ATTO Technology SC 5700 operation manual Appendix B Design RAID Groups, Jbod Just a Bunch of Disks

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Appendix B Design RAID Groups

The ATTO FastStream provides instant hardware data protection and intelligence to existing storage independent of the storage type.

CAUTION

RAID improves data accessibility and reliability during normal operations, however, you still need a good backup strategy for long-term protection of your data.

To set up RAID groups refer to Configure Storage into RAID Groups on page 13.

The ATTO FastStream allows RAID functionality. In general, the process begins with individual drives called block devices.

JBOD: Just a Bunch of Disks

JBOD configuration allows many individual drives to be available for normal storage operations with no special data protection by combining several drives into one large drive. A special case of a RAID group, multiple physical drives are assigned to a JBOD RAID

Note

If a drive has corrupt or outdated configuration data, that drive cannot be assigned to any RAID group. Ensure all drives are configured properly. Refer to Ensure Drive Integrity on page 11 or Removing RAID configuration data on page 35.

A RAID group is a virtual, independent single drive whose data is written to physical drives according to a RAID algorithm. The ATTO FastStream supports JBOD, DVRAID, RAID Level 0, 1, 1+ 0, 4 and 5 for all models and RAID Level 6 for the FastStream SC 5500.

RAID improves data accessibility and reliability during normal operations, however, you still need a good backup strategy for long-term protection of your data.

group and their storage areas appear as a single spanned area of storage.

The ATTO FastStream supports 1 to 32 drives per JBOD-configured RAID group.

Disk 1	Disk 2	Disk 3
Data 1	Data 5	Data 9
Data 2	Data 6	Data 10
Data 3	Data 7	Data 11
Data 4	Data 8	Data 12

DVRAID: Digital Video RAID

Digital Video RAID provides parity redundancy for your data. Optimized for performance for the high data transfer rates required in digital video environments, DVRAID is ATTO Technology proprietary technology which supports the editing of uncompressed 10-bit

High Definition (HD) video and multiple streams of real-time, uncompressed Standard Definition (SD) video.

You must use the Quick Digital Video setup wizard in the ExpressNAV Storage Manager.

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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 FastStream SC 5700 Physical Attributes Cooling and airflow Fibre Channel portsDo not block the enclosure’s vents. Page Installing the FastStream Install the FastStream Storage ControllerUnpacking the packing box verifying contents Setting up Internet ExplorerBeginning initial configuration Select Internet OptionsUncheck the Require server verification check box Ensure Drive Integrity Before creating RAID groupsSelect Initialize and Verify Drives After creating RAID groups Configure Storage into RAID Groups Features you may chooseAuto-Rebuild 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 Monitor Storage, Configurations Health and Status MonitorHealth and Status Monitor page appears Configuration Display Scsi Enclosure Services SESClick the Set up Error Notification button ConfigurationPhone Home Email Alerts Exhibit 6.1-1 The Error Notification Drive Diagnostics Read only drive testClick the Read-Only Drive Test button Drive performance and health Identifying a drive attached to the FastStreamClick on Identify Drive 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 mirrors to a RAID configuration Changing RAID configuration RAID migrationAdding drives to a RAID group Rebuilding RAID groups Modifying RAID group mappingModifying RAID group partitions Click on the Modify RAID Group Mapping buttonFastStream process adding or removing Hot Spares Modifying RAID optionsSelect the Add/Remove Hot Spares button 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 CLI command explanations AutoMapAutoResume 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 TimeZoneAppendix B Design RAID Groups Jbod Just a Bunch of DisksDvraid Digital Video RAID RAID Level 0 striping, no redundancy RAID Level 1 mirroring duplicate drivesRAID Level 1 plus additional mirroring RAID Level 1+0 striping, mirror spans two drives RAID Level 4 striping, one parity driveRAID Level 5 striping, parity distributed among drives Disk Stripe Data Connecting Scsi devices to Scsi ports Appendix C Scsi CablingCable types Support Max Bits EndedAppendix D Standards and Compliances Declaration of ConformityAppendix E Warranty Manufacturer limited warranty