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Question 503 - H13-611 discussion

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What is the function of hot spare in storage?

A.
Additional space for usage when storage resource is low
Answers
A.
Additional space for usage when storage resource is low
B.
Used as cache to increase the performance of disks.
Answers
B.
Used as cache to increase the performance of disks.
C.
Spare disk space for storing metadata
Answers
C.
Spare disk space for storing metadata
D.
Spare disk space used for disk data reconstruction when disks are faulty.
Answers
D.
Spare disk space used for disk data reconstruction when disks are faulty.
Suggested answer: D

Explanation:

In storage, a hot spare is a spare disk that is pre-configured and ready to be used to rebuild data in the event of a disk failure in a RAID array. When a disk failure occurs in a RAID array, the data that was stored on the failed disk is rebuilt using the data from the remaining disks and the hot spare. The rebuild process is done automatically by the RAID controller, and it is done in a way that does not disrupt the normal operation of the RAID array. The hot spare disk is usually kept in a powered-on and ready state, so that it can be used immediately in case of a disk failure. It is also known as "hot spare disk" or "hot spare drive".

asked 18/09/2024
Erik de Bont
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