Sun StorEdge 3000 Family RAID Firmware 3 25 User s Guide June 2003 Status O MN wSB erL _NANE icc View sopi drives lr Delete logical drive Partition logical drive logical drive Name logical drive Assignments xpand logical drive Maximum Available Drive Free Capacity 1000MB Maximum Drive Expand Capacity MB 1008 lt cucccece lt Bo ES o ETES A AS A oh Partition logical drive H A aE S i logical drive Name bsa drive Peau he Se Escend Lesicar De
185. own Status gt 3f24 SES C_ I_ UPS _ lt Vendor descriptor strings Device Not Available gt 3f21 SES C_ I_ Voltage sensor _ lt Vendor descriptor strings Device Not Supported gt 3f21 SES C_ I_ Voltage sensor _ lt Vendor descriptor strings Device Not installed gt C 8 Sun StorEdge 3000 Family RAID Firmware 3 25 User s Guide June 2003 3f21 SES C_ I_ Voltage sensor _ lt Vendor descriptor strings Device Unknown Status gt 3f21 SES C_ I_ Voltage sensor _ lt Vendor descriptor strings Device Not Available gt 3f21 SES C_ I_ Current sensor _ lt Vendor descriptor strings Device Not Supported gt 3f21 SES C_ I_ Current sensor _ lt Vendor descriptor strings Device Not installed gt 3f21 SES C_ I_ Current sensor _ lt Vendor descriptor strings Device Unknown Status gt 3f21 SES C_ I_ Current sensor _ lt Vendor descriptor strings Device Not Available gt Cao General Peripheral Device 321 Peripheral Device ALERT Power Supply Failure Detected 3 22 Cooling Fan Not Installed 3 22 Cooling Fan Failure Detected 3f24 Elevated Temperature Alert 3f24 UPS Power Failure Detected Appendix C Event Messages C 9 C 10 Sun StorEdge 3000 Family RAID Firmware 3 25 User s Guide June 2003 Glossary The glossary lists acronyms and defines RAID terms found throughout the documentation It also includes definitions of the operational states for disk drives logical d
186. p check time 8 24 enable UPS status 9 6 host LUN connections 8 29 logical drives 3 2 number of LUNs per host SCSI ID 8 32 password validation 8 16 RAID levels 3 2 SDRAM ECC 8 18 UPS alert notification level 9 7 Define Peripheral Device Active Signal command 9 7 Delete Channel SCSI ID command 7 11 Delete global local spare drive command 6 7 deleting drive entries 6 9 host channel SCSI ID 7 10 logical drive 3 15 partition of a logical drive 3 16 partition of logical drive 3 16 caution 4 3 SCSI drive table slot number 6 9 SCSIID 7 10 spare drive 6 7 global or local 6 7 detection idle drive failure 8 25 device supports removable media peripheral device parameters 8 35 Disconnect support 7 19 disconnecting support 7 18 SCSI target drive channel 7 18 disk access delay time 8 21 array parameters advanced config 8 25 documentation how book is organized Preface xiii drive configuring 1 22 entries adding 6 9 deleting 6 9 failed 1 16 checking 8 24 spare 1 16 spares global 1 17 local 1 17 drive channel commands 7 4 drive side parameters advanced config 8 18 Drive side SCSI Parameters command 8 19 8 20 DRV FAILED status 3 4 dual bus configurations 7 7 E ECC drives 1 9 ECC SDRAM function 8 18 error correction code drives 1 9 event logs viewing on screen 10 9 Execute Drive Testing command 6 28 Expand logical drive command 3 28 Index 2 Sun StorEdge 3000 Fami
187. p the logical configurations to host channel IDs LUNs I O requests from a host computer are directed to the primary or the secondary controller accordingly The total drive capacity can be grouped into several logical configurations and equally assigned to both controllers so that they share the workload The active to active configuration engages all array resources to actively maximize performance Users might also assign all logical configurations to one controller and let the other act as a standby An active to standby configuration is an available configuration but it is not usually selected When you assign all the logical configurations of drives to one controller the other controller stays idle and becomes active only when its counterpart fails Chapter 1 Basic RAID Concepts and Planning 1 19 1 6 1 6 1 1 6 2 Battery Operation A battery should be changed every two years if the unit is continuously operated at 25 degrees C and yearly if continuously operated at 35 degrees C or higher The FRU shelf life for a battery is three years Battery Status The battery LED on the far right side of the controller module is yellow if the battery is bad or is missing The LED blinks green if the battery is charging and is solid green when the battery is fully charged The initial firmware screen also displays the battery charging status at the top of the initial screen The BAT status displays somewhere in the range from BAT
188. page 1 20 a Battery Status on page 1 20 a Write Back Versus Write Through Cache Options on page 1 20 a RAID Planning Considerations on page 1 20 a Basic Configuration Overview on page 1 22 1 1 Ted Before You Begin The firmware of the Sun StorEdge 3000 Family arrays is software that is installed or flashed into the array hardware before it is shipped Later versions of the firmware can be downloaded and flashed at the customer site Different versions of controller firmware apply to various Sun StorEdge 3000 Family arrays Before downloading new firmware be sure to check the Readme file or appropriate release notes to make sure you are upgrading a supported version of the firmware for your array Determining Which Version of the RAID Firmware Applies to Your Array It is important that you run a version of firmware that is supported for your array Caution Before updating your firmware make sure that the version of firmware you want to use is supported for your array If you are downloading a Sun Microsystems patch that includes a firmware upgrade the Readme file associated with that patch tells you which Sun StorEdge 3000 family arrays support this firmware release 12 RAID Terminology Overview Redundant array of independent disks RAID is a storage technology used to improve the processing capability of storage systems This technology is designed to provide reliability in dis
189. pand a logical drive by copying and replacing all member drives with drives of higher capacity Refer to the following diagram The capacity of member drives are copied and replaced one by one onto drives of larger capacity 3 24 Sun StorEdge 3000 Family RAID Firmware 3 25 User s Guide June 2003 When all the member drives have been replaced execute the Expand logical drives function to make use of the unused capacity Note The new created area becomes a new partition RAID levels supported RAID 0 3 and 5 New New New Drive Drive Drive 4 GB 4 GB 4 GB T 228000 Copy and Replace each member drive 2 GB 4 GB 4 GB 4 GB FIGURE 3 5 Expansion by Copy amp Replace To copy and replace drives with drives of larger capacity perform the following steps From the Main Menu select view and edit Logical drives Select a target logical drive press Return and scroll down to choose copy and replace drive Press Return to proceed o o EE E View scsi drives Delete logical drive Partition logical drive logical drive Name logical drive Assignments xpand logical drive Scsi drives a reGenerate parit c py and replace drive ccucceccecho Chapter 3 Viewing and Editing Logical Drives 3 25 3 The member drives belonging to the selected logical drive will be listed Select the member drive the source drive which you want to replace with a larger one
