AMCC 9550SX, 9500S, 9590SE, 9650SE manual RAID 10 Configuration Example

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Chapter 1. Introduction to the 3ware Command Line Interface

Figure 5. RAID 10 Configuration Example

RAID 50

RAID 50 is a combination of RAID 5 with RAID 0. This array type provides fault tolerance and high performance. RAID 50 requires a minimum of six drives.

Several combinations are available with RAID 50. For example, on a 12-port controller, you can have a grouping of 3, 4, or 6 drives. A grouping of 3 means that the RAID 5 arrays used have 3 disks each; four of these 3-drive RAID 5 arrays are striped together to form the 12-drive RAID 50 array. On a 16-port controller, you can have a grouping of 4 or 8 drives.

In addition, RAID 50 arrays offer a higher degree of fault tolerance than RAID 1 and RAID 5, since the array can sustain multiple drive failures without data loss. For example, in a twelve-drive RAID 50 array, up to one drive in each RAID 5 set can fail and the array will continue to function. Please note that if two or more drives in a RAID 5 set fail, then all of the data will be lost.

14	3ware Serial ATA RAID Controller CLI Guide

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Contents Command Line Interface 3ware Serial ATA RAID ControllerCopyright Table of Contents 3ware Serial ATA RAID Controller CLI Guide Cx/ux set autoverify=onoff 3ware Serial ATA RAID Controller CLI Guide About this CLI Guide Introduction to the 3ware Command Line Interface Features of the CLISupported Operating Systems TerminologyInstalling the 3ware CLI Installing the 3ware CLI on WindowsTo install 3ware CLI on Windows Permissions Required to Run CLIInstalling the 3ware CLI on Linux and FreeBSD To start CLI, do one of the followingTo use the CLI interactively Using the command interface interactivelyWorking with 3ware CLI Scripting example Using a single command with outputUsing an input file to execute a script Outputting the CLI to a Text File ConventionsUnderstanding RAID Levels and Concepts RAID ConceptsAvailable RAID Configurations RAIDRAID 1 Configuration Example RAID 5 Configuration Example RAID 6 Configuration Example RAID 10 Configuration Example Single Disk JbodRAID Configuration Types Possible Configurations Based on Number of DrivesDetermining What RAID Level to Use Hot SpareUsing Drive Capacity Efficiently Drive CapacitySupport for Over 2 Terabytes Common Tasks Mapped to CLI Commands CLI Syntax ReferenceCLI Syntax Reference Syntax Overview Port TasksC1 add type=raid1 disk=0-1 Shell Object Commands Focus ObjectShow ExampleShow ver Show rebuild Show alarms reverseShow diag Show verify Show selftestCommit FlushRescan Controller Object Commands Cx showCx show Cx show attribute attribute Cx show bios Cx show driverCx show model Cx show firmwareCx show serial Cx show pcbCx show pchip Cx show achipCx show numports Cx show numunitsCx show ctlbus Cx show exportjbodCx show spinup Cx show staggerCx show ondegrade Cx show autocarveCx show carvesize Cx show memoryCx show autorebuild Cx show unitstatusCx show allunitstatus Cx show drivestatusCx show all 3JV3MVTASupported RAID Types Supported Stripe Sizes KB Supported Model-Unit Types for ignoreECC Cx rescan noscan Cx commit Cx flushCx show alarms reverse Cx show diag Cx show rebuildRAID-5 Initializing Cx show verify Cx show selftest Setting Up a Rebuild Schedule Cx add rebuild=dddhhdurationSetting Up a Verify Schedule Cx add verify=dddhhdurationSetting Up a Selftest Schedule Cx add selftest=dddhhCx set rebuild=enabledisable1..5 Cx del rebuild=slotidCx del verify=slotid Cx del selftest=slotidCx set verify=enabledisable1..5 Cx set selftest=enabledisable task=UDMASMARTCx set spinup=nn Cx set exportjbod=onoffCx set ondegrade=cacheofffollow Cx set carvesize=1024..2048 Cx set stagger=nnCx set autocarve=onoff Cx set autorebuild=onoff Cx set autodetect=onoff disk=p-pallCx start mediascan Unit Object Commands Cx stop mediascanCx/ux show Cx/ux show verifystatus Cx/ux show statusCx/ux show rebuildstatus Cx/ux show initializestatus Cx/ux show nameCx/ux show serial Cx/ux show qpolicyCx/ux show storsave Cx/ux show identifyCx/ux show autoverify Cx/ux show cacheCx/ux show all Cx/ux show volumesCx/ux show ignoreECC Cx/ux remove noscan quiet Cx/ux del noscan quiet Cx/ux start rebuild disk=pp-p...ignoreECCCx/ux start verify Cx/ux pause rebuildCx/ux resume rebuild Supported RAID Logical Unit Types for VerificationCx/ux stop verify Cx/ux flushCx/ux set autoverify=onoff Cx/ux set cache=onoff quietSupported RAID Types for Caching Cx/ux set identify=onoffCx/ux set ignoreECC=onoff Cx/ux set storsave=protectbalanceperform quiet Cx/ux set name=stringCx/ux set qpolicy=onoff Example 3ware Serial ATA RAID Controller CLI Guide Valid Migration Paths Supported Stripe Sizes Example of capacity expansion Migration ProcessExample of splitting a mirror Example of migrate output Port Object Commands Cx/px showCx/px show status Cx/px show modelCx/px show serial Cx/px show firmwareCx/px show ncq Cx/px show lspeedCx/px show capacity Cx/px show smartCx/px show all Cx/px remove noscan quiet Cx/px set identify=onoffBBU Object Commands Cx/bbu showCx/bbu show attribute attribute Cx/bbu show statusCx/bbu show batinst Cx/bbu show lasttestCx/bbu show volt Cx/bbu show tempCx/bbu show bootloader Cx/bbu show serialCx/bbu show fw Cx/bbu show pcbCx/bbu test quiet Cx/bbu enableCx/bbu disable quiet Enclosure Object Commands Ex showEx show attribute attribute Ex show controllersEx show slots Ex show fansEx show temp Ex show allEx/slotx set identify=onoff Ex/slotx showEx/slotx show identify Help Commands Help with specific commandsEx/fanx show Ex/tempx showAttribute attribute Help with attributes HelpHelp update Help showHelp flush Help rescanHelp focus Help /cxHelp /cx/ux Help /cx/pxCommand Logging Return CodeHelp /ex/fanx Help /ex/tempxIf you type