ATTO Technology S-Class manual Lun

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Configuring a partially-populated array The simplest way to attain RAID Level 5 in a partially-populated array (an array with three or more sleds but less than 12 sleds) is to create one RAID Level 5 group, with or without hot spare

sleds, encompassing all the available sleds by using the CLI command QuickRAID5 ALL.

To set up a partially populated arrays, you must have at least three sleds filling contiguous slots as shown in Exhibit 6.4-4,beginning with the slot closest to the management card.

Exhibit 6.4-4 Examples of RAID Level 5 configurations in partially-populated array with at least six sleds. Hot Spare sleds are in the highest slot numbers.

Sled

1

2

3

4

5

6

7

8

9

10

11

12

QuickRAID5 4

3 contiguous sleds in slots 1-3

LUN 2

and slots 4-6 with no Hot Spare

LUN1

sled

QuickRAID5 3

4 contiguous sleds in slots 1-4

LUN 1

LUN 2

and slots 5-8 with no Hot Spare

sled

QuickRAID5 2

6 contiguous sleds in slots 1-6

LUN 1

with no Hot Spare sled

QuickRAID5 2 1

LUN 1

Hot

5 contiguous sleds in slots 1-5

Spare

with up to 2 Hot Spare sleds

QuickRAID5 ALL

3-12 contiguous sleds with no

LUN 1

Hot Spare sleds

QuickRAID5 ALL 1

Hot

3-11 contiguous sleds with 1 Hot

LUN 1

Spare

Spare sled

To set up RAID Level 5 groups

1Connect to Diamond Storage Array services via the RS-232 port or the optional Ethernet management services card (refer to Accessing the Array on page 17). You should now be in the CLI.

2Continue with the CLI or access the RAID page of the ExpressNAV interface (refer to ATTO ExpressNAV: Browser-based Interface on page 25).

Note

Because the ExpressNAV pages take you through this process easily, the following instructions are based on the CLI commands. Use these instructions as a guide in ExpressNAV.

3Decide the RAID Level 5 configuration you want based on the number of sleds you are using and Exhibit 6.4-4above.

4Type set QuickRAID5 [2 3 4 ALL]

5Type SaveConfiguration Restart to save the RAID Level 5 configuration.

6A Ready prompt displays. You must zero all drives and parity to make all RAID Level 5 drives coherent. Type RAID5ClearData all

CAUTION

This is a destructive operation: all information stored on these drives is lost.

DO NOT interrupt power until the RAID5ClearData operation has completed (three to six hours).

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ATTO Technology Inc. Diamond Storage Array Installation and Operation Manual

