单项选择题
A customer is experiencing a performance bottleneck. The server is performing sequential I/O requests with large block sizes of 64KB. Improving which of the following storage subsystem characteristics has the biggest impact on this bottleneck?()
A.Seek Time
B.Drive RPM
C.Data Transfer Rate
D.Rotational Latency
相关考题
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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