190. previous menu screen 7 Select the drive indicated as CLONING by pressing Return 8 Select clone Failing drive again to view the progress Note You can identify the source drive and choose to View clone progress or Abort clone if you have selected the wrong drive Guic Stet onI To Size N Speed La DRV Status Vendor and Product 0 iso el 9 aof zm ojona y y ef ea af ome of onan o i A ojm ofn clone ource Drive anne D O View clone progress Abort clone A notification message informs you when the process is complete 21A2 LG 0 Logical Drive NOTICE CHL 1 ID 3 Copy and Replace Completed 9 Press ESC to clear the notification message and to see the SCSI drives status after the cloning process The source drive Channel 1 ID 5 remains as a member of logical drive 0 and the stand by drive Channel 1 ID 2 the local or global spare drive has become a CLONE drive Chapter 6 Viewing and Editing SCSI Drives 6 19 Siot oni o ezere Speea LG ORV Status Vendor end Product TD P 2 eo afam of ovine o o O i mes 2 1 219 ome of ntme Cs vise 31 wame i i E ae EE vise 2 a a9 zme none new ony pef s a ame none neno ooi p e e ao zor none new oe C elel ajej none nen Quic 6 11 2 Viewing the Status of a Cloning Operation While a cloning operation is underway you can examine its status including the oper
191. reated with Optimization for Sequential I O but the current setting is Optimization for Random I O GOOD The logical drive is in good condition DRV FAILED A drive member failed in the logical drive FATAL FAIL More than one drive member in a logical drive has failed REBUILDING The logical drive is rebuilding DRV ABSENT One of the disk drives cannot be detected INCOMELETE Not enough drives are available to support the current RAID configuration This status is displayed only when the array is powering up o Indicates the performance optimization set when the logical drive was initialized This cannot be changed after the logical drive is created Optimization for Sequential I O R Optimization for Random I O LN Total number of drive members in this logical drive SB Number of standby drives available for the logical drive This includes local spare and global spare disk drives available for the logical drive FL Number of failed disk drive member s in the logical drive Name Logical drive name user configurable 3 4 Creating Logical Drive s The RAID array is already configured with one or two RAID 5 logical drives and one global spare Each logical drive consists of a single partition by default This procedure is used to modify the RAID level and to add more logical drives if necessary In this procedure you configure a logical drive to contain one or more hard drives based on the desired RAID level an
192. report available so that the host can prompt the user to back up data on the failing drive Not all failures can be predicted however SMART predictability is limited to the attributes the drive can monitor that are selected by the device manufacturer based on the attribute s ability to contribute to the prediction of degrading or fault conditions Although SMART attributes are drive specific a variety of typical characteristics can be identified Head flying height Data throughput performance Spin up time Reallocated sector count Seek error rate Seek time performance Spin try recount Drive calibration retry count How Sun StorEdge 3000 Family Arrays Use SMART Sun StorEdge 3000 Family arrays implement the ANSI SCSI Informational Exception Control IEC document X3T10 94 190 standard Sun StorEdge 3000 Family array firmware supports four manual selections related to SMART function in firmware m Disable SMART functions are not activated m Detect Only SMART functions are enabled The controller sends a command to enable all the drives SMART functions If a drive predicts a problem the controller reports the predicted problem as an entry in the event log m Perpetual Clone The controller sends a command to enable all the drives SMART functions If a drive predicts a problem the controller reports the predicted problem as an entry in the event log The controller then clones the drive whose failure has been predicted i
193. rive Information To view the SCSI drive information such as the revision number serial number and disk capacity of an individual drive perform the following steps lt Main Menu gt Quick installation view and edit Logical drives view and edit logical Volumes and edit Host luns ew and edit View drive information add Local spare drive add Global spare drive 3 Delete global local spare drive i Scan scsi drive i set slot Number Vendor and Product ID ON LINE HITACHI DK31Cd Revision Number add drive Entry Serial Number ID009863 Clear drive status Disk Capacity lt blocks gt 0144410879 Identifying scsi drive Fibre Port Name S500E10015B73 J clone Failing drive Redundant Loop ID 16 scsi drive Utilities FIGURE 6 1 View Drive Information 1 On the Main Menu select view and edit scsi Drives and press Return 2 Highlight the SCSI drive you want to view and then press Return 3 Select the view drive information command The revision number serial number and disk capacity counts in block one block refers to 512K of the drive will be displayed on the screen Chapter 6 Viewing and Editing SCSI Drives 6 5 6 5 Viewing the Connected Drives Prior to configuring disk drives into a logical drive it is necessary to understand the status of physical drives in your enclosure To view the list of available SCSI drives per
194. rive and storage partition to a host ID LUN Refer to Mapping Logical Drive Partitions to Host LUNs on page 5 1 The host adapter recognizes the system drives after reinitializing the host bus 5 Optionally optimize controller s parameters for your applications For details on optimization modes refer to Optimization Modes Caching Parameters on page 8 2 6 Save your configuration profile as a file Note The controller is totally independent from host operating environment The host operating environment cannot determine whether the attached storage is a physical hard drive or the logical drives created by the RAID controller 1 22 Sun StorEdge 3000 Family RAID Firmware 3 25 User s Guide June 2003 CHAPTER 2 Accessing the Controller Firmware The RAID controller firmware can be configured via a workstation running a terminal emulation program or on a VT 100 compatible terminal Topics covered in this chapter include Setting Up the Serial Port Connection on page 2 1 Accessing the Firmware Application From a Solaris Host on page 2 2 Redefining the Baud Rate for the tip Command on page 2 3 The Controller Firmware Initial Screens on page 2 4 Main Menu on page 2 5 Quick Installation Reserved on page 2 5 Upgrading Firmware on page 2 6 21 Setting Up the Serial Port Connection The RAID controller can be configured by means of a Solaris workstation run
