Chapter 6—Configuring and Managing Partitions Partition Overview
August 2017 User Guide—Spectra T50e Library
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Global Spare Drives
TheGlobalSpareoptionletsyouremotelysubstituteaworkingdrivefora
failedoneusingasparedriveinthelibrary.HavingaGlobalSparedrivein
thelibraryletsyoucontinueyourbackupoperationsandreplacethefailed
drivethenexttimeyouarephysicallypresentatthelibrary.SeeAssigna
GlobalSpareDriveonpage174forinstructionsonhowtoassignaGlobal
Sparetoapartition;seeUsingaGlobalSpareDriveonpage402for
instructionsonhowtousetheGlobalSparedriveinplaceofafaileddrive.
Queued Ejects
Mode
Thelibrarycanbeconfiguredwithtwoormorestoragepartitions.Queued
Ejectsmodecanalsobeusedifthereisonlyonestoragepartition.Queued
EjectsmodeallowsmultiplestoragepartitionstosharethesingleE/Eslot.
WhenoperatinginQueuedEjectsmode,theBlueScalesoftwarecoordinates
accesstothe
E/Eslottoensurethatitisalwaysclearwhichpartition“owns”the
cartridgeintheE/Eslotatanygiventime.
TheBlueScalesoftwaretreatsallejectoperationsinitiatedbythestorage
managementsoftwareaslogicalmovestotheE/Eslot.Themoveisreportedas
successful,buttheejectedcartridgeisleftinitsoriginalslot;theslotismarkedas
inaccessibletothestoragemanagementsoftware.Leavingtheejectedcartridges
intheiroriginalslotsallow sthestoragemanagementsoftwaretoejectmore
cartridgesthanthesinglephysicalE/E slotcanaccommodate.
Whenyouarereadytophysicallyremovecartridgesfromthelibrary,youmust
usetheBlueScaleuserinterfacefromthelibrary’soperatorpaneltoselecta
partitionandthenusethe“ProcessQueuedEjects”option.Duringtheexport
processallofthecartridgesthatwerelogicallyejectedbythestorage
management
softwarearemovedonebyonetotheE/Eslot,andtheaccessport
opened,sothatthecartridgescanberemovedfromthelibrary.Afterthe
cartridgesareexported,theslotstheyoccupiedareonceagainaccessibletothe
storagemanagementsoftware.
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