Chapter 2 — Architecture Overview Component Identifiers
November 2016 User Guide—Spectra T950 Library
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COMPONENT IDENTIFIERS
Thelibrary’sBlueScaleuserinterfaceandtheXMLcommandinterfaceuse
componentidentifiersforeachdrive,RIM,andF‐QIP.Theseidentifiers
alsoappearinsystemmessages.Thecomponentidentifierisbasedonthe
component’slocationrelativetotheframeanddrivebayassembly(DBA)
whereitisinstalled.
TherelationshipsbetweentheDBAsandthelocationsofthedrivesand
controllersarethesameineachmainframeanddriveexpansionframe.In
amulti‐framelibrary,theframesarenumberedsequentiallyfromleftto
rightwhenviewedfromthefront,beginningwiththeleft‐mostframe
(FR1).
Notes: Allcomponentidentifiersarenumberedconsecutivelyby
type,startingat1.
DBAsarenumberedfromthebottomup,withDBA1being
thebottom‐most.
Drivesarenumberedfromlefttorightandbottomtotopina
DBA,asviewedfromthebackofthelibrary.EachDBAcan
holduptofourfull‐heightdrives.
Iftheframecontains3DBAsand3TBAs,DBAs3,4,and5
becomeTBAs.
IftheframecontainsDBAsandshe lv es,theDBAs are installed
fromtoptobottomwithshelve sbelow.