ATTO Technology VT-Class manual Hot Swap Operating Instructions, Disk Drives

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10.1 Hot Swap Operating Instructions

To maintain array up time, individual disk drive sled assemblies, power supplies and blower assemblies can be replaced with the unit fully operational. Special instructions need to be followed to perform these operations.

Disk Drives

CAUTION

•Individual disk drive sled assemblies may be replaced while the array is operating with no other intervention only if there is absolutely no activity on that drive.

•Failure to ensure no activity may destroy any data on that drive and possibly stop the entire Diamond-VT operation. Please follow the instructions below using CLI commands to replace drives.

•Do not leave empty openings on the front or rear of the Diamond-VT under any circumstances. Empty openings affect airflow and may cause the unit to overheat and shut down.

•All modular components must be replaced by qualified personnel only. Components are electrostatic sensitive. Use a static wriststrap when handling any of the cards inside the Diamond-VT. Use proper grounding methods. Always store spare components in proper ESD containers when not in use.

Follow your backup procedures before removing a sled. You may copy drives using the appropriate CLI commands (See Drive Management Commands on page 41).

The following method is the safest way to perform a hot swap of a drive.

The general approach: identify the disk drive sled to be replaced, take it offline using the appropriate CLI commands, turn off its power using CLI commands, remove and replace with a new disk drive sled, power up the new sled, and place back on line.

1Connect to Diamond-VT services (see

Accessing the Diamond-VTon page 15) and enter the Command Line Interface mode.

2The fault LED should be blinking on the disk drive sled to be replaced. If it is not, type set SledFaultLED [n] on. The LED of the drive you want [n] will light.

3Determine the Drive Sled Number. The disk drive sled closest to the management card is always the number 1 disk drive sled.

4The Drive Sled Number identified in step 2 is the SledNum variable to be entered into the CLI commands. Take the disk drive sled offline by entering the following CLI commands at the control computer Ready prompt:

Set AtaDiskState (SledNum, 1, OFFLINE)

Set AtaDiskState (SledNum, 2, OFFLINE)

Set DriveSledPower (SledNum, OFF)

CAUTION

In a Hot Spare configuration, a drive sled should only be taken offline if there is absolutely no activity on that drive. If there is any activity, the rebuild of the Hot Spare sled may be flawed.

5Wait 30 seconds for the disk drive sled to spin down and complete any remaining I/O activity.

6Unscrew the two screws on the disk drive sled with the appropriate tool.

7Carefully pull the disk drive sled out of chassis using its handle.

8Mark or tag the disk drive sled with the Diamond Array serial number, the date removed, and its slot number.

9Place the disk drive sled in an appropriate ESD container or bag.

10Install the replacement disk drive sled into the array chassis using proper ESD control steps and with the proper orientation (The disk drive sled assembly is keyed and can only be inserted one way).

11Tighten the two screws on the disk drive sled with the appropriate tool.

12If you do not have AutoRebuild enabled, using the disk drive sled number identified in step 2,

on the control computer Ready prompt type:

ClearDiskReservedArea (SledNum, 1)

ClearDiskReservedArea (SledNum, 2)

Set AtaDiskState (SledNum, 1, ONLINE)

Set AtaDiskState (SledNum, 2, ONLINE)

ResolveLUNConflicts

The new disk drive sled will be available for system use 10 to 15 seconds after the disk drives spin up and communication is reestablished.

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ATTO Technology Inc. Diamond Storage Array Installation and Operation Manual

