[DRBD-user] linstor-proxmox snapshots causes tainted kernel

[Roland Kammerer]

On Fri, Nov 23, 2018 at 05:41:03PM +0100, Greb wrote:
> As against, the restoration by the WebGUI, I have the following
> message: "DRBD snapshot rollback is not implemented, please use
> 'linstor' to recover your data, use 'qm unlock' to unlock your VM at
> /usr/share/perl5/PVE/Storage/Custom/LINSTORPlugin.pm line 542."

Snapshots have never been well integrated in Proxmox. That was because
the different concepts of "snapshot restore" never really matched.
Historically, DM/LINSTOR restored a snapshot to a new resource. So the
best we could do was allowing to take a snapshot, but then tell the user
that she/he would need manual intervention to get old data out of the
snapshot. That was "as usable as it gets" for a long time.

> I suppose that this feature is coming later and we have to do it
> online while waiting ...

Yes. Now, with LINSTOR, we have in place restore of the last snapshot.
This is on the roadmap. I will update what will happen for the Proxmox
Plugin on github as milestones soon.

Regards, rck