Newly Released VMware 5V0-22.21 Exam PDF

This is because vSAN maintains a copy of the object on each host that is a member of the vSAN cluster. When a host enters maintenance mode, the object's replica is moved to another host in the cluster. If another host in the cluster fails during this time, it's possible that the updated replica of an object may be lost. However, vSAN will still use the stale replica of the object on the host that exited maintenance mode to service read requests, and will update the stale replica with the latest writes from the remaining host after the host exits maintenance mode.

It is important to note that this scenario assumes that the host failure is a permanent failure and that vSAN does not have any additional data protection methods enabled such as RAID-5, RAID-6, or Erasure Coding.

The correct answer is D. The latest writes from Host-2 are applied to the stale components of Host-1 once the host exits maintenance mode. This is because vSAN utilizes a "write-order fidelity" mechanism which ensures that any writes that were committed to the other hosts in the cluster before Host-1 entered maintenance mode are applied to the stale components of Host-1 as soon as the host exits maintenance mode. Reference:

C. Enter Maintenance Mode, confirm that pre check is fine, select "Full data migration", "Shutdown ESXi host", replace all capacity devices, "Restart ESXi host", replace capacity devices in disk groups, exit Maintenance Mode, confirm that raw capacity has been increased, and then repeat on ESXi host one-by-one. D. "Shutdown ESXi host", and replace all capacity devices. Repeat this sequence one-by-one.

Option C would allow you to perform a full data migration, which will move all data from the old capacity device to other devices. This option allows for the vSAN cluster to remain offline during the replacement process, and it allows the vSAN administrator to replace all the capacity devices at once.

Option D would also allow you to replace all capacity devices at once, however, the data is not moved from the old capacity device to other devices, this option also allows for the vSAN cluster to remain offline during the replacement process and it allows the vSAN administrator to replace all the capacity devices at once.

You can find more information on adding capacity to a vSAN cluster in the vSphere 7.0 documentation: and also in VMware blog like:

The two approaches the vSAN administrator can use to complete this task are C. Enter Maintenance Mode, confirm that pre check is fine, select "Full data migration", "Shutdown ESXi host", replace all capacity devices, "Restart ESXi host", replace capacity devices in disk groups, exit Maintenance Mode, confirm that raw capacity has been increased, and then repeat on ESXi host one-by-one and D. "Shutdown ESXi host", and replace all capacity devices. Repeat this sequence one-by-one. Reference: