I have a large cluster (374 nodes) that I have just upgraded from 3.3 to 3.4.0-21. I have run mmchconfig release=latest and I now have "minReleaseLevel 184.108.40.206." My filesystems are at varying version levels - 9.03, 10.01, and 11.05. I tried running "mmchfs fs01 -V full" on one of the 9.03 filesystems, and it came back with "File system version 12.10 is not supported on 1 nodes in the cluster." I have no clue which node this is or why it is not supported. Is this really telling me that there is exactly one node that doesn't support this, or did it simply stop when it found one node. I have gone through the entire cluster and verified that every node is running version 3.4.0-21. Is there some configuration setting that can cause this?
Upgrading to 3.5 is not an option at this time as I still have several 32-bit nodes.