[Linux-cluster] Cluster1, RHEL4 gfs_fsck

Wes Young wcyoung at buffalo.edu
Mon May 19 20:18:51 UTC 2008

I'm having a little trouble with an older installation of RHEL4,  

One of my cluster nodes crashed the other day, when I brought it back  
up I got a the error:

GFS: Trying to join cluster "lock_dlm", "oss:mydisk"
GFS: fsid=oss:mydisk.0: Joined cluster. Now mounting FS...
GFS: fsid=oss:mydisk.0: jid=0: Trying to acquire journal lock...
GFS: fsid=oss:mydisk.0: jid=0: Looking at journal...
attempt to access beyond end of device
sdb: rw=0, want=19149432840, limit=858673152
GFS: fsid=oss:mydisk.0: fatal: I/O error

I tried to run the gfs_fsck and get a Segmentation fault.

So, I upgraded the cluster software (latest RHEL4 tag), compile and get:

# gfs_fsck -V
GFS fsck DEVEL.1211222576 (built May 19 2008 15:05:16)
Copyright (C) Red Hat, Inc.  2004-2005  All rights reserved.

[root at sproc cluster]# gfs_fsck -vv /dev/sdb
Initializing fsck
Initializing lists...
(bio.c:140)     Writing to 65536 - 16 4096
Initializing special inodes...
(file.c:45)     readi:  Offset (400) is >= the file size (400).
(super.c:226)   5 journals found.
Validating Resource Group index.
Level 1 check.
Segmentation fault

Which is a little further (it didn't do the Level 1 check) than I got  
last time, but still bails on me.

not being a GFS pro here, and a little gfs_tool list.. work, the  
volume seems to be there, just feels like the server crash damaged  
some important bits along the way.

The data on this drive isn't that critical, just looking to see if i'm  
missing something dumb, or verification that the partition is hosed  
(or just not worth trying to really recover the 400 gigs of data at  
this point).

If this should go to the devel list, please let me know.
Wes Young
Network Security Analyst
CIT - University at Buffalo
| my OpenID:        | http://tinyurl.com/2zu2d3 |

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