VCP-VCF Administrator 2024 Question 345
Select 3A VMware Cloud Foundation administrator is notified of a disk failure in their vSAN cluster. The cluster is configured with RAID-5 (erasure coding). The administrator wants to ensure that the cluster remains operational and prevents data loss during recovery. Which steps should the administrator take to recover from the disk failure?
- A
Replace the failed disk with a new disk and allow vSAN to automatically rebuild the affected components.
- B
Manually trigger a full data resynchronization operation across the cluster using the vSphere Client.
- C
Confirm that there is sufficient capacity in the cluster to rebuild data before replacing the failed disk.
- D
Monitor the health status of the disk group containing the failed disk to identify if additional failures are present.
- E
Remove the entire disk group containing the failed disk and recreate it after replacing the hardware.
Show answer and explanation
Correct answers: A, C, D
Explanation
To recover from a vSAN disk failure, the administrator needs to replace the failed disk to allow automatic data rebuilding, ensure there is sufficient capacity in the cluster for the rebuild process, and monitor the health status of the affected disk group to avoid additional issues. These steps ensure that vSAN’s self-healing mechanisms function properly, maintaining the integrity and availability of the data. Removing the entire disk group or manually triggering a resynchronization is not recommended as they can introduce unnecessary complexity or risk.
- A. Correct.
Replacing the failed disk is the recommended approach, as this allows vSAN to automatically rebuild the affected components based on the configured storage policy. This ensures data integrity and minimal manual intervention.
- B. Incorrect.
Manually triggering a full data resynchronization is not recommended, as vSAN automatically manages the resynchronization process as part of its self-healing mechanism.
- C. Correct.
Ensuring sufficient capacity in the cluster is critical because vSAN requires free space to rebuild the failed components. Without adequate capacity, the rebuild process cannot complete successfully.
- D. Correct.
Monitoring the health status of the disk group is essential to identify any other potential hardware issues that might impact the recovery process.
- E. Incorrect.
Removing the entire disk group is unnecessary and could result in further disruption. vSAN is designed to handle individual disk failures without requiring the removal of an entire disk group.