单项选择题
A.Use write-back cache with battery backup enabled
B.Use write-through cache with battery backup enabled
C.Use read-back cache with battery backup enabled
D.Use read-through cache with battery backup enabled
单项选择题 Acustomerneedstoinstalladatabaseonaserver.WhichofthefollowingstatementsdescribeshowtomodifytheRAIDconfigurationforoptimalperformance？（）
单项选择题 Acustomerisexperiencingaperformancebottleneck.TheserverisperformingsequentialI/Orequestswithlargeblocksizesof64KB.Improvingwhichofthefollowingstoragesubsystemcharacteristicshasthebiggestimpactonthisbottleneck？（）
单项选择题 AnxSeriesspecialistmonitorsacustomer’sserverthathaspoorperformance.Thecustomerisrunninganx365withaServeRAID6icontrollerwithwrite-backcacheturnedonandten15KrpmdrivesinaRAID-5array.Itisamission-criticalserverandmusthavearedundantstoragesystem.PerformancetestsindicatethattheAverageDisksec/Transferexceeds20ms.Whichofthefollowingisthelowest-costmethodtoincreasethethroughput？（）