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Question 286 - SK0-005 discussion

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A storage engineer responds to an alarm on a storage array and finds the battery on the RAID controller needs to be replaced. However, the replacement part will not be available for 14 days. The engineer needs to identify the impact of the failed battery on the system. Which of the following best describes the impact?

A.
The read and write performance will be impacted.
Answers
A.
The read and write performance will be impacted.
B.
The read performance will be impacted.
Answers
B.
The read performance will be impacted.
C.
The performance will not be impacted.
Answers
C.
The performance will not be impacted.
D.
The write performance will be impacted.
Answers
D.
The write performance will be impacted.
Suggested answer: D

Explanation:

A RAID controller battery is used to protect the data in the cache memory of the controller in case of a power failure. The cache memory allows the controller to improve the write performance by buffering the data and writing it to the disk in an optimized way. However, if the battery fails, the controller will switch to write-through mode, which means it will write the data directly to the disk without caching. This will reduce the write performance and increase the latency of the system

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asked 02/10/2024
abdelhafid houssa
41 questions
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