VCP-VMC 2024 Question 38
Select 3A VMware administrator needs to perform maintenance on a host in a vSphere cluster and decides to migrate virtual machines to another host using vSphere vMotion. During the migration planning, the administrator notices that some virtual machines are eligible for migration, but others are not. What are possible reasons why some virtual machines are ineligible for vSphere vMotion?
- A
The virtual machine is connected to a local-only storage device.
- B
The virtual machine's memory size exceeds the physical memory available on the destination host.
- C
The virtual machine is configured with an unsupported virtual network adapter for vSphere vMotion.
- D
The destination host has a different CPU architecture, and Enhanced vMotion Compatibility (EVC) is not enabled.
- E
The virtual machine is powered off.
Show answer and explanation
Correct answers: A, B, D
Explanation
vSphere vMotion enables live migration of running virtual machines between hosts without downtime. However, certain prerequisites must be met for a successful migration. Shared storage or storage accessibility, sufficient resources on the target host, and compatibility of CPU architectures are critical factors. If any of these conditions are not met, the vMotion process will not proceed. Powered-off virtual machines do not utilize vMotion but instead rely on cold migration methods.
- A. Correct.
vSphere vMotion requires shared storage or storage that is accessible by both the source and destination hosts. If the virtual machine's disk resides on local-only storage, it cannot be migrated using vSphere vMotion.
- B. Correct.
If the virtual machine's memory size exceeds the physical memory available on the destination host, the migration will fail due to insufficient resources on the target host.
- C. Incorrect.
vSphere vMotion does not have specific limitations based on virtual network adapters. Supported virtual network adapters are not a factor for vMotion eligibility.
- D. Correct.
If the source and destination hosts have different CPU architectures and Enhanced vMotion Compatibility (EVC) is not enabled, the virtual machine cannot migrate because the CPU feature sets do not match.
- E. Incorrect.
A powered-off virtual machine does not use vSphere vMotion for migration. Instead, it can be migrated using a simple cold migration process.