195. rives and redundant controllers Acronyms ANSI American National Standards Institute CH Channel CISPR International Special Committee on Radio Interference EMU Event Monitoring Unit FC AL Fibre Channel Arbitrated Loop FC AL is implemented as either a loop or a Fabric A loop can contain up to 126 nodes accessible through only one or two servers FRU Field replaceable unit GB Gigabyte 1 000 000 000 one billion bytes GBIC Gigabit Interface Converter A hot swappable input output device that plugs into a Gigabit Ethernet port or Fibre Channel HBA Host bus adapter ID Identifier number IEC International Electrotechnical Commission JBOD Expansion Unit LAN LD Just a Bunch of Disks a Sun StorEdge unit with drives and no controllers Local area network Logical drive Glossary 1 LUN LVD MB NVRAM PID RAID SAN SCSI SES SID SMART SMTP SNMP WWN Glossary 2 Logical unit number A logical unit number LUN is a unique identifier used on a SCSI channel that enables a host to differentiate between separate devices A low noise low power and low amplitude signaling technology that enables data communication between a supported server and storage devices LVD signaling uses two wires to drive one signal over copper wire and requires a cable that is no longer than 25 meters 82 ft Megabyte 1 000 000 bytes or characters of data Non volatile random access memory A memory unit equipped
196. rmware 3 25 User s Guide June 2003 8 5 3 User applies forced manual rebuild Any local spare drive assigned to logical drive Yes Rebuild using the local spare drive Any global spare drive assigned to logical drive Yes Rebuild using the global spare drive Has the failed drive been replaced Rebuild using the swapped drive Z FIGURE 8 2 Manual Rebuild Concurrent Rebuild in RAID 1 0 RAID 1 0 allows multiple drive failure and concurrent multiple drive rebuild Drives newly swapped must be scanned and set as local spares These drives will be rebuilt at the same time you do not need to repeat the rebuilding process for each drive Chapter 8 Viewing and Editing Configuration Parameters 8 11 8 6 gt Identifying a Failed Drive for Replacement If there is a failed drive in the RAID 5 logical drive replace the failed drive with a new drive to keep the logical drive working To identify a failed drive refer to Identifying a Failed Drive for Replacement on page 6 11 Caution If when trying to remove a failed drive you mistakenly remove the wrong drive you will no longer be able to access the logical drive because you have incorrectly failed another drive Restoring Your Configuration NVRAM From a File If you have saved a configuration file and want to apply the same configuration to another array or reapply it to the array t
197. rmware 3 25 User s Guide June 2003 m The surviving controller sends event messages announcing the controller failure of the other controller A Bus Reset Issued warning message is displayed for each of the channels In addition a Redundant Controller Failure Detected alert message is displayed If one controller in the redundant controller configuration fails the surviving controller temporarily takes over for the failed controller until it is replaced A failed controller is managed by the surviving controller which disables and disconnects from its counterpart while gaining access to all the signal paths The surviving controller then manages the ensuing event notifications and takes over all processes It is always the primary controller regardless of its original status and any replacement controller afterward will assume the role of the secondary controller The failover and failback processes are completely transparent to the host Controllers are hot swappable and replacing a failed unit takes only a few minutes To maintain your redundant controller configuration replace the failed controller as soon as possible 8 9 8 5 1 Rebuilding Logical Drives This section describes automatic and manual procedures for rebuilding logical drives Automatic Logical Drive Rebuild Rebuild with Spare When a member drive in a logical drive fails the controller first examines whether there is a local spare drive as
198. s 512 Gbyte When creating a logical drive that is greater than these limits an error message is displayed Database and Transaction Based Applications Database and transaction based applications include an SQL server Oracle server Informix and other database services Transaction size ranges from 2K to 4K These applications keep each transaction small so that I O transfers are not clogged by one large transaction Transaction based applications do not read or write data in a sequential order Instead access to data occurs randomly Transaction based performance is usually measured in I O operations per second or IOPS Video Recording Playback and Imaging Applications Video playback video post production editing and similar applications applications read and write large files to and from storage in sequential order The size of each I O can be 128K 256K 512K or up to 1 MB Performance is measured in MB per second When an array works with applications such as video or image oriented applications the application reads and writes data to and from the drive as large block sequential files instead of small block randomly accessed files Optimization for Random I O 32K block size The logical drive cache memory and other controller parameters are adjusted for the use of database transaction processing applications Chapter 8 Viewing and Editing Configuration Parameters 8 3 8 1 5 8 1 6 Optimization for Sequentia
199. s3000 dev ttyb cntrl 1 to refresh the screen 2 3 2 4 The Controller Firmware Initial Screens You will see the following initial controller screen when you first access the RAID controller firmware via the controller COM port of Ethernet port To complete the connection to your management console select the VT100 terminal mode or the appropriate mode for your communications software and press Return Controller Name Cache Status z d Cursor Bar pE Graphic ANSI Color Mode how Transfer Rate Show Cache Status Keys to Use Cursor Bar Move the cursor bar to a desired item and press Return to select Controller Name Identifies the type of controller Transfer Rate Indicator Indicates the current data transfer rate Gauge Range Use or keys to change the gauge range in order to view the transfer rate indicator Cache Status Indicates the current cache status PC Graphic ANSI Mode Enters the Main Menu and operates in ANSI mode Sun StorEdge 3000 Family RAID Firmware 3 25 User s Guide June 2003 VT 100 Mode PC Graphic ANSI Color Mode Show Transfer Rate Show Cache Status Enters the Main Menu and operates in VT 100 mode Enters the Main Menu and operates in ANSI color mode Press Return on this item to show the cache status and transfer rate 2 6 Main Menu After you have selected the mode on the initial screen and pressed Return on the
200. sS amp o SUN microsystems Sun StorEdge 3000 Family RAID Firmware 3 25 User s Guide Sun StorEdge 3310 SCSI Array Sun Microsystems Inc 4150 Network Circle Santa Clara CA 95054 U S A 650 960 1300 Part No 816 7296 13 June 2003 Revision A Submit comments about this document at http www sun com hwdocs feedback Copyright 2002 2003 Dot Hill Systems Corporation 6305 El Camino Real Carlsbad California 92009 USA All rights reserved Sun Microsystems Inc and Dot Hill Systems Corporation may have intellectual property rights relating to technology embodied in this product or document In particular and without limitation these intellectual property rights may include one or more of the U S patents listed at http www sun com patents and one or more additional patents or pending patent applications in the U S and other countries This product or document is distributed under licenses restricting its use copying distribution and decompilation No part of this product or document may be reproduced in any form by any means without prior written authorization of Sun and its licensors if any Third party software is copyrighted and licensed from Sun suppliers Parts of the product may be derived from Berkeley BSD systems licensed from the University of California UNIX is a registered trademark in the U S and in other countries exclusively licensed through X Open Company Ltd Sun Sun Microsystems the Sun log
