2V0-21.23 Question 316
Single answerAn administrator is troubleshooting performance issues on a virtual machine running a critical application. The administrator suspects CPU resource contention on the ESXi host. Which tool or feature in vSphere should the administrator use to confirm CPU contention and analyze its impact?
- A
vSphere Client - Performance Charts
- B
DRS (Distributed Resource Scheduler) Recommendations
- C
vSphere High Availability (HA) Reports
- D
ESXi Shell Commands
Show answer and explanation
Correct answer: A
Explanation
The vSphere Client - Performance Charts is the most appropriate tool to confirm and analyze CPU contention. It allows the administrator to view real-time and historical performance data, including metrics like CPU Ready Time, which indicates how long a virtual machine is waiting for physical CPU resources. This insight helps identify and resolve resource contention issues effectively.
- A. Correct.
vSphere Client - Performance Charts provide detailed real-time and historical metrics on CPU, memory, disk, and network usage for both hosts and virtual machines. This tool is ideal for identifying resource contention issues like CPU contention.
- B. Incorrect.
DRS (Distributed Resource Scheduler) Recommendations are useful for load balancing across clusters, but they do not provide detailed metrics or historical data to analyze CPU contention on a specific host or virtual machine.
- C. Incorrect.
vSphere High Availability (HA) Reports focus on host and VM availability during failures and do not provide resource usage metrics for troubleshooting performance issues like CPU contention.
- D. Incorrect.
ESXi Shell Commands can be used for advanced troubleshooting, but they are not the primary or most efficient tool for analyzing CPU contention. The vSphere Client provides a more accessible and graphical view of the required metrics.