A video editing workstation utilizes a two-drive software RAID 1 array for local project scratch space. During a rendering session, the system experiences severe input/output latency, and the operating system logs several disk read error events. Physical inspection reveals a high-pitched metallic clicking sound coming from one of the mechanical hard drives. Disk Management shows the volume status as Degraded, with Disk 1 marked as Offline/Errors, while Disk 0 remains Online and operational. Which TWO of the following actions should the technician take to restore full system redundancy while mitigating the risk of data loss?
- Immediately back up all critical files from the degraded volume on Disk 0 to a separate external or network location.Answer
- Replace Disk 1 with a new drive of equal or greater capacity, then initiate a volume rebuild using Disk Management.Answer
- CDelete the degraded volume, reformat Disk 0 and Disk 1, and recreate the RAID 1 array from scratch.
- DRun an intensive surface disk repair utility (chkdsk /f /r) on Disk 1 to remap corrupted sectors back into the existing array.
Answer
The technician should immediately back up critical data from the surviving drive (Disk 0) to an external or network location and then replace the failed drive (Disk 1) with a drive of equal or greater capacity to rebuild the array.
When a RAID 1 array becomes degraded due to a mechanical failure in one disk, the surviving disk contains all original data. First backing up the surviving disk guards against total data loss if the healthy disk fails under heavy load during reconstruction. Second, physically replacing the clicking, failed disk with a known-good disk of equal or higher capacity followed by initiating a software rebuild restores fault tolerance without losing existing data.
Step-by-Step Solution
Key Concept
RAID 1 Degraded State Recovery & Data Preservation Procedures