[Linux-cluster] GFS reports withdraw from cluster

[Ewald Beekman]

We have a RHEL4 2 node cluster running on
HP Integrity servers (rx4640, 4 Itanium's, 32GB RAM each).
The GFS is running on top of a SAN (EMC Cx380's).

We get these kinds of errors:
Mar 27 22:23:15 idefix kernel: GFS: fsid=alpha_cluster:orabck.0: fatal: invalid metadata block
Mar 27 22:23:15 idefix kernel: GFS: fsid=alpha_cluster:orabck.0:   bh = 16659526 (type: exp=5, found=4)
Mar 27 22:23:15 idefix kernel: GFS: fsid=alpha_cluster:orabck.0:   function = gfs_get_meta_buffer
Mar 27 22:23:15 idefix kernel: GFS: fsid=alpha_cluster:orabck.0:   file = /builddir/build/BUILD/gfs-kernel-2.6.9-75/up/src/gfs/dio.c, line = 1223
Mar 27 22:23:15 idefix kernel: GFS: fsid=alpha_cluster:orabck.0:   time = 1206652995 Mar 27 22:23:15 idefix kernel: GFS: fsid=alpha_cluster:orabck.0: about to withdraw from the cluster
Mar 27 22:23:15 idefix kernel: GFS: fsid=alpha_cluster:orabck.0: waiting for outstanding I/O
Mar 27 22:23:15 idefix kernel: GFS: fsid=alpha_cluster:orabck.0: telling LM to withdraw
Mar 27 22:23:15 idefix kernel: lock_dlm: withdraw abandoned memory
and then the filesystem is gone :-(

We are up2date with current patch levels:
GFS-6.1.15-1
GFS-kernel-2.6.9-75.12
cman-kernel-2.6.9-53.9
cman-1.0.17-0.el4_6.5

Not sure whether this is a SAN issue (that would be bad, 'cause
a lot of systemen are dependant of the SAN) or OS or inside
the GFS?

Any help is greatly appreciated.

Ewald...

-- 
Ewald Beekman, Security Engineer, Academic Medical Center,
dept. ADICT/AD  Server  en  Netwerkbeheer, The Netherlands
## Your mind-mint is:
Blessed is the man who, having nothing to say, abstains from giving
wordy evidence of the fact.
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