Multiple Proxmox Hosts With Duplicate Virtual Machine IDs on Shared NFS Storage

Conflicting Virtual Machine ID

If you have conflicting VM IDs while trying to backup to a shared storage this article may be able to help you

Make sure you have both VMs stopped
Click on the VM that you want to change ID’s on then hit more then clone

Stop Virtual Machine

Pick an unused Virtual Machine ID:

You can keep the name the same
Select a resource pool if applicable
Keep target storage as same as source
Click Clone

It will take a few seconds. You can look at the logs if you want to see the progress. Once it finishes you have successfully cloned the virtual machine.

Clone Virtual Machine and Pick New ID

Boot Newly Cloned Virtual Machine

Now you have two machines. Boot up the newly cloned machine just to make sure it works. Delete the old virtual machine. Click on the old virtual machine and hit more then remove.

Boot Cloned Virtual Machine and Delete Old VM

Destroy and Purge the VM

Once you hit remove a screen will come up with some options. The first screen will ask you to enter the VM ID to confirm the selection. Enter the old VM ID.

Select purge to remove old backups and jobs

Destroy and Purge the VM