A.Seek TimeB.Drive RPMC.Data Transfer RateD.Rotational ……

单项选择题AnxSeriesspecialistmonitorsacustomer’sserverthathaspoorperformance.Thecustomerisrunninganx365withaServeRAID6icontrollerwithwrite-backcacheturnedonandten15KrpmdrivesinaRAID-5array.Itisamission-criticalserverandmusthavearedundantstoragesystem.PerformancetestsindicatethattheAverageDisksec Transferexceeds20ms.Whichofthefollowingisthelowest-costmethodtoincreasethethroughput？（）

A.Disable the ServRAID cache
B.Change the RAID level to 10
C.Change the cache level to Write Through
D.Add five more drives to the array to increase the number of read/write heads

单项选择题Acustomerwantstocreatebackupsataremotelylocateddatacenter.Priceandperformanceareofprimaryimportance，sobackuptodisksattheremotelocationisselectedinsteadoftape.Theremotelocationis1KM（0.6Miles）awayfromthedatacenter.NASisthesolutionbeingconsidered.Whichofthefollowingisthebenefitofthissolution？（）

A.NAS runs on 2Gb fibre， which will provide better performance.
B.NAS uses WAN infrastructure， which can easily span the 1 KM gap.
C.NAS requires fibre storage， which allows dual paths for redundancy.
D.NAS requires iSCSI routers and offers better growth environment.

单项选择题AttachingtoaSCSIstoragesystemthroughredundantpathswillprovidewhichofthefollowing？（）

A.The ability to interleave writes to the array
B.High Availability and failover
C.LUN sharing via Target Mode SCSI on the storage system
D.A greater number of LUNS available on the same storage system

单项选择题Acompanyinstalledanewservertomanageitselectronicimagestorage.Theyhavetwodistinctimagesizes：2KBand16KB.TwodistinctarraysarecreatedonaServeRAIDadapter.Thefirstarraywillstoreallofthe2KBimages，andthesecondarraywillstoreallthe16KBimages.TheRAIDstripesizewasleftatthedefaultsizeof8KB.Afterinstallation，aperformanceproblemisidentified.Accordingtoperformancemonitoring，80%oftheimagesare16KB.Whichofthefollowingwillbestoptimizeperformance？（）

A.Change the stripe size on the RAID controller
B.Change the stripe size to 1024K on the RAID controller
C.Change the stripe size on the RAID controller for the first array
D.Change the stripe size on the RAID controller for the second array

单项选择题Acustomerhastheneedtoimplementatapebackupsolutiontobackupa500GBdatabaseonadailybasis.Whichofthefollowingfactorsisthemostimportantconsiderationinthedesignofabackupandrestoresolution？（）

A.Amount of data in the backup
B.Bandwidth available to the tape device
C.Length of the backup/restore window
D.Speed that the backup system can find files for restoration