VMware App Volumes Specialist (2021) — Question 66

An administrator is reviewing the root cause analysis of a failure event that resulted in vSAN Data Loss. The following information is known about the event:

1. The RAID battery-replacing procedure on one of the first vSAN cluster node took much more time than the vSAN administrator predicted.
2. The only Storage policy has a Primary level of Failures To Tolerate = 1.
3. Whilst the first host was in maintenance mode, another node failure occurred, causing da-ta loss in the vSAN cluster.

The administrator needs to update the procedure for completing maintenance on the cluster.

Which Maintenance Mode option should the administrator choose to ensure that data loss does not occur in the future?

Answer options

• A. No data migration
• B. Ensure accessibility
• C. No data migration with selected option 'Move powered-off and suspended virtual machines to other hosts in the cluster'
• D. Full data migration

Correct answer: D

Explanation

Choosing 'Full data migration' ensures that all virtual machines are migrated to other hosts before maintenance, which minimizes the risk of data loss during maintenance activities. The other options do not provide the same level of protection; 'No data migration' and 'No data migration with selected option' could leave VMs at risk if another node failure occurs. 'Ensure accessibility' does not guarantee the data is fully protected during the maintenance window.