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Replicas are defined in the order bricks are listed in the volume
create command. So gluster volume create myvol replica 2
server1:/data/brick1 server2:/data/brick1 server3:/data/brick1
server4:/data/brick1 will replicate between server1 and server2 and
replicate between server3 and server4.<br>
<br>
See also
<a class="moz-txt-link-freetext" href="https://joejulian.name/blog/how-to-expand-glusterfs-replicated-clusters-by-one-server/">https://joejulian.name/blog/how-to-expand-glusterfs-replicated-clusters-by-one-server/</a><br>
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<div class="moz-cite-prefix">On 11/08/2016 03:28 PM, Lopez, Dan-Joe
wrote:<br>
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<p class="MsoNormal">Hello All,<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"> I’d like to automate a
gluster replica cluster in a way that allows me to later add
single servers on the fly. I can’t seem to understand from
the docs how I might achieve this. It seems logical that a
replica cluster needs to have at least 2 servers initially,
but thereafter, I see no reason that I shouldn’t be able to
add a single server to the cluster. From what I have read, it
seems that the number of servers I add in the future needs to
match the number of servers that I started with. <o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal" style="text-indent:.5in">e.g. replica 1
doesn’t really make sense, and isn’t allowed, but if I start
with replica n; I must always add n servers at a time to the
volume, I can’t just add one server to have an n+1 replica…<o:p></o:p></p>
<p class="MsoNormal" style="text-indent:.5in"><o:p> </o:p></p>
<p class="MsoNormal" style="text-indent:.5in">If anyone could
point me in the right direction here, I’d really appreciate
it.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal" style="vertical-align:bottom"><span
style="font-size:12.0pt;font-family:"Arial",sans-serif;color:black">Dan-Joe
Lopez
</span><span style="font-size:12.0pt;font-family:"Times
New Roman",serif"><o:p></o:p></span></p>
<p class="MsoNormal"><o:p> </o:p></p>
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