Backup job Run Failed for Proxmox VM and Proxmox Template

Product version: 11.1

Last modified: 11 April 2025

Problem

The backup job run fails for Proxmox VM and Proxmox Template with the following error:

The transporter could not access the VM template disks. Disks are deactivated after template creation, create at least one VM using this template to reactivate the disks.

Background

This problem occurs because Proxmox VE deactivates LVM devices of VM disks when the VM is converted to a VM template (LVM storage only). This leads to Transporter not being able to read or writer data. Note that this only occurs with VM templates that have never been cloned to VM before. If a VM is cloned from this template, its disks are reactivated.

Solution

Clone a VM from the template to fix this issue.