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Contents

Diamond Storage Array Class Page Page Contents In-band CLI Over the Fibre Channel Serial Port Configuration Commands Configuring Drives RAID Interleave Parameters Appendix D Specifications Vii Appendix E Warranty ViiiPreface Atto Technology, IncPage Diamond Storage Array features Diamond Storage Array Product OverviewFibre Channel model Scsi modelAdxt Powers ATA to New Levels Diamond Storage Array Technical OverviewATA Interface Engine AIE The interface to each Installation Instructions Physical setupSet up the Ethernet connection Connect to EthernetSet up RAID configuration Components Floor modelRack mount Components Physical Set Up Spaced rail pairs in some rackmount cabinetsRack mount cabinets with stationary shelf or tray Sliding shelf or tray type systems should neverGeneral instructions Connecting a Fibre Channel Array AutoconfigurationManual configuration Fibre Channel connections Connecting a Scsi Array To connect a Scsi arrayBus speed, MB/sec Bus width Max. bus lengths Max. device BitsScsi connections Determining Drive and Sled Designations Physical numberingLogical numbering Numbering conventionsExamples Unique serial number for each LUNRAID Level 10 QuickRAID10 The QuickRAID10 RAID Level 5 QuickRAID5 with a fullyAccessing the Array Command Line InterfaceAtto ExpressNAV RS-232 portSnmp In-band CLI Over the Fibre Channel DetailsInitiator Host Diamond Array Invalidparameterincdb will be returned Initiator/Host Diamond Storage ArraySerial Port Access Serial port access Ethernet Access Telnet and Snmp Protocols To connect to the Ethernet portTo use Telnet To use SnmpType SaveConfiguration restart to reboot the array Traps are generated for the following situationsAtto ExpressNAV Browser-based Interface Browser compatibilityOpening an ExpressNAV session Navigating ExpressNAVInformation Sidebar ExpressNAV Pages Configuration Clear DataLogical Units RebuildCommand Line Interface Use and Guidance Command Line Interface actions and responsesPage Summary of CLI Commands Command Defaults ExampleCommand Defaults Example General Use Commands General CLI commands Ethernet Commands TelnetPassword TelnetTimeoutTelnetUsername Fibre Channel Configuration Commands FcPortInfo FcPortListFcPortName FcWWNameSerial Port Configuration Commands SerialPortBaudRateSerialPortHandshake SerialPortEchoSerial port CLI commands Diagnostic Commands SledFaultLED TemperatureSMARTData VirtualDriveInfoMaintenance Commands FcScsiBusyStatusMaxEnclTempAlrm MinEnclTempAlrmMaintenance CLI commands Drive Configuration Commands DriveWipe IdeTransferRateLUNState QuickRAID0RestoreModePages RAID5ClearDataRAID5ClearDataStatus RAIDInterleaveExamples, refer to Information Commands Results on Configuring Drives Jbod Just a Bunch of DisksRAID Level Interleave Hot Spare sledsEnhancing performance To set up the Jbod configuration JbodJbod RAID Level Sled-based versus disk-basedTo remove RAID Level 0 groups LUNs virtual drive numbersPage Page To set up RAID Level 1 groups Type SaveConfiguration Type SaveConfiguration Storage Management To remove RAID groupsTo set up RAID Level 1 with Hot Spare sleds Type set QuickRAID 1Configuring a fully-populated array To set up RAID Level 5 groupsTo set up one RAID Level 5 group with one Hot Spare sled Type set QuickRAID5 1 Type SaveConfiguration Restart To set up two RAID Level 5 groups with two Hot Spare sledsType set QuickRAID5 2 Type SaveConfiguration Restart LUN Type set QuickRAID5 ALL Type SaveConfiguration Restart Removing RAID groupsTo set up RAID Level 10 groups Type set QuickRAID10 0 1 2To set up RAID Level 10 with Hot Spare sleds Type set QuickRAID10 1 Type SaveConfiguration RestartRebuilding RAID Configurations Set AutoRebuild disabled saveconfiguration restart To synchronize mirrored drives manuallyRAID Interleave Parameters To change the RAID Interleave parameterRAID interleave Hardware Maintenance Maintenance Hot Swap Operating Instructions Disk drivesPower supplies To replace a blower assemblyBlower assemblies Type set QuickRAID1 Type SaveConfiguration Restart Optional Hot Spare SledTo set up two RAID Level 5 groups with Hot Spare sleds Virtual Drive Hot Spare sledsProcedure Copying DrivesCopy drives Updating firmware using the RS-232 serial port Updating FirmwareCd c\diamond\flash Type put ....imaSystem Monitoring and Reporting Power supply monitoring System fault LED and error codesNumber of blinks Troubleshooting Windows 2000 special instructions Error messagesCommand Line Interface messages Specific situations and suggestions If LUNs do not display on the host Type FirmwareRestartResetting Defaults DefaultFactory Default To return to Default settingsCommand Default Reset if default Reset during Chosen Feature Fibre ChannelAppendix B Information Commands Results DriveInfo sled ID drive IDInfo all V80DTESCLUNInfo LUN LunInfoVirtualDriveInfo active planned Virtual Drive ID VirtualDriveInfoSafety compliances EMC specifications Radio and television interferenceRack mount dimensions Floor mount dimensionsEnvironmental and physical Manufacturer limited warranty Contact Atto Technology, Inc