From: Eric Sandeen <sandeen@redhat.com>
Subject: Re: fsck.ext4: Group descriptors look bad... trying backup blocks...
Date: Mon, 20 Apr 2009 11:26:00 -0500
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Cc: Theodore Tso <tytso@mit.edu>, linux-ext4@vger.kernel.org
To: Jeremy Sanders <jss@ast.cam.ac.uk>
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Jeremy Sanders wrote:
> On Mon, 20 Apr 2009, Eric Sandeen wrote:
...

>> One other question - do you make use of xattrs on this filesystem?
> 
> No.

I've commandeered about 10T of disk space to see if I can hit this.
Would you mind providing dumpe2fs -h output for your 8.2T filesystem so
I can exactly replicate the geometry?

Thanks,
-Eric