201. se your performance Maximum concurrent host LUN connection nexus in SCSI is the arrangement of the controller internal resources for use with a number of the current host nexus For example you can have four hosts A B C and D and four host IDs LUNs ID 0 1 2 and 3 in a configuration where host A accesses ID 0 one nexus host B accesses ID 1 one nexus host C accesses ID 2 one nexus host D accesses ID 3 one nexus These connections are all queued in the cache and are called four nexus If there is I O in the cache with four different nexus and another host I O comes with a nexus different than the four in the cache for example host A accesses ID 3 the controller returns busy This occurs with the concurrent active nexus if the cache is cleared it will accept four different nexus again Many I O operations can be accessed via the same nexus Chapter 8 Viewing and Editing Configuration Parameters 8 29 8 12 3 lt Main Menu gt Quick installation view view Maximum Queued 170 Count view Host SCS 8 view Mi N view Numb ags Reserved Peripheral Device Lype Parameters Host Cylinder Head Sector Mapping Configuration Fibre Connection Option Loop only Host side Parameters Drive side Parameters Disk Array Parameters Redundant Controller Parameters Controller Parameters To change the default number of nexus for a host the default setting is 4 perform the following s
202. sible whenever a drive failure occurs a A logical drive should be composed of physical drives from different drive channels Compose the logical drive with drives from different drive channels to avoid the fatal loss of data caused by bus failure m Partitioning the logical drive or partitioning the logical volume Once a logical drive has been divided into partitions the logical drive can no longer be used as a member of a logical volume The member logical drives of a logical volume should have one partition only with the entire capacity If you want to use a partitioned logical drive for a logical volume delete the other partitions in this logical drive until only one partition remains that uses the entire logical drive capacity Caution Deleting the partition of the logical drive will also destroy all the data Data should be backed up to somewhere else before making partition configuration When a logical drive is used as a member to a logical volume this logical drive can no longer be partitioned in View and Edit Logical Drives Instead the logical volume can be partitioned in View and Edit Logical Volume The procedure for partitioning a logical volume is the same as that for partitioning a logical drive After the logical volume has been partitioned map each partition to a host ID LUN to allow the host computer to utilize the partitions as individual drives Chapter 4 Viewing and Editing Logical Volumes 4
203. signed to this logical drive If yes it automatically starts to rebuild the data of the failed disk to it If there is no local spare available the controller searches for a global spare If there is a global spare it automatically uses it to rebuild the logical drive Failed Drive Swap Detect If neither a local spare drive nor a global spare drive is available and the Periodic Auto Detect Failure Drive Swap Check Time is disabled the controller does not attempt to rebuild unless you apply a forced manual rebuild To enable this feature go to the Main Menu choose view and edit Configuration parameters then select Drive side SCSI Parameters and select Periodic Auto Detect Failure Drive Swap Check Time Chapter 8 Viewing and Editing Configuration Parameters 8 7 When the Periodic Auto Detect Failure Drive Swap Check Time is Enabled that is a check time interval has been selected the controller detects whether or not the failed drive has been swapped by checking the failed drive s channel ID Once the failed drive has been swapped the rebuild begins immediately Note This feature requires system resources and can impact performance If the failed drive is not swapped but a local spare is added to the logical drive the rebuild begins with the spare For a flowchart of automatic rebuild see FIGURE 8 1 8 8 Sun StorEdge 3000 Family RAID Firmware 3 25 User s Guide June 2003
204. sk failure data is lost In block striping the total disk capacity is equivalent to the sum of the capacities of all drives in the array This combination of drives appears to the system as a single logical drive RAID 0 provides the highest performance It is fast because data can be simultaneously transferred to and from every disk in the array Furthermore read and writes to separate drives can be processed concurrently 1 10 Sun StorEdge 3000 Family RAID Firmware 3 25 User s Guide June 2003 L323 Logical drive Eo 8 Ca FIGURE 1 7 RAID 0 Configuration RAID 1 RAID 1 implements disk mirroring where a copy of the same data is recorded onto two drives By keeping two copies of data on separate disks data is protected against a disk failure If at any time a disk in the RAID 1 array fails the remaining good disk copy can provide all of the data needed thus preventing downtime In disk mirroring the total usable capacity is equivalent to the capacity of one drive in the RAID 1 array Thus combining two 1 Gbyte drives for example creates a single logical drive with a total usable capacity of 1 Gbyte This combination of drives appears to the system as a single logical drive Note RAID 1 does not allow expansion RAID levels 3 and 5 permit expansion by adding drives to an existing array Chapter 1 Basic RAID Concepts and Planning 1 11 1 3 4 Logical drive Physical disks Blo
205. specific pattern to all data blocks on all drives in a logical drive This process overwrites and destroys existing data on the disks and the logical drive Initialization is required to make the entire logical drive consistent at the onset Initialization ensures that any parity checks performed in the future will execute correctly Sun StorEdge 3000 Family RAID Firmware 3 25 User s Guide June 2003 logical drive LUN mapping LUN masking mirroring RAID 1 N port out of band parity check partner group physical array A section of disk storage space also referred to as a LUN that is presented to the host operating environment as a single physical drive A logical drive may be located on one or more physical drives Each array controller can manage one to eight logical drives The ability to change the virtual LUN as presented to the server from storage This enables such benefits as the ability of a server to boot from the SAN without requiring of a local disk drive Each server requires LUN 0 to boot The characteristic that enables an administrator to dynamically map an HBA to a specified LUN This provides an individual server or multiple servers access to an individual drive or to multiple drives and prohibits unwanted server access to the same drives Data written to one disk drive is simultaneously written to another disk drive If one disk fails the other disk can be used to run the array and reconstruct the fai
