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[dm-devel] Re: How to handle >16TB devices on 32 bit hosts ??



On Jul 18, 2009  16:21 +0200, Andi Kleen wrote:
> > We don't have to rewrite fsck; most of the framework for supporting an
> > run-length-conding for compressed bitmaps is already in patches that
> > add > 32-bit block numbers to e2fsprogs; we've just been more focused
> > on getting 64-bit block numbers support merged than implementing
> > compressed bitmaps, but it's only one file that would need to be
> > added, and we might be able to steal the compressed bitmap support
> > from xfsprogs --- which does this already.
> 
> There are regular reports of xfs_repair failing on 32bit,
> even on volumes far smaller than 16TB.

It's a good thing we have ext4 then :-).

Cheers, Andreas
--
Andreas Dilger
Sr. Staff Engineer, Lustre Group
Sun Microsystems of Canada, Inc.


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