VCP-VMC 2024 Question 180
Select 3An organization has deployed a VMware Cloud environment and is experiencing performance issues with their storage. The administrator suspects that the storage performance is being affected by high latency and insufficient IOPS. Which of the following actions should the administrator take to determine and improve storage performance?
- A
Analyze datastore performance metrics such as latency and IOPS from the vSphere Client.
- B
Enable deduplication and compression on the datastore to reduce storage utilization.
- C
Identify and resolve any VM-level storage contention by analyzing vSAN Performance Service metrics.
- D
Increase the queue depth of the storage adapters used by the ESXi hosts.
- E
Check the underlying storage array performance using vendor-specific tools.
Show answer and explanation
Correct answers: A, C, E
Explanation
To determine storage performance issues, the administrator must analyze datastore performance metrics and vSAN-specific metrics (if applicable) to identify bottlenecks. Additionally, using vendor-specific tools to check the underlying storage array ensures the issue is not caused by the storage hardware itself. These actions collectively help isolate and address the root cause of the performance issues.
- A. Correct.
Analyzing datastore performance metrics such as latency and IOPS from the vSphere Client is a recommended first step to identify storage performance bottlenecks.
- B. Incorrect.
Enabling deduplication and compression is a storage optimization feature but does not directly address storage performance issues such as high latency or insufficient IOPS.
- C. Correct.
Identifying VM-level storage contention using vSAN Performance Service metrics helps pinpoint specific VMs causing storage performance degradation in a vSAN environment.
- D. Incorrect.
Increasing the queue depth is an advanced configuration that can help in some cases, but it is not the first step to determine storage performance issues.
- E. Correct.
Checking the underlying storage array performance using vendor-specific tools helps to validate if the issue lies within the storage backend.