CompTIA Server+ (SK0-005) — Question 167

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?

Answer options

• 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.

Correct answer: A

Explanation

The correct answer is A because a bad battery on the RAID controller typically leads to the disabling of the write cache, which significantly impacts performance. Options B, C, and D are incorrect because they do not directly relate to the battery issue; the controller's inability to use channels or the configuration loss does not stem from a bad battery.