Chapter 3 Connect the Back End
84 Storage Center SC8000 Controller Deployment Guide
Connect EN-SASx6x12/24 Enclosures
ThissectionshowscommoncablingbetweentheSC8000controllerandEN‐SAS x6x12/24
SASenclosures.LocatethescenariothatmostcloselymatchestheStorageCenteryouare
configuringandfollowtheinstructions,modifyingthemasnecessary.
ASAScablingchaincancontainupto14enclosuresandupto1686Gbps
SASdrives.Each
chainmustcontainthesametypeofenclosures,suchasallEN‐SASx6x12/24.Donotmix
enclosuretypesinachain.
EN‐SASx6x12/24SASenclosurechainsarecabledasfollows.
SideA:EnclosuresareconnectedfromBporttoAport,usingthetopSBBs.
SideB:EnclosuresareconnectedfromAporttoBport,usingthebottomSBBs.
See Also
SASEnclosureCablingGuidelinesonpage 55
Path High-Level Steps
Chain1:SideA
1 Connectcontrollerport1tothefirstenclosure,top
SBB,portC.
2 ConnecttheremainingenclosuresinseriesfromBporttoAportusingthetop
SBBs.
3IftheStorageCenterhasdual‐controllers,connectthelastenclosure,top
SBB,
portCtothesecondcontroller, port3.
Chain1:SideB
1 Connectcontrollerport3tothelastenclosure,bottom
SBB,portC.
2 ConnecttheremainingenclosuresinseriesfromBporttoAportusingthe
bottom
SBB.
3IftheStorageCenterhasdual‐controllers,connectthetopenclosure,bottom
SBB,portCtothesecondcontroller,port1.
Note: The cablingillustrationsinthischapterrefertoenclosuresasEnclosure1,
Enclosure2,andsoon.Thenumbersshownintheillustrationsmaynotmatchthe
IndexnumberassignedbytheSystemManager.StorageCenterwhichassignsan
Indexonlyafterthesystemispoweredupandatleast
onedriveisassignedtoaDisk
Folder.