Dell SC8000 - Adding SC200;220 Enclosures; Creating a New Chain of SC200;220 Enclosures

Appendix A Adding or Removing an Enclosure
184 Storage Center SC8000 Controller Deployment Guide
Adding SC200/220 Enclosures
UsecautionwhenaddinganenclosuretoaliveStorageCentersystemtopreservethe
integrityoftheexistingdata.Thissectiondescribestwomethodsofaddingenclosures:
 Createanew chainbyaddingenclosurestoavailableportsonthecontroller’sIOcards.
Thecurrentconfigurationisundisturbed.Creatinganewchainisthesafestwayto
increasestoragecapacity.Whenyouhavemultiplechains,youshouldhaveatleasttwo
IOcardsineachcontroller.
 Addanenclosuretoanexistingchainbyfailingovertoonesideofthechainandthen
connectingintotheothersideofthechain.
Creating a New Chain of SC200/220 Enclosures
Thismethodissafeandnon‐intrusivetotheexistingdisksandchains.Figure117on
page 185showsanexampleofaddinganewchainusingthefollowingsteps.
1 Ifthereismorethanoneenclosureinthenewchain,cabletheenclosurestogetherfirst.
Donotconnectthechainto
thecontrolleryet.Connecttheenclosures:
a NewEnclosure(3):top,portB→NextEnclosure(4):top,port A.
b NewEnclosure(3):bottomportB→NextEnclosure(4):bottom,portA.
2 Turnoneachoftheenclosuresbeingadded.Whentheenclosuresspinup,makesure
thatthefrontpanel
enclosureandpowerstatusLEDsshownormaloperation.
3 ConnecttheController:slot6,port2→Enclosure3:top,portA.
4 IntheStorageCenterSystemManager,selectStorageManagement→System→
Setup→ConfigureLocalPorts.
5 Makesurethat:
 Slotandslotport(inthiscase,slot6,port2)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.
6 IntheStorageManagerSystemTree,confirmthenumberofenclosures.
7 ConnectlastEnclosure(4):bottom,portB→Controller:slot6,port4.
8 Verifythatthelastenclosurehasbeenaddedasdescribed
insteps4through6.
9 Iftherearenomanageddisksinthissystem, theSystemManagerdoesnotassignan
Indexnumber.Ifthesystemcontainsamanageddiskinanyenclosure,theSystem
Managerassignsanindexnumbertothenewenclosures.
10 TheStorageCenterSystemManagerinforms
youthatyouhavenew,unassigneddisks.
fromtheStorageManagementmenu,selectDisk→ManageUnassignedDisksto
movethemtothemanageddiskfolderandaddthespacetothediskpool.Formore
information,seetheStorageCenterSystemManagerAdministrator’sGuide.
11 Toredistributedataacrossall
drives,fromtheStorageManagementmenu,select
Disk→Rebalance RAID.