ATTO Technology SC 5700 Modifying RAID group mapping, Modifying RAID group partitions

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Modifying RAID group mapping

You may change the LUNs of drives manually or let the ExpressNAV Storage Manager map drives for you.

1Follow the instructions in Preliminary steps on page 31 and click on the RAID Groups arrow from the Select User Process box.

2Click on the Modify RAID Group Mapping button.

3Click on Next.

4Select the RAID group you wish to change from the drop down box.

5Select the method you wish to use to map the partitions. Refer to Modifying RAID group partitions below.

•If you select Auto, all mapping for all RAID groups attached to this FastStream is changed, destroying any previous mapping.

•If you do not wish to change the mapping of your other RAID groups, select Manual, then click on any partition to map that partition to a Port and LUN.

6Click on Commit to save the new mapping.

7A warning box tells you some mapping configurations may impair performance. Complete the mapping change by clicking on Yes. Clicking on No ends the procedure without making a change.

8The Health and Status Monitor page appears.

Modifying RAID group partitions

A RAID group may have several Terabytes of total data capacity because of the size of the included drives. Partitions allow you to break up large RAID groups into smaller, more manageable groups.

Most host systems can address only 2 TB per LUN. Partitioning increases storage efficiency by providing more LUNs without using lower capacity RAID groups.

Partitioning allows the creation of multiple logical volumes.

1Follow the instructions in Preliminary steps on page 31 and click on the RAID Groups arrow from the Select User Process box.

2Click on the Modify RAID Group Partitioning button.

3Click Next.

4Select the RAID Group Name from the drop down menu.

5Using the graphic and drop down boxes, choose to either merge or split existing partitions or to assign different values for the partition sizes.

6Click Commit.

7A warning box appears. In the warning box, verify that you want to complete the configuration by clicking on Yes. Clicking on No ends the procedure without making a change.

8When the process is complete, the Health and Status Monitor page appears.

Rebuilding RAID groups

If RAID groups become compromised in some fashion, you must rebuild them.

If you have previously enabled Auto-Rebuild and unallocated drives or Hot Spares are available, one of those drives is substituted for the failed drive and a rebuild takes place automatically.

Refer to Step 17 under Creating a custom setup on page 16 for information on Auto-Rebuild and to FastStream process: adding or removing Hot Spares on page 34 for information on Hot Spares.

Hot Spares, if available, are used first, regardless of the Auto-Rebuild setting.

If you have not enabled Auto-Rebuild, use this procedure to rebuild the faulted RAID group.

1Follow the instructions in Preliminary steps on page 31 and click on the RAID Groups arrow from the Select User Process box.

2Click on the Rebuild RAID Groups button.

3Click on Next.

4Follow the on-screen directions, ending by clicking on Commit.

5A warning box appears. In the warning box, verify that you want to complete the rebuild by clicking on Yes. Clicking on No ends the procedure without making a change.

6When the process is complete, the Health and Status Monitor page appears.

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ATTO Technology Inc. FastStream SC Installation and Operation Manual

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Contents FastStream SC Atto Technology, Inc Contents Phone Home Email Alerts Drive Diagnostics Configure Storage into RAID GroupsMonitor Storage, Configurations Scsi Enclosure Services SESInterface Options Manage Atto Devices, ConfigurationsAppendix E Warranty Xxvi Appendix B Design RAID Groups XixAudio/video features FastStream 5000 Series featuresRAID protection features Additional FastStream 5300 featuresAdditional FastStream 5500 features Additional FastStream 5700 featuresFastStream SC 5300 Physical Attributes Exhibit 1.1-1 The connector side of the FastStream SC5300 FastStream SC 5500 Physical Attributes Reset/restore factory default switchOperating Temperature 5 C-40 C SAS/SATA portsLEDs on the faceplate are Do not block the enclosure’s vents. FastStream SC 5700 Physical AttributesCooling and airflow Fibre Channel ports Page Installing the FastStream Install the FastStream Storage ControllerUnpacking the packing box verifying contents Setting up Internet ExplorerUncheck the Require server verification check box Beginning initial configurationSelect Internet Options Select Initialize and Verify Drives Ensure Drive IntegrityBefore creating RAID groups After creating RAID groups Auto-Rebuild Configure Storage into RAID GroupsFeatures you may choose Initialization Fault ToleranceSelecting an application Preliminary stepsGeneral Digital Video, General IT or Database Quick Digital VideoAudio Click CommitCreating a custom setup Page Page Modify System Values Changing current user name, passwordCreating a read-only user name, password Changing system variablesWhen you have completed your changes, click on Commit Health and Status Monitor page appears Monitor Storage, ConfigurationsHealth and Status Monitor Configuration Display Scsi Enclosure Services SESPhone Home Email Alerts Click the Set up Error Notification buttonConfiguration Exhibit 6.1-1 The Error Notification Click the Read-Only Drive Test button Drive DiagnosticsRead only drive test Click on Identify Drive Drive performance and healthIdentifying a drive attached to the FastStream Scsi Enclosure Services SES Setting up SESIdentifying SES elements Monitoring SES elements Use the Health and Status MonitorSelect the Monitor Enclosure Services button Use the Manage menuCreating RAID groups Modify StorageRAID group processes Deleting RAID groupsAdding drives to a RAID group Adding mirrors to a RAID configurationChanging RAID configuration RAID migration Rebuilding RAID groups Modifying RAID group mappingModifying RAID group partitions Click on the Modify RAID Group Mapping buttonSelect the Add/Remove Hot Spares button FastStream process adding or removing Hot SparesModifying RAID options Removing RAID configuration data Advanced CLIPage Discovering, managing other Atto devices Manage Atto Devices, ConfigurationsCreating a unique name for your FastStream Appliance NameSaving or restoring a configuration Click on the System Configuration Save/Restore buttonUsing the ExpressNAV Storage Manager Interface OptionsType FastStream in the New Connection dialog box Using the serial portUsing Telnet EnterUpdate Firmware Click UploadPage Symbol/Abbreviation Indicates Appendix a CLI Provides an ASCII-based InterfaceCLI error messages CLI summaryCommand Default Example IiiIpdhcp Command Default Example AutoResume CLI command explanationsAutoMap DefaultInterleave BlockDevCleanBoot Delay BlockDevIdentifyEmailPassword DriveTestConfigDumpConfiguration DriveTestEventLog FCPortErrorsEthernetSpeed EventLogFilterFCTargets FCPortListFCSCSIBusyStatus FCWWNameMaxOpTemp IPSubnetMaskIsReserved MetricsResetFCPortErrors PasswordReadOnlyPassword RestoreConfigurationRGCommit RGCancelAddStorageRGAutoRebuild RGCreateRGRebuild RGWaitTimeoutRGPreFetch RGResumeConversionRoute SaveConfigurationRMStatus RouteDisplaySerialPortBaudRate SCSIPortResetSCSIPortResetOnStartup SerialPortEchoSESEnclosures SESDiskFailureAlarmDefault disabled SESIdentifyTime TemperatureTailEventLog TimeZoneDvraid Digital Video RAID Appendix B Design RAID GroupsJbod Just a Bunch of Disks RAID Level 1 plus additional mirroring RAID Level 0 striping, no redundancyRAID Level 1 mirroring duplicate drives RAID Level 5 striping, parity distributed among drives RAID Level 1+0 striping, mirror spans two drivesRAID Level 4 striping, one parity drive Disk Stripe Data Cable types Connecting Scsi devices to Scsi portsAppendix C Scsi Cabling Support Max Bits EndedAppendix D Standards and Compliances Declaration of ConformityAppendix E Warranty Manufacturer limited warranty
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