2V0-21.23 Question 45
Single answerYou are managing a vSphere cluster with multiple ESXi hosts that have different generations of Intel CPUs. You need to ensure that virtual machines can seamlessly migrate between these hosts using vMotion. What is the first step you should take to ensure compatibility while minimizing performance impact?
- A
Enable vSphere Enhanced vMotion Compatibility (EVC) on the cluster and set the EVC mode to the baseline of the oldest CPU generation in the cluster.
- B
Upgrade the CPUs on all ESXi hosts in the cluster to match the latest CPU generation.
- C
Disable vSphere Enhanced vMotion Compatibility (EVC) and manually configure CPU feature masking on each host.
- D
Enable vSphere Fault Tolerance to bypass CPU compatibility checks for vMotion.
Show answer and explanation
Correct answer: A
Explanation
vSphere Enhanced vMotion Compatibility (EVC) ensures that all hosts in a cluster present a consistent set of CPU features to virtual machines, enabling seamless vMotion. By enabling EVC and setting the mode to the baseline of the oldest CPU generation, you avoid CPU feature mismatches and ensure compatibility without requiring hardware upgrades or manual configurations.
- A. Correct.
This is correct. Enabling EVC and setting the mode to the baseline of the oldest CPU ensures that all hosts present a compatible set of CPU features, allowing seamless vMotion without requiring hardware upgrades or manual configurations.
- B. Incorrect.
This is incorrect. Upgrading CPUs can be costly and time-consuming, and EVC is designed to address compatibility without requiring hardware changes.
- C. Incorrect.
This is incorrect. Disabling EVC and manually configuring CPU feature masking is error-prone and not recommended. EVC simplifies and automates the process of ensuring CPU compatibility across hosts.
- D. Incorrect.
This is incorrect. Fault Tolerance is not a solution for CPU compatibility in vMotion and serves a different purpose of providing continuous availability for virtual machines.