A specialist is monitoring performance on a server. The data is on another partition within the same array as the OS. The following information is available：      
（1）The average record written to disk is 16KB      
（2）The I/O block size is 2KB  
（3）The stripe size on the RAID array is 16KB 
Which of the following will improve performance without rebuilding the operating system？（）

单项选择题AcustomerhasasmallSANwithbothLinuxandWindowsserversattachedtoaDS4300storageserverthrougharedundantfabric.Whichofthefollowingisthemostimportantconsiderationtoensurethatthisconfigurationwouldfunctionproperly？（）

A.The utilization of interswitch links between the redundant switches
B.The enablement of the multi-OS Storage Partitioning feature on the DS4300
C.Selection of 50u multi-mode Fibre to ensure 2Gb operation
D.The RAID level of the array on the DS4300 storage server

单项选择题AcustomerhasanxSeriesx445serverattachedtoaDS4500storageservercontainingtwoEXP710diskexpansiondrawerswith14disksineach.Thex445istobeusedforavideostreamingapplication.Thecustomerwantstomakethemostcost-effectiveuseofthediskcapacitywhileretainingfaulttolerance.Whichofthefollowingsolutionswillsatisfytherequirements？（）

A.Create two RAID-10e arrays， one per disk expansion drawer
B.Create a single RAID-10 array across the two disk expansion drawers
C.Create a single RAID-5 array across both disk drawers utilizing all disks
D.Create four RAID-5 arrays in 6+P format with two arrays to each disk expansion drawer

单项选择题AcustomerhasafileserverwithRAID-5using8KBrandomI Os，with67%readsand33%writes.Howshouldthediskcontrollercachebeconfiguredforoptimalperformance？（）

A.Use write-back cache
B.Use write-back cache with battery backup
C.Use write-through cache with disk caching enabled
D.Use write-through cache with disk caching disabled

单项选择题Acustomerisexperiencingaperformancebottleneckinadisksubsystem.TheserverisperformingsequentialI Owithasmallnumberofusersrequestinglargefiles.Whichofthefollowingwouldmostlikelyresolvethebottleneck？（）

A.Increase seek translation
B.Increase data transfer rate
C.Decrease rotational latency
D.Increase rotational latency

单项选择题Acustomerneedstheabilitytorecovertheirdataifatotalsystemfailureoccurs.Whichtwoofthefollowingarethemostimportantconsiderationsindeterminingthesolution？（）

A.Network utilization
B.Total amount of storage installed
C.Amount of open files in the backup
D.Amount of critical data in the backup or restore