I see. So if I switch to a different cluster quorum model, I may get split-brain which would need manual intervention should a node go missing? Adding an arbiter involves creating a volume from scratch? You can't just add it to an existing volume. On Fri, Jan 20, 2017 at 2:52 PM, Gambit15 <dougti+gluster@xxxxxxxxx> wrote: >> Type: Distributed-Replicate >> Number of Bricks: 2 x 2 = 4 > > > With that setup, you lose quorum if you lose any one node. > Brick 1 replicates to brick 2, and brick 3 replicates to brick 4. If any one > of those goes down, quorum falls to <51%, which locks the brick under the > default settings. > > If you've only got 4 servers to play with, I suggest you move to replication > 3 arbiter 1. Put the arbiter for servers 1 & 2 on server 3, and the arbiter > for servers 3 & 4 on server 1. > > https://gluster.readthedocs.io/en/latest/Administrator%20Guide/arbiter-volumes-and-quorum/ > _______________________________________________ Gluster-users mailing list Gluster-users@xxxxxxxxxxx http://lists.gluster.org/mailman/listinfo/gluster-users
