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1.StarttheLSISoftwareRAIDConfigurationUtilityprogram.See“StartingtheLSISoftwareRAID
ConfigurationUtilityprogram”onpage76
.
2.Onthemaininterfaceoftheprogram,selectInitializeandfollowtheinstructionsonthescreen.
Settingahot-sparedrive
Thistopicprovidesinstructionsonhowtosetaphysicaldriveasahot-sparedriveusingtheLSISoftware
RAIDConfigurationUtilityprogram.
Ahot-sparedriveisanextra,unuseddrivethatispartofthedisksubsystem.Itisusuallyinstandby
modeandreadyforserviceifadrivefails.Settinghot-sparedrivesenablesyoutoreplacefailingdrives
withoutperformingasystemshutdownoperation.Foradetailedintroductiontohot-sparedrives,referto
“IntroductiontoRAID”intheMegaRAIDSASSoftwareUserGuideonthedocumentationDVDthatcomes
withyourserver.
Tosetaphysicaldriveasahot-sparedriveusingtheLSISoftwareRAIDConfigurationUtilityprogram,
dothefollowing:
1.StarttheLSISoftwareRAIDConfigurationUtilityprogram.See“StartingtheLSISoftwareRAID
ConfigurationUtilityprogram”onpage76
.
2.Dooneofthefollowing:
IfyouwanttocreateoraddanewRAIDarray,youcansetahot-sparedriveduringtheconfiguration
processbyfollowingtheinstructionsonthescreen.
Ifyouwanttosetahot-sparedriverightaftertheconfiguration,selectObjectsPhysicalDrive
fromtheprogrammaininterface.Then,selectthephysicaldrivethatyouwanttosetasahot-spare
driveandpressEnter.Asubmenuisdisplayed.SelectMakeHotSparefromthesubmenuandthen
selectYeswhenpromptedtosetthephysicaldriveasahot-sparedrive.
Rebuildingaphysicaldrive
ThistopicprovidesinstructionsonhowtorebuildaphysicaldriveusingtheLSISoftwareRAIDConfiguration
Utilityprogramwhenaphysicaldriveinanarrayfails.
WhenadriveinaRAIDdrivegroupfails,youcanrebuildthedrivebyrecreatingthedatathatwasstoredon
thedrivebeforeitfails.Ifthedriveisnotoperational,itmustbereplacedandthedataonthefailingdrive
mustberebuiltonanewdrivetorestorethesystemtofaulttolerance.Ifhot-sparedrivesareavailable,the
failingdrivemightberebuiltautomaticallywithoutanyuserintervention.
TheRAIDcontrollerrecreatesthedatausingthedatastoredonotherdrivesinthedrivegroup.Rebuilding
canbedoneonlyindrivegroupswithdataredundancy,suchasRAID1,5,and10drivegroups.Fora
detailedintroductiontodiskrebuild,referto“IntroductiontoRAID”intheMegaRAIDSASSoftwareUser
GuideonthedocumentationDVDthatcomeswithyourserver.
TorebuildaphysicaldriveusingtheLSISoftwareRAIDConfigurationUtilityprogramwhenaphysical
driveinanarrayfails,dothefollowing:
1.StarttheLSISoftwareRAIDConfigurationUtilityprogram.See“StartingtheLSISoftwareRAID
ConfigurationUtilityprogram”onpage76.
2.Onthemaininterfaceoftheprogram,selectRebuildandfollowtheinstructionsonthescreen.
Note:Runningaconsistencycheckimmediatelyaftertherebuildcompletestoensuredataintegrityforthe
virtualdrives.See“Runningaconsistencycheck”onpage80.
Therebuildrateisthepercentageofthecomputingcyclesdedicatedtorebuildingfailingdrives.Arebuild
rateof100percentmeansthatthesystemgivesprioritytorebuildingthefailingdrives.Therebuildratecan
Chapter5.Configuringtheserver79
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