On Monday 30 April 2012 18:17:02 Gandalf Corvotempesta wrote: > Is possible to add a third server for replication in a working cluster? > If yes, how can I do this? As far as I understand it (and for the current stable 3.2) there are two ways depending on what you want: When you want a third copy of the data, it seems you can't simply increase the replication-level and add a brick. Instead you have to stop usage, delete the volume (without deleting the underlying bricks of course) and then rebuild the volume with the new number of replication and bricks. Then self-heal should do the trick and copy the data onto the third machine. When you are fine with two-out-of-three replication, you would use two bricks per server and combine these three pairs of bricks for a distributed- replicated volume and spread the bricks to the servers so that each server has bricks of two different pairs. When you think of this when building the two- node setup, you would first build a distributed-replicated volume with two bricks per server (thus four bricks in two pairs). When the third node is needed, you first move one brick (with the replace-brick), then build the third pair of bricks. Have fun, Arnold -------------- next part -------------- A non-text attachment was scrubbed... Name: not available Type: application/pgp-signature Size: 198 bytes Desc: This is a digitally signed message part. URL: <http://gluster.org/pipermail/gluster-users/attachments/20120502/2c8fc8c4/attachment.pgp>
