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YouareanOracleDBAresponsibleforanASMinstance.Thediskcontrolleronyoursystemfails.Yoususpectthatthediskitselfisokay.Youknowitwilltake24hourstoreplacethecontrollerandyoudon’twanttohavetorebuildthedisksfromscratch.Whatdoyoudo?()
A.Takethewholediskgroupofflineandwaitforthecontrollercardtobeinstalled.Onceit’sinstalled,bringthediskgrouponlineagain.
B.ChangetheASMparameterASM_PREFERRED_READ_FAILURE_GROUPStoindicatethatyouwanttoreadfromthenon-faileddisk.Oncethediskcontrollerisreplaced,resettheparametertoits originalvalue.
C.Youhavenochoicebuttorebuildthedisk.Dropthediskfromthediskgroupandwaitforthecontrollertobereplaced.Oncethecontrollerisreplaced,addthediskbackintothediskgroupandallowASMtorebuildit.
D.IfyouareusinganysettingotherthanREDUNDANCYEXTERNALforyourdiskgroup,youwillhavetorecoveranydataonthatdiskfromabackup.Thedatabasewillbeunavailableuntilyoucancorrecttheproblemandperformrecovery.
E.ChangetheattributeDISK_REPAIR_TIMEonthediskgrouptoatimegreaterthan24hours.
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