[pve-devel] About PVE Backup Integration Guide

[Fiona Ebner]

Am 05.03.25 um 07:36 schrieb Prashant Patil via pve-devel:
>   1.  How much part of the plugins method is done?

It is an initial, functional version of the API.

>   2.  How soon we can start the integration?

The patches were not applied yet, feedback is welcome. As Thomas already
said "We would be open to fast-track this effort for inclusion with
feedback from backup vendors". I'll see if I can get around to post a
rebased version this week.

>   3.  Is there any plugin method's documentation already available? If yes, could you please share?

It's part of the patches, see:
https://lore.proxmox.com/pve-devel/20241114150754.374376-10-f.ebner@proxmox.com/

>   1.  How to get allocated blocks/sectors from the snapshot of the raw format virtual disk attached to a running VM (disk present on the block based storage such as lvm, lvm-thin, etc)?
>   2.  How to get allocated blocks/sectors from the snapshot of the vmdk format virtual disk attached to a running VM?
>   3.  As per below link, certain storage types do not support snapshots. In such cases, what is the recommended way to take backup of the running VM?

The block tracking is ideally done via QEMU, then you don't require any
special features for the underlying storages. You can also do dirty
tracking for incremental backups. See the following for how this is done
internally with the proposed API:
https://lore.proxmox.com/pve-devel/20241114150754.374376-4-f.ebner@proxmox.com/
https://lore.proxmox.com/pve-devel/20241114150754.374376-5-f.ebner@proxmox.com/

Best Regards,
Fiona