A customer has a file server with RAID-5 using 8KB random I/Os， with 67% reads and 33% writes.  How should the disk controller cache be configured for optimal performance？（）

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

单项选择题Acustomerisrunninganapplicationwithlargeblockfilesthatcontainimagesandvideofiles.Theyhavearequirementforalowcoststoragesolution.TheconsultantrecommendedconsideringtheNASsolution.WhichofthefollowingbenefitswilltheNASsolutionprovide？（）

A.Utilizes existing infrastructure
B.Provides direct host attached solution
C.NAS storage will use the reliable iSCSI protocol
D.Long distances after upgrading all host connections to fibre

单项选择题AttachingtoaNASstoragesystemthroughredundantNICswillprovidewhichofthefollowing？（）

A.High availability and failover
B.File sharing on the storage system
C.Better bandwidth through NIC Teaming on attached servers
D.Greater number of LUNS available on the same storage system

单项选择题AcompanyneedstoconnectsevenoftheirWindows-basedserverstoaDS4000storageserver.TheDS4000onlyhastwohost-sideconnections，andeachserverhastwoHBAs.Whichofthefollowingisthelowestcostsolutiontoprovidenosinglepointsoffailure？（）

A.Implement two 8-port switches design with ISLs
B.Implement two 16-port switches design with ISLs
C.Implement two 8-port switches design without ISLs
D.Implement two 16-port switches design without ISLs