Nevertheless you could end up with a split brain situation because you've no quorum.
So it doesn't matter which kind of cluster you want to build, but you'll need a third node as a tiebreaker. I know that a 2 node cluster with drbd would work, but not in all cases, so do yourself a favor and get a third node. On 03.11.2017 09:15, Johan Bernhardsson wrote: > > On drbd you have one master and use iscsi to share the storage. If the > master fails it will fail over to the other. > > You have one up that will act as the iscsi storage and jump between > the hosts. > > If you run drbd master master ... Then you might get split brain and > that is not fun :) > > On November 3, 2017 09:04:49 Eduardo Mayoral <emayo...@arsys.es> wrote: > >> Just genuinely curious, how do you avoid split-brain situations with >> a 2-node setup (be it drbd, gluster or anything else)? >> >> Eduardo Mayoral Jimeno (emayo...@arsys.es) >> Administrador de sistemas. Departamento de Plataformas. Arsys internet. >> +34 941 620 145 ext. 5153 >> On 03/11/17 08:40, Johan Bernhardsson wrote: >>> >>> Check on drbd. I have used that to build a cluster for two servers. >>> It need some more work than a three node gluster conf but works well. >>> >>> I even think they have a white paper on how to do it for virtualization. >>> >>> /Johan >>> >>> On November 3, 2017 08:11:04 Artem Tambovskiy >>> <artem.tambovs...@gmail.com> wrote: >>> >>>> Looking for a design advise on oVirt provisioning. I'm running a >>>> PoC lab on single bare-metal host (suddenly it was setup with just >>>> Local Storage domain) and >>>> no I'd like to rebuild the setup by making a cluster of 2 physical >>>> servers, no external storage array available. That are the options >>>> here? is there any options to build cheap HA cluster with just 2 >>>> servers? >>>> >>>> Thanks in advance! >>>> >>>> Artem >>>> _______________________________________________ >>>> Users mailing list >>>> Users@ovirt.org <mailto:Users%40ovirt.org> >>>> http://lists.ovirt.org/mailman/listinfo/users >>>> >>> >>> >>> _______________________________________________ >>> Users mailing list >>> Users@ovirt.org >>> http://lists.ovirt.org/mailman/listinfo/users >> > > > _______________________________________________ > Users mailing list > Users@ovirt.org > http://lists.ovirt.org/mailman/listinfo/users -- SUSE Linux GmbH, GF: Felix Imendörffer, Jane Smithard, Graham Norton, HRB 21284 (AG Nürnberg)
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