Gluster users - Oct 2011 - Expand replicated bricks to more nodes/change replica count

Hi list

I have set up several volumes on a two-node Gluster setup using
"replica 2" configurations. I would like to add two more nodes to the
trusted pool so that all volumes are replicated on 4 nodes. I wonder
if that can be done online, but after doing some research on this I
didn't find evidence that it's possible to change the replica count
_after_ the volume has been created.

Would I have to stop the volumes, set up a new volume with a replica
of 4, and then start the volume again? Or is there a way to do it
online?

Thanks
Daniel

I believe you will have to re-create your volume.

I have a feature request in for this too. 
http://bugs.gluster.com/show_bug.cgi?id=3606

Jeff White
Linux/Unix Systems Engineer
University of Pittsburgh - CSSD
Jaw171 at pitt.edu


On 10/20/2011 08:41 AM, Daniel Manser wrote:
> Hi list
>
> I have set up several volumes on a two-node Gluster setup using
> "replica 2" configurations. I would like to add two more nodes to
the
> trusted pool so that all volumes are replicated on 4 nodes. I wonder
> if that can be done online, but after doing some research on this I
> didn't find evidence that it's possible to change the replica count
> _after_ the volume has been created.
>
> Would I have to stop the volumes, set up a new volume with a replica
> of 4, and then start the volume again? Or is there a way to do it
> online?
>
> Thanks
> Daniel
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