linux-kernel - Re: [patch] ext2/3: document conditions when reliable operation is possible

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Message-ID: <20090826001645.GN4300@elf.ucw.cz>
Date:	Wed, 26 Aug 2009 02:16:46 +0200
From:	Pavel Machek <pavel@....cz>
To:	Ric Wheeler <rwheeler@...hat.com>
Cc:	Theodore Tso <tytso@....edu>, Florian Weimer <fweimer@....de>,
	Goswin von Brederlow <goswin-v-b@....de>,
	Rob Landley <rob@...dley.net>,
	kernel list <linux-kernel@...r.kernel.org>,
	Andrew Morton <akpm@...l.org>, mtk.manpages@...il.com,
	rdunlap@...otime.net, linux-doc@...r.kernel.org,
	linux-ext4@...r.kernel.org, corbet@....net
Subject: Re: [patch] ext2/3: document conditions when reliable operation is
	possible

On Tue 2009-08-25 20:11:21, Ric Wheeler wrote:
> On 08/25/2009 07:53 PM, Pavel Machek wrote:
>>> Why don't you hold all of your most precious data on that single S-ATA
>>> drive for five year on one box and put a second copy on a small RAID5
>>> with ext3 for the same period?
>>>
>>> Repeat experiment until you get up to something like google scale or the
>>> other papers on failures in national labs in the US and then we can have
>>> an informed discussion.
>>
>> I'm not interested in discussing statistics with you. I'd rather discuss
>> fsync() and storage design issues.
>>
>> ext3 is designed to work on single SATA disks, and it is not designed
>> to work on flash cards/degraded MD RAID5s, as Ted acknowledged.
>
> You are simply incorrect, Ted did not say that ext3 does not work
> with MD raid5.

http://lkml.org/lkml/2009/8/25/312
									Pavel
-- 
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html
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