How to Exclude Disk on Proxmox VM from Backup

This guide explains how to exclude a disk on the virtual machine running on Proxmox VE from backup.

To exclude a disk from backup for a VM in Proxmox VE:

1. Open the Proxmox Web Console.
2. Select the VM.
3. Go to Hardware.
4. Double-click the disk you want to exclude.

5. Select Advanced.

6. In the disk settings window, uncheck Backup.

7. Save the changes.

After that, the disk will not be included in vzdump / PBS backups.

Proxmox will internally add backup=0 to the VM disk configuration, for example:

scsi1: local-lvm:vm-100-disk-1,backup=0

You can also edit it manually in:

/etc/pve/qemu-server/<VMID>.conf

Example:

scsi1: /dev/disk/by-id/ata-ST4000...,backup=0