2V0-21.23 Question 51
Single answerA company has implemented a VMware vSphere cluster with High Availability (HA) enabled. During a planned maintenance window, an administrator manually places a host into Maintenance Mode. What happens to the virtual machines running on that host?
- A
The virtual machines are powered off and remain on the host.
- B
The virtual machines are migrated to other hosts in the cluster using vMotion.
- C
The virtual machines are suspended until the host exits Maintenance Mode.
- D
The virtual machines remain running on the host, and Maintenance Mode cannot be activated.
Show answer and explanation
Correct answer: B
Explanation
When a VMware vSphere host is placed into Maintenance Mode, all running virtual machines are automatically migrated to other hosts in the cluster using vMotion to ensure uninterrupted operation. VMware HA works in conjunction with vMotion to maintain availability and prevent disruption to workloads. This process ensures that the host can safely enter Maintenance Mode without impacting the virtual machines or their availability.
- A. Incorrect.
This is incorrect because VMware vSphere HA will not power off virtual machines during planned maintenance. Instead, vMotion is used to migrate running VMs.
- B. Correct.
This is correct because when a host is placed into Maintenance Mode, the system leverages vMotion to migrate all running virtual machines to other hosts in the cluster to ensure minimal disruption.
- C. Incorrect.
This is incorrect because virtual machines are not suspended during Maintenance Mode. VMware ensures workload continuity by migrating VMs to other hosts.
- D. Incorrect.
This is incorrect because a host cannot enter Maintenance Mode while running virtual machines. Maintenance Mode requires all VMs to be migrated or stopped.