I have a 2 server CentOS 6 replicated cluster which started out as version 3.3 and has been progressively updated and is now on version 3.6.1. Yesterday I added a new freshly installed CentOS 6.6 host and wanted to convert to replica 3 on one of my volumes, however I was unable to add the brick as it reported that all the brick hosts had to be at version 03060. Presumable some minimum compatibility is set on the volume, but I am struggling to find where. The info file under /va/lib/glusterd/vols/volname has op-version=2, client-op-version=2.
Any suggestions?
Thanks, Alastair
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