A technician is working on a server with high latency on the mapped network drive. Upon entry into the server room, the technician suspects an issue with one of the drives in the array. Which of the…

The correct answer is C. Replace the faulty drive in the array. In a RAID array, a degraded or failing drive causes significantly increased latency as the controller must work harder to reconstruct data (especially in RAID 5/6) or retry read/write operations. Most enterprise RAID arrays support hot-swappable drives, meaning the faulty drive…

Hardware and network troubleshooting

Question

A technician is working on a server with high latency on the mapped network drive. Upon entry into the server room, the technician suspects an issue with one of the drives in the array. Which of the following would the technician do to easily solve the problem?

Options

AReseat the drive cable in the array.
BReplace the RAID controller.
CReplace the faulty drive in the array.
DReinstall the RAID drivers.

How the community answered

(41 responses)

A
2% (1)
B
10% (4)
C
83% (34)
D
5% (2)

Explanation

In a RAID array, a degraded or failing drive causes significantly increased latency as the controller must work harder to reconstruct data (especially in RAID 5/6) or retry read/write operations. Most enterprise RAID arrays support hot-swappable drives, meaning the faulty drive can be physically replaced while the server remains running. The RAID controller then automatically rebuilds the array onto the new drive. Reseating the cable (A) is unlikely to resolve a drive failure. Replacing the RAID controller (B) is unnecessary if only one drive is suspected faulty. Reinstalling RAID drivers (D) would not fix a physical drive failure.

Topics

#RAID array#drive replacement#server storage#latency

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