Spectra T950 - Page 196

Chapter 6 — Configuring and Managing Partitions Creating a Storage Partition
November 2016 User Guide—Spectra T950 Library
196
 Thepartitionmustusedirect‐attachedLTOorTS11x0technology
drives.TheGlobalSparefeaturedoesnotsupportusingSCSIdrives
connectedthroughanF‐QIP.
 Inadditiontothedrivesassignedtothepartitionforusebythehost
software,thelibrarymusthavedirect‐attachedFibreChanneldrives
availableforuseassparesinthepartition.
 AllofthedrivesinapartitionwithaGlobalSparemustmatchthe
technologyandgenerationoftheGlobalSpare.
 ThedrivesthatareconfiguredasGlobalSparesmustbeconnectedto
thesameFibreChannelarbitratedlooporfabricasthedrivesthey
wouldreplace.Youmayneedtoreconfigureyourswitchtoaccessthe
GlobalSparedrive.
Partitions Whenconfiguringthepartition,keepthefollowinginmind:
 ThetypeofdriveyouselectastheGlobalSparedeterminesthetypeof
drivethatyoucanassigntothepartition.
 Thelibrarypreventsyoufromselectingdrivesthatcannotbeusedas
GlobalSpares,includingdrivesalreadyselectedascontrollers.
 AlthoughaGlobalSparedrivecanbesharedbymultiplepartitions,the
drivecanonlybeusedbyonepartitionatatime.Toensurethateach
partitionhasaccesstoaGlobalSparewhenneeded,configureoneor
morededicatedGlobalSparedrivesforeachpartition.
 Ifdrivesoftherequiredtypearealreadyinstalled,youcanconfigurea
driveasaGlobalSpareaspartofthepartitionconfigurationprocess.If
youdonotcurrentlyhaveadrivethatcanbeusedasaGlobalSpare
installedinthelibrary,butinstallonelater,youcaneditthepartitionto
configureGlobalSpares.
PostScan Requirements IfyouplantouseoneoftheMLMPostScan
featuresthatrequiresaGlobalSparedrive,youmustconfigureatleastone
GlobalSparedriveforthepartition.
KeepinmindthatwhenthePostScanprocessstarts,it“owns”theGlobal
SparedriveitisusinguntilallofthecartridgesinthePostScanqueueare
processed(unlessyoupausethePostScanoperationasdescribedinPause
thePostScanProcessonpage307).IfasharedGlobalSparedriveisbeing
usedforPostScanitisnotavailableforuseasaspare.Configuringoneor
morededicatedGlobalSparedrivesforeachpartitionthatusesPostScanis
highlyrecommended.
Note: SeeUsingPostScanonpage299forinformationaboutthe
PostScanfeature.
Configuration Process Usethefollowingstepstoconfigureoneormore
GlobalSparedrivesforthepartition.
1. FromtheRoboticControlPathscreen,clickNext.TheSpareDrives
screenliststhedrivesthatareavailableforuseasGlobalSpares.