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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.


参考答案

更多 “ 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. ” 相关考题
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