VM shutdown when performing snapshot restore in VMware vSphere.

Or, VM shutdown automatically when restoring to previous snapshot restore point.

Descriptions: This not an error… Its normal behaviour of Virtual Machine snapshot restoration feature. Depending upon the state when the snapshot was taken, virtual machine will go to that state while performing the snapshot restore.

Example-1: If the Virtual Machine is Powered On and you have taken a snapshot in this state, this is not going to reboot or shutdown the VM when you perform the Revert Snapshot task from Snapshot manager.

Example-2: If you the Virtual Machine is Powered Off and you have taken a snapshot in this state, this is going to shutdown the Virtual Machine when you perform the Revert Snapshot task from snapshot manager.

Note: No worries, in both conditions you should be able to get your VM up and running. If the VM get powered off while performing the snapshot restore, you can just power it on soon after the snapshot restore operation is completed successfully.

Cheers, If you have any query of feedback on this, please write me back..

Understanding Virtual Machine Snapshots in VMware!

Or, Virtual Machine Snapshot in VMware – How it works?

VMware Virtual Machine snapshot is very useful tool to take instant temporary backup of a virtual machine anytime. It preserves the state of a virtual machine at any specific point of time. If you are performing any activity which may cause some changes on application or OS level, it’s better to have a snapshot of the VM before proceeding with the activity.

In-case somethings went wrong, you can revert the Virtual Machine’s snapshot to the last recent well stable state in few minutes (depending on the VM size).

A VM snapshot preserves states of following files while performing VM snapshot:

1. Configuration State

2. Memory State

3. Disk State