Selective Restore Feature

[mmidgett]

Can we ask for a selective restore for VM's with multiple disks?

Use case: 1 VM with 2 Disks.
Disk 1 OS and Typical files - 200GB
Disk 2 Data storage for application - 1TB

If the corruption for the VM is only in the OS disk I would like the ability to selectively restore just the OS disk. Even if I have to only restore to a separate VM ID. I had to wait 10 hours for a slow restore to get data off an os Disk that was tied to a 1TB secondary disk. I know increasing the restore speed is top priority and that would have resolved this mostly.

I also saw the post in the dev group about live vm restores and that would be super helpful as well because I would have let the restore run long enough to get the data I needed off the OS disk and then killed the restore.

 

[fabian]

you can just power down the VM, then restore your desired single disk as raw image with proxmox-backup-client - either restore it directly over the existing raw disk/volume, or into a temp file and then qemu-img convert/qm importdisk. as with all manual disk manipulations, read twice before hitting enter, and when in doubt, try with a test guest first as you can absolutely overwrite the wrong thing and lose valuable data and/or time.

 

[Matthi]

Hi fabian

I had the same issue and solution as mmidgett. As I understand mmidgett correctly, he tries to restore a single disk from a backup made with the Proxmox VE Integration PBS backup solution. Not with proxmox-backup-client, right?

Can you provide an example how to restore a single disk?

I just found the command to restore a whole VM including all disks
qmrestore foo-nas-storage:backup/vm/307/2021-03-24T00:00:01Z 333 --storage extDataPool

Best regards,
Matthi

 

[mmidgett]

That is correct @Matthi. Inside of VE is where I would like selective restore.

 

[fabian]

yeah, that is not available (yet).

you can access the backup with proxmox-backup-client though to extract a single raw disk image (or multiple single disk images, or the associated VM and firewall config), and then use that image to overwrite your existing disk to achieve a selective restore.