change from LVM disk to ZFS or snapshot-able filesystem

[escaparrac]

Hi guys.

I have all my "main" VMs and LXCs in a 500gb nvme disk.

As you can see, this disk is LVM, and I can't do snapshot backups from there. As I have some live services, I don't want them to shut down unless it is super necessary.

All that VMs and LXCs are backed up outside that disk. My proxmox is living in two dedicated ssds.

I would like to:

- if possible, change the filesystem from that disk to ZFS or LVM-THIN
- if not possible, format that disk, and create a new storage with the correct filesystem
- move all the VMs and LXCs (can I just do backups from proxmox to the new filesystem?)
- start them again and be able to schedule the Snapshots.

Before starting, I would like to know if you think this is correct or if there is any other way of doing this.

Best.

 

[Dunuin]

Yes, backup guests, wipe disk, create a new thin pool or zfs pool using that wiped disk, restore guests from backup to the new storage. All can be done using the GUI when on PVE7.X.

 

[escaparrac]

Yes, backup guests, wipe disk, create a new thin pool or zfs pool using that wiped disk, restore guests from backup to the new storage. All can be done using the GUI when on PVE7.X.

Thank you Mr.

For that kind of disk, ZFS would be worth?

 

[LnxBil]

I can't do snapshot backups from there.

A snapshot is not a backup and the "backup snapshot" method in PVE will still work, because the snapshot is virtual inside of QEMU, so that the backup will always be consistent (with running qemu agent inside of the VM).