Dell SC8000 - Page 145

Complete the Startup Wizard
Dell Compellent 135
b ConfiguretheTierRedundancyforeachtier.
Theredundancylevelforeachtierdefaultstoeithersingleredundantordual
redundantdependinguponthedisksexpectedtobefoundinthetier.Ifatier
containsatleastsixmanageddisksofwhichoneis900GBorgreater,then
thattier
andalltiersbelowitaresettodualredundantstoragebydefault.Ifatiercontains
atleastsixmanageddisksof1.8TBorgreater,thenthattierandalltiersbelowitare
settodualredundantstorageandcannotbechanged.
Singleredundantstorageprotects
againstthelossofanyonedrive.
 RAID10(eachdiskismirrored)
 RAID5‐5(4datasegments/1paritysegmentperstripe)
 RAID5‐9(8datasegments/1paritysegmentperstripe)
Dualredundantstorageprotectsagainstthelossofanytwodrives:
 RAID10DualMirror(dataiswrittensimultaneouslytothreeseparatedisks)
 RAID6‐6(4datasegments/2paritysegmentsperstripe)
 RAID6‐10(8datasegments/2paritysegmentsperstripe)
c FromtheDatapageSizedrop‐downmenu,chooseadatapagesize.
 2MB:(Default)Recommendedformostapplicat ionneeds.
 512KB:Appropriateforapplicationswithhighperformanceneeds(suchas
certaindatabases)orenvironmentsinwhichReplaysaretakenfrequentlyunder
heavyIO.SelectingthissizereducestheamountofspacetheSystemManager
canpresenttoservers.
 4MB:Appropriatefor systemsthatusealargeamountofdiskspacewith
infrequentReplays(suchasvideostreaming).
d ToconfigurethediskfoldertouseRAID0,selectthePrepareforNon‐Redundant
Storagecheckbox.Non‐redundantstoragedoesnotprotectdataintheeventofa
disk
failure.Selectthisoptiononlyfordatathatisbackedupsomeotherway.
e ClickContinue.Thediskfoldersummaryappears.
5 ClickCreateNow,andifprompted,clickOKtoconfirm.TheAddControllerpage
appears.
Caution: Whenconsideringusingeitherthe512KBor4MBdatapage
settings,itisrecommendedthatyoucontactDellTechnicalSupportServices
foradviceonbalancingresourcesandtounderstandtheimpacton
performance.