Dell SC8000 - Removing Enclosures; Release Disks; Remove an SC280 Enclosure

Removing Enclosures
Dell Compellent 193
Removing Enclosures
ThefollowingproceduredescribeshowtouseStorageCenterSystemManagertomove
dataoffthedisksintheenclosuretoberemoved.Formoredetailedinstructions,seethe
StorageCenterSystemManagerAdministrator’sGuide.
Release Disks
Releasediskstoremovethemfromthepoolinpreparationofremovingtheenclosure.
1 IntheStorageCentertree,expandtheDisksnodetoviewthedisksintheenclosure.
2 Selectallthedisksintheenclosureyouareremoving.
3 Fromtheshortcutmenu,selectReleaseDisk.TheRelease
Diskwizardstarts.
4 NotethewarningandclickYestocontinue.Thediskisimmediatelyreleasedanda
dialogboxopensaskingifyouwishtorebalanceRAIDdevicesnow,later,orskip
balancing.
5 ClickYes.Waitfortherebalanceoperationtofinish.
Enclosureswithalldrivesintheunassigned
diskfolderarenowsafetoremove.
Remove an SC280 Enclosure
TheseinstructionsdescribehowtoremoveanenclosurefromanSC280enclosurechain.If
theconfigurationhas twoenclosurechains,youdonotneedtotakeasystemoutage;
however,the controllermustbeabletoseealldrivesthroughonechainwhilethe otherside
isdown.
Disconnect the A-side Chain
DisconnecttheenclosuretoberemovedfromtheA‐sidechain.
1 DisconnecttheA‐sidecablefromControllerB:slot3,port3.TheBsidecontinuesto
carryIOwhiletheAsideisdisconnected(seeFigure 124onpage 194).
2 IntheStorageCenterSystemManager,selectStorageManagement→System
→
Setup→ConfigureLocalPorts.
3 Makesurethat:
 SlotandslotportsareUpandthePurposeissettoback‐end.
 TargetCountequalsthenumberofaddeddrives,demonstratingthatthecontroller
recognizesthenewenclosures.
4 Removethecablebetween:Enclosure1:left,portB→Enclosure2:left,portA(see
Figure 124onpage 194).
5 MovethecablefromEnclosure2:left,portC→Enclosure1:left,port A(see
Figure 125
onpage 195).
6 ReconnectthetopcabletoControllerB:slot3, port3(seeFigure 125onpage 195).
Caution: Beforeyouremoveanenclosure,makesurethatyourdataisbackedup
andthatalldiskstoberemovedareemptyofdata.
Caution: TodisconnecttheA‐sidecablingwithoutasystemoutage,makesurethat
youfirstdisconnecttheA‐sidecablefromthecontroller.Disconnectinganyother
cablefirstdisruptsIOtotheenclosure,resultinginasystemoutage.