hi there, i have an issue with failover of the MGS device within my cluster.
i'm building a simple lustre environment; just one lustre file system (testfs) ... i have a two node cluster for my MGS/MDT; this is for an active/passive config with the MGS and MDT on different devices and mounted separately (not co-locating). i have a two node cluster for my OSTs, in an active/active config in that the first OST is on node one and the second OST is on node two. if i have the above, then heartbeat is happy with the OSTs and the MDT mountpoints being mounted on either node in the cluster. the MGS however is not. i get the following message when it tries to mount on the alternative node: ---8<--- mount.lustre: mount /dev/sdb at /lustre/testfs/mgs failed: Invalid argument This may have multiple causes. Are the mount options correct? Check the syslog for more info. ---8<--- i've noticed that if i consolidate and have my MGS and MDT on the same device/mountpoint on the MDS cluster nodes, all is well and the file system mounts on the alternative node perfectly. any ideas? i have ensured i created the file systems with --failnode and --mgsnode= for each MDS server, but no joy. i can see in a previous post to lustre-discuss someone having a similar, if not the same issue: http://lists.lustre.org/pipermail/lustre-discuss/2008-September/008634.html cheers _______________________________________________ Lustre-discuss mailing list [email protected] http://lists.lustre.org/mailman/listinfo/lustre-discuss
