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fsck.gfs2 outputs "RG recovery impossible; I can't fix this file system"


 
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Top Forums UNIX for Advanced & Expert Users fsck.gfs2 outputs "RG recovery impossible; I can't fix this file system"
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Old 09-01-2009
fsck.gfs2 outputs "RG recovery impossible; I can't fix this file system"

I have a CentOS release 5.2 (Final)host running kernel 2.6.18-92.el5 with at raid 10 that had two mirrored drives fail. The drives were re-inserted and now the raid shows healthy (for now). I tried to mount but got an Input/output error. I then attempted a fsck:
fsck.gfs2 -y /dev/vg_01/uss_vol

This returned the following output (in part):

Block #3518628215 (0xd1ba0177) (21 of 33) is neither GFS2_METATYPE_RB nor GFS2_METATYPE_RG.
Attempting to repair the RG.
Block #3518628216 (0xd1ba0178) (22 of 33) is neither GFS2_METATYPE_RB nor GFS2_METATYPE_RG.
Attempting to repair the RG.
Block #3518628217 (0xd1ba0179) (23 of 33) is neither GFS2_METATYPE_RB nor GFS2_METATYPE_RG.
Attempting to repair the RG.
Block #3518628218 (0xd1ba017a) (24 of 33) is neither GFS2_METATYPE_RB nor GFS2_METATYPE_RG.
Attempting to repair the RG.
Block #3518628219 (0xd1ba017b) (25 of 33) is neither GFS2_METATYPE_RB nor GFS2_METATYPE_RG.
Attempting to repair the RG.
Block #3518628220 (0xd1ba017c) (26 of 33) is neither GFS2_METATYPE_RB nor GFS2_METATYPE_RG.
Attempting to repair the RG.
Block #3518628221 (0xd1ba017d) (27 of 33) is neither GFS2_METATYPE_RB nor GFS2_METATYPE_RG.
Attempting to repair the RG.
Block #3518628222 (0xd1ba017e) (28 of 33) is neither GFS2_METATYPE_RB nor GFS2_METATYPE_RG.
Attempting to repair the RG.
Block #3518628223 (0xd1ba017f) (29 of 33) is neither GFS2_METATYPE_RB nor GFS2_METATYPE_RG.
Attempting to repair the RG.
Block #3519021440 (0xd1c00180) (33 of 33) is neither GFS2_METATYPE_RB nor GFS2_METATYPE_RG.
Attempting to repair the RG.
(level 2 failed)
Level 3 RG check.
RG 2 is damaged: getting dist from index: 0x26a2e
* RG 1 at block 0x11 *** DAMAGED *** [length 0x26a2e]
RG 2 at block 0x26A3F intact [length 0x12a]
* RG 3 at block 0x26B69 *** DAMAGED *** [length 0x12a]
* RG 4 at block 0x26C93 *** DAMAGED *** [length 0x12a]
* RG 5 at block 0x26DBD *** DAMAGED *** [length 0x12a]
Error: too many bad RGs.
Error rebuilding rg list.
(level 3 failed)
RG recovery impossible; I can't fix this file system.


Now when I try to mount the file system I recieve the following output
[root@host/]# mount /123
/sbin/mount.gfs2: error mounting /dev/mapper/vg_01-123_vol on /123: No such file or directory

/123 exists

The etc/fstab line is:
/dev/vg_01/123_vol /123 gfs2 noatime 1 2

That line is the dame on all other hosts and is verified to be correct.

Any ideas how to get this FS mounted?

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