Usually it is best practice to have the cluster expanded by a multiple of '3' because the gluster volume is of type 'replica 3' or 'replica 3 arbiter 1'. Such volumes can only be expanded by 3 bricks and the best practice is to have one node per brick.
Yet, the linux world gives freedom , so you can use 5 nodes like this: nodeA - data, volume1 nodeB - data ,volume1 nodeC - arbiter, volume1 ; arbiter , volume2 nodeD - data, volume2 nodeE - data, volume2 Best Regards, Strahil Nikolov В неделя, 1 ноември 2020 г., 23:12:21 Гринуич+2, Simon Scott <si...@justconnect.ie> написа: Apologies Strahill, I don’t think my question was very clear - my fault. In all the documentation on HCI that I’ve read, it clearly states the the 3 node HCI model can only be expanded in multiples of 3 nodes, i.e. 3, 6, 9, 12. I don’t know if I missed a basic explanation somewhere but is there any reason I can’t have a 5 node cluster with multiple Gluster Replica 3 volumes utilising any of the 5 nodes in the same Gluster Peer Group? Kind Regards Shimme > On 1 Nov 2020, at 17:17, Strahil Nikolov <hunter86...@yahoo.com> wrote: > > We do not know. > Nodes 3,4,5 need to be in the same gluster network like 1,2,3 . > Once you create your bricks (inode size >= 512) and mount them permanently, > you can create an extra volume or expand the current volumes. > > Once you have prepared the nodes, you can add them from UI. > > Best Regards, > Strahil Nikolov > > > > > > > В неделя, 1 ноември 2020 г., 12:44:40 Гринуич+2, si...@justconnect.ie > <si...@justconnect.ie> написа: > > > > > > I have a 3 node HCI setup with 2 Replica 3 volumes using nodes 1, 2 & 3 and > have added 2 additional Compute nodes to this Cluster. > > What is stopping me from adding nodes 4 & 5 as Gluster Peers and creating a > glusterfs Replica 3 Volume using nodes 3, 4 & 5? > > > Shimme > _______________________________________________ > Users mailing list -- users@ovirt.org > To unsubscribe send an email to users-le...@ovirt.org > Privacy Statement: https://www.ovirt.org/privacy-policy.html > oVirt Code of Conduct: > https://www.ovirt.org/community/about/community-guidelines/ > List Archives: > https://lists.ovirt.org/archives/list/users@ovirt.org/message/4QTQLBV4MYDQ3AHWG6LD53V4T5EUDSAT/ _______________________________________________ Users mailing list -- users@ovirt.org To unsubscribe send an email to users-le...@ovirt.org Privacy Statement: https://www.ovirt.org/privacy-policy.html oVirt Code of Conduct: https://www.ovirt.org/community/about/community-guidelines/ List Archives: https://lists.ovirt.org/archives/list/users@ovirt.org/message/HTJQTDGY3JRPCNBUBSIDINRTT32FUNJK/