單項(xiàng)選擇題

An xSeries specialist monitors a customer’s server that has poor performance. The customer is running an x365 with a ServeRAID 6i controller with write-back cache turned on and ten 15K rpm drives in a RAID-5 array. It is a mission-critical server and must have a redundant storage system. Performance tests indicate that the Average Disk sec/Transfer exceeds 20 ms. Which of the following is the lowest-cost method to increase the throughput？（）

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

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單項(xiàng)選擇題

A customer wants to create backups at a remotely located datacenter. Price and performance are of primary importance， so backup to disks at the remote location is selected instead of tape. The remote location is 1 KM （0.6 Miles） away from the data center. NAS is the solution being considered. Which of the following is the benefit of this solution？（）

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.

單項(xiàng)選擇題

Attaching to a SCSI storage system through redundant paths will provide which of the following？（）

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

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Attaching to a SCSI storage system through redundant paths will provide which of the following？（）

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Attaching to a SCSI storage system through redundant paths will provide which of the following？（）