An IT technician receives an automated notification from a server utilizing a two-disk hardware RAID 1 array. The alert reports that Disk 0 has reached a S.M.A.R.T. predictive failure threshold and the volume status is degraded, although the operating system is still online and functional. Which of the following is the best immediate action to restore full redundancy?
- Replace Disk 0 with an equivalent replacement drive and initiate an array rebuild.Answer
- BFormat the array volume and restore the data from the most recent system backup.
- CConvert the degraded RAID 1 volume into a RAID 0 array to bypass the failing drive.
- DDelete the array partition and perform a low-level disk initialization on Disk 0 to clear the S.M.A.R.T. status.
Answer
Replace Disk 0 with an equivalent replacement drive and initiate an array rebuild.
Replacing the failing disk and allowing the controller to rebuild the mirror is the correct procedure for a degraded RAID 1 array. Because RAID 1 maintains an exact duplicate of the volume on the second drive, data remains fully accessible and redundancy can be restored by replacing only the compromised drive.
Step-by-Step Solution
Key Concept
RAID 1 Degraded State Recovery
Estimated Time:1m 15s