Exam SK0-005 topic 1 question 255 discussion

Actual exam question from CompTIA's SK0-005

Question #: 255
Topic #: 1

Users have noticed a server is performing below baseline expectations. While diagnosing the server, an administrator discovers disk drive performance has degraded. The administrator checks the diagnostics on the RAID controller and sees the battery on the controller has gone bad. Which of the following is causing the poor performance on the RAID array?

A. The controller has disabled the write cache.
B. The controller cannot use all the available channels.
C. The drive array is corrupt.
D. The controller has lost its configuration.

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Suggested Answer: A 🗳️

by RBL23168 at Dec. 11, 2023, 7:56 p.m.

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surfuganda

11 months ago

Selected Answer: A

A. The controller has disabled the write cache. When the battery fails, the RAID controller may disable its write cache to prevent data loss in the event of a power failure. Without the cache, every write operation has to be fully completed on the disk before proceeding, significantly slowing down disk operations.

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RBL23168

1 year, 1 month ago

A. The controller has disabled the write cache. Battery has a cache that can be used to store data before being wrote onto disk. If battery fails this cache is disabled to avoid data loss incase of a power outage.

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