Dell SC8000 - Connect SC280 Enclosures

Connect SC280 Enclosures
Dell Compellent 75
Connect SC280 Enclosures
ThissectionshowscommoncablingbetweentheSC8000controllerandSC280SAS
enclosures.LocatethescenariothatmostcloselymatchestheStorageCenteryouare
configuringandfollowtheinstructions,modifyingthemasnecessary.
AcablingchainfortheSC280cancontainuptotwoenclosuresof84SASdriveseach
(168
drivestotal).Eachchainmustcontainthesametypeofenclosures,suchas allSC280.Do
notmixenclosuretypesinachain.
EachSASIOcardsupportsuptotwochainsofenclosures.Allenclosuresattachedtothe
sameSASIOcardmustberunningat6Gb.
SC280enclosure
chainsarecabledasfollows.
 SideA:EnclosuresareconnectedfromBporttoAport,usingtheleftEMMs.
 SideB:EnclosuresareconnectedfromAporttoBport,usingtherightEMMs.
Chain1:BSide 1 ControllerA:slot5,port3→Enclosure4:bottomEMM,portB.
2StartingwithEnclosure4,daisy‐chaintheBsideofChain1bycabling:bottom
EMM,portA→nextenclosureup:bottomEMM,portB.
3 FinishwithEnclosure1:bottomEMM,portA→
ControllerB:slot5,port1.
Chain2:ASide 1 ControllerA:slot6,port3→Enclosure5:topEMM,portA.
2StartingwithEnclosure5,daisy‐chaintheAsideofChain2bycabling:top
EMM,portB→nextenclosuredown:topEMM,portA.
3 FinishwithEnclosure8:top,portB→ControllerB:slot 6,port1.
Chain2:BSide 1 ControllerA:slot5,port1→Enclosure8:bottomEMM,portB.
2StartingwithEnclosure8,daisy‐chaintheBsideofChain2bycabling:bottom
EMM,portA→nextenclosureup:bottomEMM,
portB.
3 FinishwithEnclosure5:bottom,portA→ControllerB:slot 5,port3.
Path Connections
Path High-Level Steps
Chain1:SideA
1 Connectcontrollerport1tothefirstenclosure,l
eftEMM,portC.
2 ConnecttheremainingenclosuresinseriesfromBporttoAportusingthel
eft
EMM
s.
3IftheStorageCenterhasdualcontrollers,connectthelastenclosure,l
eft
EMM
,portCtothesecondcontroller,port3.
Chain1:SideB 1 Connectcontrollerport3tothelastenclosure,rightEMM,portC.
2 ConnecttheremainingenclosuresinseriesfromBporttoAportusingtheright
EMM.
3IftheStorageCenterhasdualcontrollers,connectthetopenclosure,right
EMM,portCtothesecondcontroller,port1.
Note: The cablingillustrationsinthischapterrefertoenclosuresasEnclosure1,
Enclosure2,andsoon.Thenumbersshownintheillustrationsmaynotmatchthe 
IndexnumberassignedbytheSystemManager.StorageCenterassignsanIndex
onlyafterthesystemispoweredupandatleastone
driveisassignedtoaDisk
Folder.