VCP-VCF Administrator 2024 Question 298
Single answerA VMware Cloud Foundation administrator notices that virtual machine performance has degraded significantly after migrating workloads to a newly deployed workload domain. Upon investigation, the administrator identifies that the vSAN storage is experiencing high latency. Which action should the administrator take to troubleshoot and optimize the solution?
- A
Verify the vSAN disk group health and ensure no disks are marked as degraded or offline.
- B
Increase the virtual machine CPU and memory resources in the workload domain.
- C
Enable vSAN Deduplication and Compression to reduce storage usage.
- D
Check the network configuration and ensure vSAN traffic is properly configured on a dedicated vSAN VLAN.
Show answer and explanation
Correct answer: A
Explanation
When troubleshooting high latency in a vSAN environment, the health of the vSAN disk groups is a fundamental area to investigate. Physical disk failures, degraded disks, or misconfigured disk groups can lead to significant performance degradation. This step ensures that the storage hardware and configuration are functioning optimally before exploring other potential causes.
- A. Correct.
Verifying the vSAN disk group health is critical to identifying whether the high latency is due to physical disk issues or disk group misconfigurations. This is a key troubleshooting step for addressing vSAN performance issues.
- B. Incorrect.
Increasing virtual machine CPU and memory resources will not address storage latency issues. It may help the VM's compute performance but will not resolve the root cause of the storage problem.
- C. Incorrect.
Enabling vSAN Deduplication and Compression may provide storage efficiency, but it could add additional overhead to the vSAN cluster and exacerbate performance issues in a cluster already experiencing latency.
- D. Incorrect.
Checking the network configuration is important, but it is more relevant to addressing vSAN network connectivity or bandwidth issues rather than direct disk latency. While related, this step may not directly resolve the issue at hand.