A system administrator is managing an enterprise application server hosting a hardware RAID 5 array composed of four NVMe solid-state drives. The server interface reports that the array status has changed to 'Degraded' because Disk 1 has failed completely and gone offline. Additionally, S.M.A.R.T. diagnostics report an elevated count of uncorrectable errors and low remaining endurance on Disk 3. Which TWO immediate recovery and risk-mitigation steps should the administrator execute? (Select TWO.)
- Perform a verified, immediate volume backup of the active RAID array data to external storage before attempting heavy drive rebuild operations.Answer
- Hot-swap the offline drive (Disk 1) with an operational replacement drive of equal or greater capacity to begin array reconstruction.Answer
- CDelete the existing RAID 5 configuration in the RAID controller setup utility and re-initialize the array as a RAID 0 volume.
- DExecute a full low-level format across all member drives in the array to clear S.M.A.R.T. error logs prior to disk replacement.
Answer
The technician should secure a verified full backup of the active volume data and hot-swap the failed offline drive (Disk 1) with a qualified replacement drive of equivalent or larger size to begin rebuilding array redundancy.
In a RAID 5 setup, losing a single drive degrades performance and eliminates fault tolerance. Immediate disk replacement with a hot-swappable drive of equal or greater capacity initiates the parity rebuild process. Because S.M.A.R.T. alerts indicate Disk 3 is also experiencing wear/errors, performing an immediate volume backup prior to triggering intense rebuild I/O prevents total data loss if Disk 3 suffers complete failure during the reconstruction process.
Step-by-Step Solution
Key Concept
RAID 5 Degraded State Recovery & Secondary Failure Risk Mitigation
Estimated Time:2m 0s