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Contents Diamond Storage Array VT-Class Page Page Contents Atto ExpressNAV Browser-based Interface ExpressNAV PagesFibre Channel Configuration Commands Serial Port Configuration CommandsMaintenance Services Commands Diagnostic CommandsDrive Management Commands ECCConfiguring the Diamond-VT Diagnostics, Upgrade and Maintenance TroubleshootingResetting Defaults Virtual TapeAppendix D Sample Zoning Command Sequences Appendix E Specifications XiiAppendix F Product Safety Xiii Appendix G Part numbers Xiv Appendix H WarrantyAtto Technology, Inc PrefaceDisclaimer Page Diamond-VT features Diamond Storage Array-VT Product OverviewFibre Channel model Scsi modelDiamond-VT Technical Overview RS-232Ethernet 400MB/secAdxt Powers ATA to New Levels ATA Interface Engine AIE The interface to eachInstallation Instructions Physical setupSet up the Ethernet connection Connect to EthernetSet up Virtual Tape configuration Configuration examplesConnect to Ethernet, on page 5, follow RAID Level 10 with Hot Spare sledsDiamond-VT Components Floor modelRack mount model Rack Mount Diamond-VT Physical SetupFloor Model Physical setup Manual configuration Connecting a Fibre Channel ArrayAutoconfiguration Fibre Channel connections Connecting a Scsi Array To connect the Scsi Diamond-VTBus speed, MB/sec Bus width Max. bus lengths Max. device BitsScsi connections Accessing the Diamond-VT Command Line InterfaceAtto ExpressNAV RS-232 portSnmp Initiator Host Diamond-VT In-band CLI Over Fibre ChannelDetails Initiator/Host Diamond-VT Serial Port Access Serial port access Ethernet Access Telnet and Snmp Protocols To connect to the Ethernet portTo use Telnet To use SnmpTraps are generated for the following situations Browser compatibility Atto ExpressNAV Browser-based InterfaceNavigating ExpressNAV Reset button Parameter name Submit buttonExpressNAV Pages Tape Volumes ConfigurationLogical Units PartitionsReady CLI Interface via ASCII-based CommandsSaveConfiguration command Return type/mode Return format/content HostnameSummary of CLI Commands Command Defaults ExampleCLI index Zoneaddhost zone1 General Use Commands Ethernet Commands SNMPUpdates TelnetPasswordTelnetTimeout SNMPTrapsFibre Channel Configuration Commands FcPortList FcPortNameFcScsiBusyStatus FcWWNameSerial Port Configuration Commands SerialPortBaudRateSerialPortHandshake SerialPortEchoMaintenance Services Commands Diagnostic Commands PowerAudibleAlarm SledFaultLEDTapeVolumeInfo RAID5ClearDataStatusDrive Management Commands DriveWipe LUNStateIdeTransferRate IdeWriteCacheRAID5ClearData RAIDInterleaveRAIDHaltRebuild RAIDManualRebuildRestoreModePages TapeVolumeBlockSizeRebuildPriority TapeWriteProtectZoneClearAll ZoneCreateZoneDelete ZoneRemoveDeviceCLI configure drives Configuring the Diamond-VT Virtual Tape VolumesRAID Level Hot Spare sledsInterleave Enhancing performanceVirtual Tape To set up RAID Level 10 with Hot Spare sleds Optional Hot Spare SledPlanned configuration is a work-in-process ZonesPrinciples of Zoning Device portion defines the LUNsType ZoneInfo Factors to considerStatus and Sense Data Configuring Zoning To create a zoneTo remove zones To change current zonesErrors Zone definition tables The Zone commandsUpdating firmware via the optional Ethernet card Updating FirmwareUpdating firmware via the RS-232 serial port Cd c\diamond\flash Type put ....imaDiagnostics, Upgrade and Maintenance Power On Self Test Post Each timeRS-232 Monitoring Port and CLI One tool to Ethernet Monitoring Port and CLI If the optional25C 32C 35C 40C Power Supply Monitoring The Diamond-VTSystem Fault LED and Error Codes If a serious Disk Drive Activity and Disk Fault LEDs Each Monitoring, reporting Troubleshooting Windows 2000 special instructions Error MessagesCommand Line Interface messages Specific situations and suggestionsIf a power supply fails If you can’t access the Diamond-VT CLI via EthernetIf you cannot read or write to the Diamond-VT Type FirmwareRestart in CLIResetting Defaults Factory DefaultDefault Return to Default settingsCommand Default Rebuilding RAID Level 5 and 10 Configurations To synchronize mirrored drives manually Hardware Maintenance Hardware maintenance Hot Swap Operating Instructions Disk DrivesBlower Assemblies Power SuppliesTo replace a blower assembly Appendix a Glossary Fibre Channel technologySAN technology Scsi protocolAppendix Fibre Channel FeatureAppendix B ATA Disk Technology Appendix C LunInfo for a Jbod setup LunInfo PartitionInfo active 59TapeVolumeInfo ZoneInfoViii Appendix D Sample Zoning Command Sequences First time configuration after downloadSimple configuration Symmetric ModelAsymmetric Model ZoneClearAll ZoneCreate zone1ZoneAddPort zone1 ZoneCreate zone2 ZoneAddPort zone2 ZoneCreate zone3Combined Symmetric/Asymmetric Model Appendix E Specifications Rack Mount DimensionsFloor Mount Dimensions Environmental and physicalAppendix F Product Safety Safety compliancesEMC specifications Radio and television interferenceAppendix G Part numbers Description All modelsContact Atto Technology, Inc Appendix H WarrantyManufacturer limited warranty
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