<div dir="ltr"><br><div class="gmail_extra"><br><div class="gmail_quote">On Tue, Feb 27, 2018 at 5:35 PM, Dave Sherohman <span dir="ltr"><<a href="mailto:dave@sherohman.org" target="_blank">dave@sherohman.org</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><span class="">On Tue, Feb 27, 2018 at 04:59:36PM +0530, Karthik Subrahmanya wrote:<br>
> > > Since arbiter bricks need not be of same size as the data bricks, if you<br>
> > > can configure three more arbiter bricks<br>
> > > based on the guidelines in the doc [1], you can do it live and you will<br>
> > > have the distribution count also unchanged.<br>
> ><br>
> > I can probably find one or more machines with a few hundred GB free<br>
> > which could be allocated for arbiter bricks if it would be sigificantly<br>
> > simpler and safer than repurposing the existing bricks (and I'm getting<br>
> > the impression that it probably would be).<br>
><br>
> Yes it is the simpler and safer way of doing that.<br>
><br>
> > Does it particularly matter<br>
> > whether the arbiters are all on the same node or on three separate<br>
> > nodes?<br>
> ><br>
> No it doesn't matter as long as the bricks of same replica subvol are not<br>
> on the same nodes.<br>
<br>
</span>OK, great. So basically just install the gluster server on the new<br>
node(s), do a peer probe to add them to the cluster, and then<br>
<br>
gluster volume create palantir replica 3 arbiter 1 [saruman brick] [gandalf brick] [arbiter 1] [azathoth brick] [yog-sothoth brick] [arbiter 2] [cthulhu brick] [mordiggian brick] [arbiter 3]<br></blockquote><div>gluster volume add-brick <volname> replica 3 arbiter 1 <arbiter 1> <arbiter 2> <arbiter 3><br></div><div>is the command. It will convert the existing volume to arbiter volume and add the specified bricks as arbiter bricks to the existing subvols.<br></div><div>Once they are successfully added, self heal should start automatically and you can check the status of heal using the command,<br></div><div>gluster volume heal <volname> info<br><br></div><div>Regards,<br>Karthik<br></div></div><br></div></div>