On Wed, Mar 03, 2021 at 01:01:55PM +0100, Roland Kammerer wrote: > On Wed, Mar 03, 2021 at 12:36:10PM +0100, Greb wrote: > > In-Reply-To: <[email protected]> > > PLEASE do not hijack other mail threads :/ > > > Hello, I am interested in the high availability of the Linstor controller > > in a Proxmox environment with the new method that you recommend : > > https://www.linbit.com/drbd-user-guide/linstor-guide-1_0-en/#s > > -proxmox-ls-HA > > It seems that the prerequisite is 3 nodes. > > Is it possible to simply adapt this operation for only 2 nodes? > > No. I think the documentation is pretty clear about it. Note that this > node can be some dummy node that does not need to consume any storage. A > VM somewhere else, an old raspberry pi,...
What I want to add for users finding this thread in some archive: The third dummy node can be used just as quorum tiebreaker. It is just a diskless client for the DRBD resource hosting the LINSTOR controller DB. For that you need the third node. But you can configure drbdd::promoter just on the 2 nodes that actually have storage and which you want to be a LINSTOR controller. In that case node A and B can become a (the) LINSTOR controller, the dummy node C is only there as a diskless tiebreaker node for the DRBD resource. C does not contribute storage, it does not become a LINSTOR controller. Regards, rck _______________________________________________ Star us on GITHUB: https://github.com/LINBIT drbd-user mailing list [email protected] https://lists.linbit.com/mailman/listinfo/drbd-user
