Strahil
2020-Jan-08 06:02 UTC
[Gluster-users] Replacing brick in replicated volume withoutreducing redundancy?
Maybe something like: gluster volume add-brick replica 4 arbiter 1 newbrick:/path-to-brick Best Regards, Strahil NikolovOn Jan 7, 2020 14:22, Stefan Seidel <privat at stefanseidel.info> wrote:> > Doesn't seem to be working, at least not in a straightforward way: > > $ gluster volume add-brick backupv01 host-06:/data/glusterfs/backupv01/brick06/gv0 > volume add-brick: failed: Incorrect number of bricks supplied 1 with count 3 > > $ gluster volume add-brick backupv01 replica 3 arbiter 1 host-06:/data/glusterfs/backupv01/brick06/gv0 > volume add-brick: failed: Operation failed > > (Probably because replica 3 arbiter 1 is the same as replica 2 arbiter 1) > > Stefan > > ________________________________ >> >> From: "Stefan" <gluster at stefanseidel.info> >> To: "Strahil Nikolov" <hunter86_bg at yahoo.com> >> Cc: "gluster-users" <gluster-users at gluster.org> >> Sent: Tuesday, 7 January, 2020 11:22:02 >> Subject: Re: [Gluster-users] Replacing brick in replicated volume without????????reducing redundancy? >> >> Thanks, that sounds interesting. From what I understand, arbiter setups only support multiple-of-2 data bricks, but maybe it's possible to replace the arbiter with a data brick, then replace the old data brick with an arbiter again. >> >> Stefan >> >> ________________________________ >>> >>> From: "Strahil Nikolov" <hunter86_bg at yahoo.com> >>> To: "gluster-users" <gluster-users at gluster.org>, "Stefan" <gluster at stefanseidel.info> >>> Sent: Tuesday, 7 January, 2020 10:18:11 >>> Subject: Re: [Gluster-users] Replacing brick in replicated volume without????????reducing redundancy? >>> >>> I'm not sure if you can increase (and later decrease) the replica count without stopping the volume. >>> Have you checked that as an option ? >>> >>> Best Regards, >>> Strahil Nikolov >>> >>> ? ???????, 7 ?????? 2020 ?., 3:58:11 ?. ???????-5, Stefan <gluster at stefanseidel.info> ??????: >>> >>> >>> Hi, >>> >>> I am looking to replace a brick in a replicated volume with arbiter (2+1 bricks). >>> Judging from this page: https://docs.gluster.org/en/latest/Administrator%20Guide/Managing%20Volumes/#replace-brick >>> it seems that the procedure is: simulate a brick failure, then add a replacement brick. >>> >>> Is that the only way to do it? Isn't there a way to migrate the data on the fly without running on reduced redundancy during the migration, like pvmove exists for LVM? >>> >>> Thanks, >>> >>> Stefan >>> ________ >>> >>> Community Meeting Calendar: >>> >>> APAC Schedule --------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.gluster.org/pipermail/gluster-users/attachments/20200108/88f42c2f/attachment-0001.html>