206. ss Return Chapter 8 Viewing and Editing Configuration Parameters 8 17 3 Type in the value 0 to automatically read the chassis serial number from the midplane or type the hex value for the original serial number of the chassis used when the midplane has been replaced The value 0 is immediately replaced with the hex value of the chassis serial number A non zero value should only be specified if the chassis has been replaced but the original chassis serial number must be retained this feature is especially important in a Sun Cluster environment to maintain the same disk device names in a cluster 4 To implement the revised parameter value select system Functions on the Main Menu select Reset Controller and press Return 8 9 5 SDRAM ECC Function Reserved The default setting is always set to Enabled Do not use this setting It is reserved for specific troubleshooting methods and should only be used by qualified technicians 8 10 Drive side SCSI Parameters The configurable drive side SCSI parameters are a SCSI Motor Spin Up Reserved m SCSI Reset at Power Up Reserved m Disk Access Delay Time a SCSI I O Timeout a Maximum Tag Count Tag Command Queuing m SAF TE and SES Enclosure Monitoring m SAF TE and SES Enclosure Monitoring m Auto Detect Failure Drive Swap Check Time To access the drive side parameter list follow the next two steps 1 Select view and edit Configuration parameters on
207. stems brought online when a failure is detected Many arrays provide fault tolerance by using RAID architecture to give protection against loss of data when a single disk drive fails Using RAID 1 mirroring RAID 3 or 5 striping with parity or RAID 6 or 1 0 mirroring and striping techniques the array controller can reconstruct data from a failed drive and write it to a standby or replacement drive Glossary 3 fault t Fibre olerant logical drive Fibre Channel Channel HBA fibre hubs groups hot spare hot swappable Glossary 4 initialization A logical drive that provides protection of data in the event of a single drive failure by employing RAID 1 3 5 or 6 also known as RAID 1 0 A cost effective gigabit communications link deployed across a wide range of hardware Fibre channel adapter of a host computer server or workstation An Arbitrated Loop Hub is a wiring concentrator Arbitrated means that all nodes communicating over this Fibre loop are sharing a 100 MB per second segment Whenever more devices are added to a single segment the bandwidth available to each node is further divided A loop configuration allows different devices in the loop to be configured in a token ring style With a Fibre Hub a Fibre loop can be re arranged in a star like configuration for the Hub itself contains port bypass circuitry that forms an internal loop inside Bypass circuits can automatically reconfigure the l
208. support and press Return A confirmation message is displayed apo Stet Cnt 10 ereer kerna ParityChk inconnect TasCount il af of o tae ene ot E xfer Clock maximum xfer Width Parit heck Disconnect support Enabled Def 32 R Di i r Enabled Def 32 Enabled Def 32 Enabled Def 32 7 18 Sun StorEdge 3000 Family RAID Firmware 3 25 User s Guide June 2003 7 10 6 Select Yes in the dialog box that follows to confirm the setting Maximum Tag Count The maximum tag count is the maximum number of tags that can be sent to each drive at the same time A drive has a built in cache that is used to sort all of the I O requests tags that are sent to the drive enabling the drive to finish the requests more quickly The cache size and maximum number of tags varies between different brands and models of drive Use the default setting of 32 Changing the maximum tag count to Disable causes the internal cache of the drive to not be used It is possible to configure command tag queuing with a maximum tag count of 128 SCSI and 256 FC From the Main Menu select view and edit Scsi channels and press Return Select maximum Tag count and press Return A list of available tag count numbers is displayed Select a number and press Return A confirmation message is displayed Quic Stet eni 10 erreti Xf Hid Par tyChk Disconnect Tasco al elof of ae trabia _erbied ber
209. support offers the following available applications a RAID 1 0 This is a standard feature of Sun StorEdge 3000 Family RAID controllers It has the benefits of RAID 1 high availability and RAID 0 enhanced I O performance through striping Simply choose four or more drives for a RAID 1 logical drive and the RAID controller will implement RAID 1 0 automatically a RAID 3 0 A logical volume itself is a multilevel RAID implementation A logical volume is composed of one or several logical drives with data striping RAID 0 A logical volume with several RAID 3 member logical drives can be considered as a RAID 3 0 or RAID 53 as defined in The RAID Book from The RAID Advisory Board a RAID 5 0 A logical volume with several RAID 5 member logical drives a RAID 5 1 Requires multiple RAID controllers In a RAID 5 1 array each layer 1 RAID controller handles one RAID 5 logical drive and a layer 2 RAID controller performs RAID 1 mirroring function to the virtual disks controlled by all of the layer 1 RAID controllers 4 4 Sun StorEdge 3000 Family RAID Firmware 3 25 User s Guide June 2003 a RAID 5 5 Requires multiple RAID controllers In the RAID 5 5 array each layer 1 RAID controllers handles one to several RAID 5 logical drives and a layer 2 RAID controller performs RAID 5 to the virtual disks provided by all of the layer 1 RAID controllers a RAID 30 Logical volume with RAID 3 logical drives a RAID 5
210. te Test and press Return 6 26 Sun StorEdge 3000 Family RAID Firmware 3 25 User s Guide June 2003 uic o ize pee _ atus endor an roduc Quic Slot Ch1 Size MB S d LG_DRV Stat Vend d Product ID IBM DDRS 3456 D View drive information add Local spare drive IBM DDRS 3456 D add Global spare drive Scan scsi drive IBM DDRS 3456 D set slot Number add drive Entry IBM DDRS 3456 D Identify scsi drive T le ur gnal IBM DDRS 3456 D IBM DDRS 3456 D NON NEW DRY 1BM DDRS 34562D Eee aaa 1 ON LINE IBM DDRS 3456 D SCSI Drive Low Level Format Quic Slot Ch1 ID Size MB LG_DRV Vendor and Product ID IBM DDRS 34560D view View drive information add Local spare drive IBM DDRS 34562D a view C WARNING Channel 2 ID 6 SCSI Drvie 34560D view All data on the disk will be erased syst 34560D view tt Low Level Format Disk view 34560D Yes LNO Drive Low Leve CTs Read Write Test 1 ON LINE IBM DDRS 34562D Caution All data on the disk drive will be destroyed when you use this command The SCSI disk drive on which a low level disk format will be performed cannot be a spare drive local or global nor a member drive of a logical drive The SCSI Drive Low level Format option appears only if the drive status is a NEW or USED drive Select view and edit scsi Drives on the Main Menu Select a new or used drive that the utility is to performed on and press Return
