Date: Tue, 15 Jan 2008 22:05:28 -0500
From: Rik van Riel <riel@redhat.com>
To: "Daniel Phillips" <phillips@google.com>
Cc: "Pavel Machek" <pavel@ucw.cz>, "Alan Cox" <alan@lxorguk.ukuu.org.uk>,
       "Theodore Tso" <tytso@mit.edu>, "Al Boldi" <a1426z@gawab.com>,
       "Valerie Henson" <val.henson@gmail.com>, linux-fsdevel@vger.kernel.org,
       linux-kernel@vger.kernel.org
Subject: Re: [Patch] document ext3 requirements (was Re: [RFD] Incremental
 fsck)
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On Tue, 15 Jan 2008 20:44:38 -0500
"Daniel Phillips" <phillips@google.com> wrote:

> Along with this effort, could you let me know if the world actually
> cares about online fsck?  Now we know how to do it I think, but is it
> worth the effort.

With a filesystem that is compartmentalized and checksums metadata,
I believe that an online fsck is absolutely worth having.

Instead of the filesystem resorting to mounting the whole volume
read-only on certain errors, part of the filesystem can be offlined
while an fsck runs.  This could even be done automatically in many
situations.

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