ATTO Technology S-Class manual Optional Hot Spare Sled

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7.2 Optional Hot Spare Sled

To maintain array up time with minimal risk of data loss, individual sleds which fail may be replaced with a spare sled in some configurations.

In most configurations, if a member of a virtual device becomes degraded, you must swap out the faulted sled as defined in Hot Swap Operating Instructions on page 71. If you have not enabled AutoRebuild, you must also start a manual rebuild.

For four configurations, however, Hot Spare sleds may be designated as replacements for faulted sleds without intervention by you or a host.

Each configuration requires a certain number of Hot Spare sleds. These sleds, once designated as Hot Spares, are not available for other use.

The following configurations will support optional Hot Spare sleds

•RAID Level 1: 2 Hot Spare sleds (see Exhibit 7.2-1)

•RAID Level 10: 1 group, 2 Hot Spare sleds (see Exhibit 7.2-2)

•RAID Level 5:1 group, 1 Hot Spare sled (see Exhibit 7.2-3)

•RAID Level 5: 2 groups, 2 Hot Spare sleds (see Exhibit 7.2-3)

Note

All arrays using RAID Level 10 and Hot Spares options must be fully populated.

If a sled becomes degraded and a Hot Spare sled has been designated

•the Diamond will replace the degraded sled with the Hot Spare sled, simulating a hot swap of a sled with AutoRebuild enabled, without intervention

•any sled with a Faulted drive will not be used. Faulted sleds maintain their faulted status until they are removed and re-inserted or if the system is restarted.

•Hot Spares are handled as sleds, not as individual drives

•the Hot Spare sled replaces the Faulted sled in the Virtual Device

•a rebuild will automatically start after the hot spare is switched into the Virtual Device, even if

AutoRebuild is disabled.

•the DriveInfo command will list the number of Hot Spare sleds currently in the system

•you can replace the faulted drive or sled later. However, faulted is a non-persistent state. After a power cycle, the faulted sled will display on the DriveInfo screen as have no type, i.e, the type field will be blank. The sled cannot be accessed but must be removed and replaced. If it is replaced, it will be assigned in this order

1if a Virtual Device is missing a sled or you are hot swapping a sled, the new sled becomes part of the existing Virtual Device.

2if a Hot Spare sled is missing, the replacement sled will become a Hot Spare sled.

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.

To set up RAID Level 1 with Hot Spare sleds

1Connect to Diamond Storage Array services (refer to Accessing the Array on page 17) and use the CLI or enter ATTO ExpressNAV Advanced CLI Configuration page.

2Type set QuickRAID1 2

3Type SaveConfiguration Restart

The array is configured into one RAID Level 1 group with two Hot Spare sleds.

To set up RAID Level 10 with Hot Spare sleds

1Connect to Diamond Storage Array services (refer to Accessing the Array on page 17) and use the CLI or enter ATTO ExpressNAV interface Advanced CLI Configuration page.

2Type set QuickRAID10 1 2

3Type SaveConfiguration Restart

The array is configured into one RAID Level 10 group with two Hot Spare sleds.

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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 SaveConfigurationType 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

S-Class specifications

ATTO Technology S-Class is a comprehensive solution designed to optimize storage and networking performance for digital content creation and enterprise environments. This product line specializes in high-performance connectivity, facilitating seamless data transfer and management.

One of the key features of the S-Class is its advanced RAID (Redundant Array of Independent Disks) capabilities. This incorporates various levels of RAID configurations, enabling users to choose the right balance between performance and redundancy. The technology ensures data integrity while maximizing throughput, a crucial aspect for workflows dealing with large files such as video editing and graphic design.

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The S-Class also incorporates intelligent storage management features. The ATTO ConfigTool offers a user-friendly interface for monitoring and configuring storage settings, allowing for real-time adjustments and performance tuning. This ensures that users can effectively manage their storage resources, balancing capacity and performance according to their specific needs.

Furthermore, the technology employs a robust set of data protection mechanisms, including snapshot and backup capabilities. This ensures that critical data is safeguarded against potential loss, enhancing operational reliability. The integration of these features supports comprehensive workflow solutions, benefiting industries that require continuous access to high-volume data.

Lastly, the S-Class is built to integrate seamlessly with popular operating systems and platforms, providing versatility and ease of deployment. Whether used in a small studio or a large enterprise environment, ATTO Technology's S-Class stands out as a solution that combines speed, reliability, and manageable performance, making it a top choice for professionals who demand the best in their storage and network infrastructure.

In summary, ATTO Technology S-Class is not just a storage solution; it's a gateway to unlocking peak performance in data management, tailored for the challenges of today’s data-driven landscape.
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