linux-kernel - Re: How to handle >16TB devices on 32 bit hosts ??

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Message-ID: <20090718142156.GC2682@basil.fritz.box>
Date:	Sat, 18 Jul 2009 16:21:56 +0200
From:	Andi Kleen <andi@...stfloor.org>
To:	Theodore Tso <tytso@....edu>, Andi Kleen <andi@...stfloor.org>,
	Andreas Dilger <adilger@....com>,
	device-mapper development <dm-devel@...hat.com>,
	Neil Brown <neilb@...e.de>, linux-fsdevel@...r.kernel.org,
	linux-raid@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: How to handle >16TB devices on 32 bit hosts ??

> 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.
 
-Andi
-- 
ak@...ux.intel.com -- Speaking for myself only.
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