220-802 Question #376: Real Exam Question with Answer & Explanation

The correct answer is D: Swap hard drive and rebuild array. RAID 1 is a mirroring configuration where identical data is written simultaneously to two drives. When one drive fails, the other continues to operate with a full copy of all data - so the server remains functional and no data is lost. The correct next step is to hot-swap (or col

Question

A technician responds to a hardware issue with a server. The technician discovers that one of the hard drives in the server has failed. The server is set up in a RAID 1 configuration. Which of the following steps would the technician perform NEXT?

Options

ARemove the hard drive and back up the data
BRun CONVERT on the hard drive
CReboot the server
DSwap hard drive and rebuild array

Explanation

RAID 1 is a mirroring configuration where identical data is written simultaneously to two drives. When one drive fails, the other continues to operate with a full copy of all data - so the server remains functional and no data is lost. The correct next step is to hot-swap (or cold-swap) the failed drive with a new one and allow the RAID controller to rebuild the array by copying data from the surviving drive onto the replacement. There is no need to back up data first (A) because RAID 1 already provides redundancy. Running CONVERT (B) is a disk conversion command unrelated to this scenario. Simply rebooting (C) will not repair or replace a physically failed drive.

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