[Linux-cluster] GFS file system corruption?

Matthew B. Brookover mbrookov at mines.edu
Mon Aug 29 21:43:13 UTC 2005


Good deal!  I will run more test to see what else I can find.  It still
seams odd that postmark started working also.  

thanks

Matt


On Mon, 2005-08-29 at 15:17, AJ Lewis wrote:

> On Mon, Aug 29, 2005 at 03:06:19PM -0600, Matthew B. Brookover wrote:
> > Aj, thank you for the quick response.
> > 
> > The patches changed the situation.  Postmark now runs without any
> > errors, gfs_fsck still has some problems. I do not understand why
> > postmark did not report any errors because the patches all appeared to
> > be for fsck.
> 
> Actually, this is normal output for the fsck.  The way GFS works is that any
> metadata that is deleted is actually converted to unused metadata blocks for
> later reuse instead of being freed completely.  The way the fsck tracks block
> use, it ends up converting all these blocks back to free blocks.  So basically
> this is what a normal fsck looks like when run on a gfs filesystem that had
> lots of files deleted.
>  
> > Output from gfs_fsck:
> > 
> > [root at illusion root]# gfs_fsck -y /dev/pool/u_as
> > Initializing fsck


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