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Question 684 - 220-1101 discussion

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After replacing a hot-swappable hard drive in a RAID 5 array, a technician notices decreased disk performance for approximately 12 hours. Which of the following is the most likely cause of the performance issue?

A.
Losing a drive caused data loss.
Answers
A.
Losing a drive caused data loss.
B.
Data is being written to the new drive.
Answers
B.
Data is being written to the new drive.
C.
The array is repairing corrupt data sectors.
Answers
C.
The array is repairing corrupt data sectors.
D.
Another drive has gone offline.
Answers
D.
Another drive has gone offline.
Suggested answer: C

Explanation:

After replacing a hot-swappable hard drive in a RAID 5 array, the array must rebuild the data onto the new drive. This process involves reading data from the remaining drives and writing it to the new drive to restore full redundancy. The performance decrease is due to the intensive read and write operations necessary to rebuild the RAID array, which can take several hours depending on the size of the drives and the amount of data.

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asked 02/10/2024
jim eagleton
34 questions
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