質問です。

CentOS5.3のmdadmのRAID5で、Rebuild Statusが30%completeぐらいで0%に戻ります。
rebuildしている状態で、mountしようとすると、以下のような感じになります。
何か救済案はないでしょうか。

[root]# mount /data
mount: wrong fs type, bad option, bad superblock on /dev/md2,
missing codepage or other error
In some cases useful info is found in syslog - try
dmesg | tail or so

[root]# dmesg | tail
SCSI device sdk: 1953525168 512-byte hdwr sectors (1000205 MB)
sdk: Write Protect is off
sdk: Mode Sense: 00 3a 00 00
SCSI device sdk: drive cache: write back
md: syncing RAID array md2
md: minimum _guaranteed_ reconstruction speed: 1000 KB/sec/disc.
md: using maximum available idle IO bandwidth (but not more than 200000 KB/sec) for reconstruction.
md: using 128k window, over a total of 976759936 blocks.
EXT3-fs error (device md2): ext3_check_descriptors: Block bitmap for group 3968 not in group (block 834142208)!
EXT3-fs: group descriptors corrupted!