211. te requests being performed This can cause some operating environments or host computers to act abnormally Disable the SCSI Reset at Power Up menu option to avoid this situation SCST OM Enable SCSI Reset at Power Up Yes No conds Time 5S seconds Periodic Auto Detect Failure Drive Swap Check Time Disabled Drive Predictable Failure Mode SMART Detect Only Fibre Channel Dual Loop Enabled D S M P Drive side Parameters Dis Array Parameters Redundant Controller Parameters Controller Parameters Select view and edit Configuration parameters on the Main Menu Select Drive side SCSI Parameters and then press Return The Drive side SCSI parameters menu is displayed Select SCSI Reset at Power Up and press Return Select Yes in the dialog box that follows to confirm the setting Power off all hard drives and controller and power them on again All the hard drives will not spin up at this time The controller will then spin up the hard drives one by one at a four second interval 8 20 Sun StorEdge 3000 Family RAID Firmware 3 25 User s Guide June 2003 8 10 3 8 10 4 Disk Access Delay Time This function sets the delay time before the controller tries to access the hard drives after power on The default is 15 seconds The range is No Delay to 75 seconds SCSI Motor Spin Up Disabled SCSI Reset at Power Up Disabled is No Delay 2 seconds
212. teps From the Main Menu select view and edit Configuration parameters select Host side SCSI Parameters and then press Return Select Max Number of Concurrent Host LUN Connection and then press Return A list of available selections is displayed Select an item and press Return Select Yes in the dialog box that follows to confirm the setting Number of Tags Reserved for Each Host LUN Connection This function is used to modify the tag command queuing on the Host LUN connection The default setting is 32 tags with a predefined range of 1 to 256 Unless it is necessary the default factory setting should not be changed Each nexus has 32 the default setting tags reserved This setting ensures that the controller accepts at least 32 tags per nexus The controller will be able to accept more than that as long as the controller internal resources allow it if the controller does not have enough internal resources at least 32 tags can be accepted per nexus 8 30 Sun StorEdge 3000 Family RAID Firmware 3 25 User s Guide June 2003 x fain menu 7 Quick installation view view Maximum Queued I70 Count 256 view LUNs per Host SCSI ID view Max Number of Concurrent Host LUN Connect ion Def 4 view De Parameters Host PR inder Head toctor Mapping Configuration Fibre Connection Option Loop only v s v v REE Parameters Drive side Parameters Disk Array Parameters R
213. the Main Menu 2 Select Drive side SCSI Parameters and then press Return The Drive side SCSI Parameters menu is displayed 8 18 Sun StorEdge 3000 Family RAID Firmware 3 25 User s Guide June 2003 8 10 1 Quic Up Disab view Disk Access Delay Time 2a seconds view SCSI I 0_Timeout 1 seconds view Maximum Tag Count 32 view Periodic Drive Check Time 10 seconds Periodic SAF TE and SES Device Check Time 5 seconds v Periodic Auto Detect Failure Drive Swap Check Time Disabled si C Drive Predictable Failure Mode SMART Detect Only vi C Fibre Channel Dual Loop Enabled v Drive side Parameters Disk Array Parameters Redundant Controller Parameters Controller Parameters SCSI Motor Spin Up Reserved Motor Spin Up Disabled R Enable SCSI Motor Spin Up nds B ves No seconds Periodic SAF TE and SES Device Check Time S_seconds Periodic Auto Detect Failure Drive Swap_Check Time Disabled Drive Predictable Failure Mode SMART Detect Only Fibre Channel Dual Loop Enabled Drive side Parameters Dis Array Parameters Redundant Controller Parameters Controller Parameters Do not use the SCSI Motor Spin Up menu option It is reserved for specific troubleshooting methods and should only be used by qualified technicians The SCSI spin up decides how the SCSI drives in a disk array are started When the power supply is unable to provide sufficient current for t
214. tible power supply enable status 9 6 UPS enable status 9 6 fail signal 9 7 status 9 6 UPS power fail signal 9 7 UPS status 9 6 USED DRV drive status 6 3 V Verification on LD Initialization Writes Disabled command 8 27 verification on writes 8 27 view and edit Configuration parameters command 8 5 8 6 view and edit Event logs command 10 9 view and edit Host luns command 5 8 view and edit logical drives command 3 3 3 15 6 20 view and edit logical Volumes command 4 5 view and edit scsi drives command 6 2 6 4 view peripheral device status command 9 2 9 8 voltage check status 9 8 volume definition Glossary 7 VT 100 connection and setup 2 1 Index 8 Sun StorEdge 3000 Family RAID Firmware 3 25 User s Guide June 2003 Ww warnings quick installation 2 5 world wide name definition Glossary 2 write error avoiding 8 27 write policy definition Glossary 7 write back cache definition Glossary 7 disabling 8 6 enabling 8 6 write through disabling 8 6 enabling 8 6 write through cache definition Glossary 8 Index 9 Index 10 Sun StorEdge 3000 Family RAID Firmware 3 25 User s Guide June 2003
215. tion is completed use the Esc key to return to the Main Menu 7 Select view and edit Logical drives to view details of the created logical drive 3 5 Changing a Logical Drive Controller Assignment By default logical drives are automatically assigned to the primary controller If you assign half the drives to the secondary controller the maximum speed and performance will be somewhat improved due to the redistribution of the traffic To balance the workload between both controllers you can distribute your logical drives between the primary controller displayed as the Primary ID or PID and the secondary controller displayed as the Secondary ID or SID After a logical drive has been created it can be assigned to the secondary controller Then the host computer associated with the logical drive can be mapped to the secondary controller see Mapping Logical Drive Partitions to Host LUNs on page 5 1 1 To change a logical drive controller assignment select view and edit Logical drives from the Main Menu and press Return 2 Select logical drive assignments and press Return 3 10 Sun StorEdge 3000 Family RAID Firmware 3 25 User s Guide June 2003 LG ID L RAID Size MB Status 0 LN SB FL NAME P 6281CB39 NA RATDS GOOD S 3 8 BF View scsi drives Delete logical drive Partition logical drive m logical drive Name logical drive Assignments Redundant Controller Logical
216. tor command 7 12 SDRAM ECC 8 18 default 8 18 sector mapping 8 32 sequential I O optimization maximum size 8 3 serial port connection and setup 2 1 serial port parameters 2 2 SES definition Glossary 2 Set Peripheral Device Entry command 9 5 set slot Number command 6 10 setting a new password 10 3 single bus configurations 7 7 slot number assigning to empty slot 6 9 deleting 6 9 SCSI target drive 7 16 setting 6 8 Solaris reset baud rate 2 3 spanning definition Glossary 6 Index 7 spare local for logical drive 3 8 spare drives 1 21 8 11 assigning 6 4 deleting 6 7 global 1 16 creating 6 4 local 1 16 explained 6 4 logical volume 4 3 standby drive definition Glossary 6 STAND BY drive status 6 3 status logical drive 3 3 peripheral device 9 2 temperature 9 8 UPS 9 6 voltage 9 8 stripe size definition Glossary 7 striping definition Glossary 7 sync transfer clock 7 13 system functions 10 1 controller resetting 10 5 shutting down 10 6 muting beeper 10 2 password changing 10 4 disabling 10 4 saving NVRAM to disk 10 8 setting new password 10 3 T tag count maximum 7 19 8 22 temperature check status 9 8 terminator SCSI channel 7 12 tip command 2 3 transfer clock maximum synchronous 7 17 transfer clock speed options 7 15 setting 7 13 transfer rate indicator 2 4 transfer speed setting 7 14 transfer width maximum 7 17 setting 7 14 U uninterrup
