SK0-003 · Question #616
After a server inspection, an administrator notices a single drive failure on a server configured with RAID 5. Which of the following is the NEXT step to start rebuilding the array?
The correct answer is C. Insert hot plug drive. With a single drive failure in a RAID 5 array, the next step to initiate the rebuild process and restore redundancy is to insert a hot-plug replacement drive.
Question
After a server inspection, an administrator notices a single drive failure on a server configured with RAID 5. Which of the following is the NEXT step to start rebuilding the array?
Options
- AReestablish the mirror array.
- BPerform online volume expansion.
- CInsert hot plug drive.
- DMove data to another volume.
How the community answered
(57 responses)- A4% (2)
- B12% (7)
- C79% (45)
- D5% (3)
Why each option
With a single drive failure in a RAID 5 array, the next step to initiate the rebuild process and restore redundancy is to insert a hot-plug replacement drive.
Reestablishing a mirror array is relevant for RAID 1 configurations, not RAID 5, which uses parity for redundancy rather than mirroring.
Online volume expansion is used to increase the storage capacity of an existing volume or array, not to rebuild an array after a drive failure.
For a RAID 5 array with a single failed drive, the array typically remains in a degraded but operational state due to parity. To rebuild the array and restore full redundancy, a new, functional hot-plug drive must be inserted into the server, upon which the RAID controller will begin the rebuild process, writing the missing data to the new drive using the parity information.
Moving data to another volume is a data migration or backup strategy, not the direct step to rebuild a RAID array after a single drive failure.
Concept tested: RAID 5 array rebuilding process
Source: https://learn.microsoft.com/en-us/windows-server/administration/performance-tuning/subsystem/raid-types
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