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I'm not aware of any way to recover from this situtation apart from
restoring the DB from a backup. If I was on your shoes, I would backup drbd
resource files usually stored within /var/lib/linstor.d on each satellite
node. Those are resource config files which linstor is managing centrally
from the controller to orchestrate the cluster. The chances are that you
will loose all those files once the satellites are brought back online, so
it would be a good idea to keep them as a point of reference when
rebuilding the controller. That being said, it might be a good idea to
consult professional support from Linbit if this is a production
environment.


On Wed, 7 Feb 2024 at 09:17, Adam Goryachev <
mailinglists@websitemanagers.com.au> wrote:

> Possibly a dumb question, but for a number of reasons, I have lost my
> linstor-controller node. I still have all other nodes up and running,
> but am missing any backup of the controller database. The main issue is
> that while the data is still available (both linstor-controller and
> backup systems) but both are offline for at least the next week.
>
> So, is there any other method to "re-create" or otherwise setup a
> controller on another node?
>
> I know, would be a good idea to setup some HA and/or some regular DB
> backup and replication to other nodes, but in the meantime, what are the
> options to get linstor-controller or at least linstor-satellites all up
> and running?
>
>