Date: Mon, 5 Jan 2009 11:28:22 +0000
From: Alan Cox <alan@lxorguk.ukuu.org.uk>
To: Pavel Machek <pavel@suse.cz>
Cc: "Martin K. Petersen" <martin.petersen@oracle.com>,
       Rob Landley <rob@landley.net>,
       kernel list <linux-kernel@vger.kernel.org>,
       Andrew Morton <akpm@osdl.org>, tytso@mit.edu, mtk.manpages@gmail.com,
       rdunlap@xenotime.net, linux-doc@vger.kernel.org
Subject: Re: document ext3 requirements
Message-ID: <20090105112822.704ab434@lxorguk.ukuu.org.uk>
In-Reply-To: <20090105094504.GB27199@atrey.karlin.mff.cuni.cz>
References: <20090103123813.GA1512@ucw.cz>
	<200901041349.49906.rob@landley.net>
	<20090104225545.GF1913@elf.ucw.cz>
	<yq1r63i30bv.fsf@sermon.lab.mkp.net>
	<20090105094504.GB27199@atrey.karlin.mff.cuni.cz>
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> How much true is it for normal SATA drives? Are there some tests I can
> just run on a machine, powercycle it few times, and it tells me if my
> disk is non-ATOMIC-SECTORS?

No.

And even if it did writes to one sector can damage another. The
mathematical certainly stuff lives only in the world of maths. In the real
world everything is probabilities.

Alan
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