单选题A customer needs maximum performance with fault-tolerance from their disk subsystem. Which RAID level meets this requirement？（）A RAID-0B RAID-1C RAID-5D RAID-10

题目内容(请给出正确答案)

单选题

A customer needs maximum performance with fault-tolerance from their disk subsystem. Which RAID level meets this requirement？（）

RAID-0

RAID-1

RAID-5

RAID-10

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单选题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 cacheB Change the RAID level to 10C Change the cache level to Write ThroughD Add five more drives to the array to increase the number of read/write heads

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第2题

单选题A customer has an xSeries x445 server attached to a DS4500 storage server containing two EXP710 disk expansion drawers with 14 disks in each. The x445 is to be used for a video streaming application. The customer wants to make the most cost-effective use of the disk capacity while retaining fault tolerance. Which of the following solutions will satisfy the requirements？（）A Create two RAID-10e arrays， one per disk expansion drawerB Create a single RAID-10 array across the two disk expansion drawersC Create a single RAID-5 array across both disk drawers utilizing all disksD Create four RAID-5 arrays in 6+P format with two arrays to each disk expansion drawer

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第3题

单选题A stock exchange needs extremely low latency in their disk subsystem. Which disk storage technology is mostlikely to fulfill their need?（）A SSDB SSAC SASD SAN

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第4题

单选题An customer with limited storage management skills needs a disk subsystem with up to 70TB capacity and enterprise class performance. Which disk storage system should be recommended?（）A DS6800B DS8100C DS8300D XIV Storage System

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第5题

单选题A customer is experiencing a performance bottleneck in a disk subsystem. The server is performing sequential I/O with a small number of users requesting large files. Which of the following would most likely resolve the bottleneck？（）A Increase seek translationB Increase data transfer rateC Decrease rotational latencyD Increase rotational latency

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第6题

单选题A customer wants to consolidate storage from four IBM System p servers and one large IBM System i server on a high end disk subsystem. The customer does not have a SAN installed. The customer will require approximately 24 TB of capacity for System p and 20 TB of capacity for System i. The customer states that performance of the System i system is most important. Capacity， multi-path access， and replication functions are important for the System p servers. Which solution best satisfies the customer requirements（）A IBM DS8700 with 600 GB drives for the System p， 300 GB/15k drives for Systemi； and advanced functions for System p capacityB IBM DS8700 with LPAR， 300 GB/15k drives and RAID 10 for Systemi； and 600GB drives with RAID 5 and advanced functions for System p capacityC IBM DS8700 with advanced functions， 300 GB/15k drives and RAID 10 for Systemi performance； and 600 GB drives and RAID 5 for System p capacityD IBM DS5100 with Enhanced Remote Mirror， 600GB/15k drives and RAID 5 for System p； and 300GB/15k drives and RAID 10 for Systemi

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第7题

单选题An IT director needs to deploy 3 partitions， each using dedicated internal boot disk. Which system will support the customer requirement using the least amount of rack space？（）A Power 770 serversB Power 750 serversC Power 755 serversD Power 720 servers

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单选题A customer needs maximum performance with fault-tolerance from their disk subsystem. Which RAID level meets this requirement？（）A RAID-0B RAID-1C RAID-5D RAID-10

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