VCP-VCF Administrator 2024 Question 297
Single answerAn administrator managing a VMware Cloud Foundation environment notices degraded performance in one of the workload domains. Upon investigation, the administrator observes high latency and frequent disk I/O errors in the vSAN cluster. Which step should the administrator prioritize to troubleshoot and optimize the environment?
- A
Check the health of the vSAN disk groups and replace any failing drives.
- B
Increase the number of vSAN nodes in the cluster to distribute the workload.
- C
Upgrade the vCenter Server to the latest version for improved performance.
- D
Reconfigure the vSAN storage policy to use RAID-0 for faster performance.
Show answer and explanation
Correct answer: A
Explanation
The administrator should focus on identifying and resolving hardware issues in the vSAN disk groups, as these are often the primary cause of degraded performance and disk I/O errors. Checking and replacing failing drives ensures the environment operates optimally and prevents further degradation. While other actions may provide long-term benefits, they do not address the immediate issue effectively.
- A. Correct.
Checking the health of vSAN disk groups is critical because degraded or failing disk drives are often the root cause of I/O errors and high latency. This step helps identify and resolve hardware-related issues.
- B. Incorrect.
Increasing the number of vSAN nodes may help distribute the workload, but it does not directly address the issue of high latency and I/O errors caused by disk group health problems.
- C. Incorrect.
Upgrading the vCenter Server may enhance overall management and features, but it is not a specific action for resolving vSAN performance issues related to disk health.
- D. Incorrect.
Reconfiguring the vSAN storage policy to use RAID-0 may improve performance, but it sacrifices redundancy and does not address the root cause of the disk I/O errors.