ATTO Technology FastStream VT, 5300 operation manual Iv Appendix

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users with critical data which cannot be lost or corrupted due to the failure of a single drive.

With RAID Level 1, the host sees what it believes to be a single physical drive of a specific size: it does not know about the mirrored pair.

The ATTO FastStream VT 5300 manages where data is written and read, allowing one drive to fail without the host knowing it has failed. RAID Level 1 is used in applications containing mission critical data. The ATTO FastStream VT 5300 supports an even number of 2 to 32 drives per RAID Level 1 group.

Exhibit A-4 RAID Level 1: Data is written to two or more drives simultaneously.

RAID Level 1

Stripe	Disk 0	Disk 1	Disk 2	Disk 3	Disk 4	Disk 5

0	D0	D0	D4	D4	D8	D8
1	D1	D1	D5	D5	D9	D9
2	D2	D2	D6	D6	D10	D10
3	D3	D3	D7	D7	D11	D11

RAID Level 10

RAID Level 10 increases data transfer rates while ensuring security by writing the exact same data simultaneously to two or more different drives.

RAID Level 10 is used in applications requiring high performance and redundancy, combining the attributes of RAID Levels 1 and 0.

The ATTO FastStream VT 5300 supports an even number of 4 to 32 drives per RAID Level 10 group.

Exhibit A-5 RAID Level 10 with mirroring and spanning; redundancy is shown in shaded blocks.

RAID Level 10

Stripe	Disk 0	Disk 1	Disk 2	Disk 3	Disk 4	Disk 5

0	D0	D0	D1	D1	D2	D2
1	D3	D3	D4	D4	D5	D5
2	D6	D6	D7	D7	D8	D8
3	D9	D9	D10	D10	D11	D11

RAID Level 5

RAID Level 5 increases reliability while using fewer drives than mirroring by employing parity redundancy. Distributed parity on multiple drives allows you to rebuild a failed drive from the remaining good drives. The ATTO FastStream VT 5300 operates in degraded mode if a drive fails.

The ATTO FastStream VT 5300 supports 3 to 32 drives per RAID Level 5 group.

Exhibit A-6 RAID Level 5 with parity blocks shaded.

RAID Level 5

Stripe	Disk 0	Disk 1	Disk 2	Disk 3	Disk 4	Disk 5

0	D0	D1	D2	D3	D4	P0-4
1	D6	D7	D8	D9	P5-9	D5
2	D12	D13	D14	P10-14	D10	D11
3	D18	D19	P15-19	D15	D16	D17
4	D24	P20-24	D20	D21	D22	D23
5	P25-29	D25	D26	D27	D28	D29

iv Appendix

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Contents FastStream VT Page Page Contents Appendix E Warranty, contact information Xxi Update storage and firmwareModify storage Interface optionsVirtual Tape features Hardware featuresBackup and restore features Management and control featuresGb FC Switch GbE Switch Ethernet Fibre ChannelGbE network Physical attributes Installation Unpack the packing box verify contents InstallationInstall the FastStream Install Windows driversClick on Launch Browser Begin initial configurationConfigure Virtual Tape Use custom initial setup Use quick initial configurationClick on the Add/Remove Hot Spares button Use Hot Spare devicesEnable/Disable Write Protection page appears Click in the Enable/Disable Write Protection buttonSecure data through Write Protection Move Virtual Tape CartridgesCustomize the username, password Change system configurationsOptional changes to system parameters Advanced CLI Changes to other parameters may be made using the AdvancedMonitor VTL Monitor storage and diagnose configurationsConfiguration Display Health and Status MonitorPhone home E-mail messages Click the Set up Error Notification button ConfigurationMeasure drive performance Verify storage Scan drive surfacesClick the Initialize and Verify button Select Verify OnlyModify storage Initialize and verify drivesAdd drives to a RAID Group Add or remove Hot Spares Rebuild RAID GroupsSelect Rebuild RAID Groups Select the Add/Remove Hot Spares buttonAdd a VTL from another FastStream VTL Delete a VTLClick in the Delete Virtual Tape Library button Move Virtual Tape Cartridges Remove stale VTL configuration data Update storage and firmwareUpdate firmware Preliminary stepsUse the RS-232 serial link Use FTP over EthernetSend File Click Send FileInterface options Use the serial portType FastStream VT 5300 in the New Connection dialog box Enter Use TelnetAppendix a Cabling Scsi cablingCable types Cable length Fibre Channel connectionsJbod Just a Bunch of Disks Appendix B Designing RAID groupsRAID Level DiskIv Appendix Appendix C CLI provides an ASCII-based interface Symbol IndicatesMp1 CLI error messagesCLI summary Command Default ExampleViii Appendix Sntp CLI command explanations DHCPFixedDelay DefaultInterleaveDriveTestConfig DumpConfigEmailNotifyAddress EmailPasswordEmailServerAddress EmailUsernameFCDataRate FCPortErrorsFCHard FCHardAddressIPGateway PasswordIPSubnetMask IsReservedResetFCPortErrors RAIDCommandTimeoutRestoreConfiguration RGCancelAddStorageRGDisplay RGWaitTimeoutRGHaltConversion RGHaltRebuildSCSIPortReset SaveConfigurationSCSIPortResetOnStartup RMStatusSerialPortEcho SerialPortBaudRateSNTPServer TailEventLogFurther results of FCC Testing Appendix D Standards and compliancesThis equipment generates, uses, and can radiate radio Declaration of Conformity European StandardsAppendix E Warranty, contact information Manufacturer limited warrantyContact Atto Technology, Inc Xxii Appendix