217. triping terminator volume write back cache write policy This is the amount of data in kilobytes that is striped across each physical drive in a logical drive The values are in increments of 8 kilobytes and range from 8 to 64 kilobytes Generally large stripe sizes are more effective for arrays with primarily sequential reads To change the stripe size on an existing drive you need to back up your data redefine the stripe size reconfigure the storage and restore all the data The storing of sequential blocks of incoming data on all the different SCSI drives in a logical drive For example if there are three SCSI drives in a logical drive data will be stored as follows partial listing block 1 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 This method of writing data increases the disk array throughput because multiple drives are working simultaneously retrieving and storing RAID 0 3 5 and 6 or 1 0 all use striping A part used to end a SCSI bus Terminators prevent energy from reflecting back into a cable plant by absorbing the radio frequency signals Also called a logical unit number or LUN a volume is one or more drives that can be grouped into a unit for data storage A cache writing strategy in which the array controller receives the data to be written to disk stores it in the memory buffer and immediately sends the host operating enviro
218. uential I O The random I O optimization mode reads and writes data in small 32K blocks while sequential optimization mode reads and writes data in larger 128K blocks in order to transfer information more efficiently for the kinds of applications most often employed The types of applications appropriate for random and sequential optimization are described in Database and Transaction Based Applications on page 8 3 and Video Recording Playback and Imaging Applications on page 8 3 Optimization Limitations There are two limitations that apply to the optimization modes m One optimization mode must be applied to all logical units in a RAID array m Once the optimization mode is selected and data written in logical units the only way to change the optimization mode is to back up all data to another location delete all logical configurations of drives reconfigure the logical drive configuration with the new optimization mode and reboot the array This limitation results from the redundant configuration of controllers Data inconsistency can occur when a controller configured with one optimization mode is used to replace a failed controller with a different mode 8 2 Sun StorEdge 3000 Family RAID Firmware 3 25 User s Guide June 2003 8 1 2 8 1 3 8 1 4 Note The maximum allowable size of a logical drive optimized for Sequential I O is 2 Tbyte The maximum allowable size of a logical drive optimized for Random I O i
219. um tag count of 32 To change the default setting perform the following steps Select view and edit Configuration parameters on the Main Menu Select Drive side SCSI Parameters and then press Return The Drive side SCSI Parameters menu is displayed Select Maximum Tag Count and press Return A list of available tag count numbers is displayed Select a number and press Return Select Yes in the dialog box that follows to confirm the setting For the changes to take effect select system Functions select Reset Controller and press Return SAF TE and SES Enclosure Monitoring SCSI Motor Spin Up Disabled SCSI Reset at Power Up Disabled Disk Access Delay Time 60 seconds SCSI I 0_Timeout 10 seconds Maximum T Count 32 eriodic P to Detect Failure Drive Swap ec ime Drive Predictable Failure Mode SMART Detect Only Fibre Channel Dual Loop Enabled Drive side Parameters Dis Array Parameters Redundant Controller Parameters seconds Controller Parameters If there are remote devices within your RAID enclosure monitored via SAF TE S E S use this function to decide at what interval the controller will check the status of these devices Select Periodic SAF TE and SES Device Check Time and press Return Move the cursor to the desired interval then press Return Select Yes in the dialog box to confirm the setting Chapter 8 Viewing and Editing Configurat
220. un StorEdge 3000 Family RAID Firmware 3 25 User s Guide June 2003 21A1 LG 0 Logical Drive NOTICE CHL 1 ID 3 Starting Clone 5 Press Esc to proceed Quic Stot chi 10 SizeW6 Speea LG_ORV Status Vendor and Product 10 i A mT ON LINE Drive Cloning 28 Completed NONE NEW DRY ee e The cloning process is indicated by a status bar 6 Select the drive indicated as CLONING by pressing Return Note To quit the status bar press ESC to return to the table of the connected drives sief 2 eo af 2m of ove a 2 E E E of e SSCS EE e E E V ource Drive anne D O View clone progress Abort clone clone Failing drive 7 Select clone Failing drive again to view the current status Note You can identify the source drive and choose to View clone progress or Abort clone if you selected the wrong drive When the process is completed the following message is displayed 21A2 LG 0 Logical Drive NOTICE CHL 1 ID 3 Copy and Replace Completed Chapter 6 Viewing and Editing SCSI Drives 6 17 8 Press Esc to proceed 6 11 1 2 Perpetual Clone Data on the source drive the drive with a predicted error or any selected member drive will be cloned to the standby spare but the spare will not become the new source drive The standby spare drive will clone the source drive member drive with predicted error or any selected dr
221. un StorEdge 3000 Family RAID Firmware 3 25 User s Guide June 2003 LED is not lit AIO O Flashing All Drive LEDs Except a Selected Drive LED 6 11 6 11 1 Fault Protection Measures With the maturity of industry standard technologies such as Self Monitoring Analysis and Reporting Technology SMART disk drive failures can sometimes be predicted before they happen Encountering drive bad block reassignments is one common predictor of a drive that is about to fail System administrators can decide when to substitute a healthy drive for a drive showing symptoms of impending failure This section discusses manual and automated procedures for averting disk drive failures Cloning a Failing Drive To assist fault prevention a system administrator can manually clone a disk drive that shows signs of failing choosing a convenient time when system performance will not be adversely affected The Clone Failing Drive procedure is performed under the following conditions m Replacing drives about to fail either detected by SMART or notified by the controller a Manually replacing and cloning drive data from any drive to a new drive There are two options for cloning a failing drive m Replace after Clone Chapter 6 Viewing and Editing SCSI Drives 6 15 m Perpetual Clone These options are described in this section 6 11 1 1 Replacing After Clone Data on the sourc
222. un support at 800 USA4SUN To obtain international technical support contact the sales office of each country at www sun com service contacting sales html xvi Sun StorEdge 3000 Family RAID Firmware 3 25 User s Guide June 2003 Accessing Sun Documentation All Sun StorEdge 3310 SCSI array documentation is available online in both PDF and HTML format at the following location http www sun com products n solutions hardware docs Network_Storage_Solutions Workgroup 3310 You can view print or purchase a broad selection of Sun documentation at http www sun com documentation You can order printed copies of manuals for the Sun StorEdge 3310 SCSI array at http corppub iuniverse com marketplace sun 508 Accessibility Features The Sun StorEdge documentation is available in 508 compliant HTML files that can be used with assistive technology programs for visually impaired personnel These files are provided on the Documentation CD for your product as well as on the websites identified in the previous Accessing Sun Documentation section Additionally the software and firmware applications provide keyboard navigation and shortcuts which are documented in the user s guides Sun Welcomes Your Comments Sun is interested in improving its documentation and welcomes your comments and suggestions You can submit your comments by going to http www sun com hwdocs feedback Please include the title and part number of
