On Aug 08, 2008 13:27 -0300, Balagopal Pillai wrote: > The storage server that served Lustre had a drive > failure on the 3ware 9650 raid6 array and it seemed to > rebuild fine. But almost all volumes in that array seems to have > filesystem corruption. The partitions with OS > didn't boot after i did the fsck as it deleted lots of inodes (entire > directory with lustre kernel and lots of config files went missing!). > Now the server is up and running again and i am trying to recover the > lustre volumes. After the fsck, the mdt mounted fine, but ost doesn't > mount. It gives the following errors. The running version of Lustre > before was 1.6.0.1 on centos 4 x86_64. The new install is centos 5 > x86_64 and lustre version 1.6.5.1 - > > mount.lustre: mount /dev/sda7 at /ost-home failed: No such file or directory > Is the MGS specification correct? > Is the filesystem name correct? > If upgrading, is the copied client log valid? (see upgrade docs) > > > (from dmesg) > LDISKFS FS on sda7, internal journal > LDISKFS-fs: mounted filesystem with ordered data mode. > LustreError: 3202:0:(obd_mount.c:247:ldd_parse()) cannot open > CONFIGS/mountdata: rc = -2 > LustreError: 3202:0:(obd_mount.c:1264:server_kernel_mount()) premount > parse options failed: rc = -2 > LustreError: 3202:0:(obd_mount.c:1560:server_fill_super()) Unable to > mount device /dev/sda7: -2 > LustreError: 3202:0:(obd_mount.c:1951:lustre_fill_super()) Unable to > mount (-2) > > > /dev/sda7 does exist. So i have decided against running fsck on > the other bigger Lustre volumes for now. > Is it possible to get sda7 mounted any other way? Thanks very much for > any suggestions and help.
It appears the missing file is "CONFIGS/mountdata" (possibly among other missing files). You can maybe recreate this with a --writeconf, depending on what the rest of the filesystem looks like. Cheers, Andreas -- Andreas Dilger Sr. Staff Engineer, Lustre Group Sun Microsystems of Canada, Inc. _______________________________________________ Lustre-discuss mailing list [email protected] http://lists.lustre.org/mailman/listinfo/lustre-discuss
