Maybe booth can take care when it dies and powers up the resource in the DR. Best Regards,Strahil Nikolov On Thu, Apr 8, 2021 at 10:28, Ulrich Windl<ulrich.wi...@rz.uni-regensburg.de> wrote: >>> Reid Wahl <nw...@redhat.com> schrieb am 08.04.2021 um 08:32 in Nachricht <CAPiuu9-uEY_8JoDvT-p4NfNu8LzVkogyRx=uzmtz0yf--+r...@mail.gmail.com>: > On Wed, Apr 7, 2021 at 11:27 PM d tbsky <tbs...@gmail.com> wrote: > >> Reid Wahl <nw...@redhat.com> >> > I don't think we do require fencing for single-node clusters. (Anyone at >> Red Hat, feel free to comment.) I vaguely recall an internal mailing list >> or IRC conversation where we discussed this months ago, but I can't find it >> now. I've also checked our support policies documentation, and it's not >> mentioned in the "cluster size" doc or the "fencing" doc. >> >> since the cluster is 100% alive or 100% dead with single node, I >> think fencing/quorum is not required. I am just curious what is the >> usage case. since RedHat supports it, it must be useful in real >> scenario. >> > > Disaster recovery is the main use case we had in mind. See the RHEL 8.2 > release notes: > - > https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux/8/htm > l/8.2_release_notes/rhel-8-2-0-release#enhancement_high-availability-and-clus > ters
I wonder: How does desaster recovery look like if a plane crashed into your single-node of the cluster? (Without a cluster you would have some off-site backup, and probably some spare hardware off-site, too) HA in that case is really interesting, as setting up the new hardware has to be done manually... > > I thought I also remembered some other use case involving MS SQL, but I > can't find anything about it so I might be remembering incorrectly. > > > -- > Regards, > > Reid Wahl, RHCA > Senior Software Maintenance Engineer, Red Hat > CEE - Platform Support Delivery - ClusterHA _______________________________________________ Manage your subscription: https://lists.clusterlabs.org/mailman/listinfo/users ClusterLabs home: https://www.clusterlabs.org/
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