223. ve replace the failed drive with a new drive to keep the logical drive working To identify a failed drive see Identifying a Failed Drive for Replacement on page 8 12 Caution If when trying to remove a failed drive you mistakenly remove the wrong drive you will no longer be able to access the logical drive because you have incorrectly failed another drive Local Spare Drives A local spare drive is a standby drive assigned to serve one specified logical drive When a member drive of this specified logical drive fails the local spare drive becomes a member drive and automatically starts to rebuild A local spare drive always has higher priority than a global spare drive that is if a drive fails and there is a local spare and a global spare drive available the local spare drive is used Local spare drive FIGURE 1 12 Local Dedicated Spare 1 16 Sun StorEdge 3000 Family RAID Firmware 3 25 User s Guide June 2003 1 4 2 Global Spare Drives A global spare drive is available for all logical drives rather than serving only one logical drive see FIGURE 1 13 When a member drive from any of the logical drives fails the global spare drive joins that logical drive and automatically starts to rebuild A local spare drive always has higher priority than a global spare drive that is if a drive fails and there is a local spare and a global spare drive available the local spare drive is used Global spare dr
224. vice Enclosure Services Device Disconnected Connected User Defined Parameter FC Default Setting SCSI Default Settings Range of Values Device Supports Disabled Disabled Removable Media Undefined LUN 0s Only LUN Applicability Enabled Disabled Disabled TABLE B 9 Host Side and Drive Side Parameters User Defined Parameter FC Default Setting SCSI Default Settings Host side SCSI Parameters Maximum Queued I O Count 1024 bytes 256 bytes LUNs per Host SCSI ID 32 32 Maximum Number of Concurrent 1024 128 Host LUN Connections Number of Tags 1024 32 Reserved for Each Host LUN Connection Range of Values Auto or 1 1024 bytes 1 to 32 1 to 1024 1 to 1024 FC 1 to 256 SCSI Host side SCSI Parameters gt Host Cylinder Head Sector Mapping Parameters Sector Ranges Variable Variable Head Ranges Variable Variable Cylinder Ranges Variable Variable B 6 Sun StorEdge 3000 Family RAID Firmware 3 25 User s Guide June 2003 32 64 127 255 Variable sectors 64 127 255 Variable heads 1024 32768 65536 Variable cylinders TABLE B 9 Host Side and Drive Side Parameters Continued Host side SCSI Parameters gt Fibre Connection Option Loop only Not applicable FC Range of Values Point to point only Loop only Loop preferred otherwise point to point Drive side SCSI Parameters SCSI Motor Spin Up SCSI Reset at Power Up Disabled Enabled
225. vide immediate access to the Main Menu topics despite whether or not a password has been established Note This firmware only allows one password to be entered Subsequently there are not unique timeout options for each potential operator lt Main Menu gt Quick installation view and edit Logical drives view and edit logical Volumes view and edit Host luns view and edit scsi Drives view and edit Scsi channels edit Configuration parameters ew and Controller Name Not Set LCD Title Display Controller Logo Password Validation Timeout Always Check Controller Unique Identifier Not Defined Disable SDRAM ECC Disabled ees Change Password Validation Timeout 2 minutes 5 minutes Always Check f Communication Parameters Caching Parameters Host side SCSI Parameters Drive side SCSI Parameters Disk Array Parameters Redundant Controller Parameters Controller Parameters FIGURE 8 4 Password Validation Timeout To set Password Validation Timeout follow these steps 1 From the Main Menu select view and edit Configuration parameters then select Controller Parameters and press Return 2 Select Password Validation Timeout and then press Return 8 16 Sun StorEdge 3000 Family RAID Firmware 3 25 User s Guide June 2003 8 9 4 lt Main Menu gt Quick installation view and edit Logical
226. y transparent to the host computer or the operating environment Select view and edit Configuration parameters then select Disk Array Parameters and then press Return again The Disk Array Parameters menu is displayed Select Rebuild Priority and then press Return A list of the priority selections Low Normal Improved or High is displayed The background rebuild process has four priority options Low the default which uses the controller s minimum resources to rebuild 8 26 Sun StorEdge 3000 Family RAID Firmware 3 25 User s Guide June 2003 8 11 2 Normal to speed up the rebuilding process a Improved to speed up the rebuilding process a High to use the controller s maximum resources to complete the rebuilding process in the shortest possible time Select the desired setting and press Return Verification on Writes Normally errors may occur when a hard drive writes data In order to avoid the write error the controller can force the hard drives to verify the written data There are three selectable methods m Verification on LD Initialization Writes Performs Verify after Write while initializing the logical drive m Verification on LD Rebuild Writes Performs Verify after Write during the rebuilding process m Verification on LD Normal Drive Writes Performs Verify after Write during normal I O requests Each method can be enabled or disabled individually Hard drives wi
227. zation 2182 Initialization of Logical Drive 2 Completed 2 To clear the saved event logs scroll the cursor down to the last event and press Return A Clear Above xx Event Logs confirmation message is displayed 3 Choose Yes to clear the recorded event logs Note Resetting the controller clears the recorded event logs If you want event logs to persist after controller resets refer to Sun StorEdge 3000 Family Configuration Service User s Guide for information about how to install and configure the Configuration Service software 10 10 Sun StorEdge 3000 Family RAID Firmware 3 25 User s Guide June 2003 APPENDIX A Firmware Specifications This appendix contains the firmware specifications in the following tables Basic RAID Management on page A 1 Advanced Features on page A 2 Caching Operation on page A 3 RAID Expansion on page A 4 Redundant Controller on page A 4 Data Safety on page A 5 Security on page A 6 Environment Management on page A 6 User Interface on page A 6 Note Refer to the Sun StorEdge 3000 Family Installation Operation and Service Manual for your SCSI or Fibre Channel array for up to date information about specific firmware features and descriptions that apply to your array TABLE A 1 Basic RAID Management Feature Description RAID Levels 0 1 1 0 3 5 30 and 50 Enhanced RAID Levels supported with logical vo

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