linux-kernel - Re: document ext3 requirements

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Message-ID: <87k5984f4e.fsf@basil.nowhere.org>
Date:	Tue, 06 Jan 2009 16:40:33 +0100
From:	Andi Kleen <andi@...stfloor.org>
To:	Theodore Tso <tytso@....edu>
Cc:	"Martin K. Petersen" <martin.petersen@...cle.com>,
	Rob Landley <rob@...dley.net>,
	Alan Cox <alan@...rguk.ukuu.org.uk>,
	Pavel Machek <pavel@...e.cz>,
	Sitsofe Wheeler <sitsofe@...oo.com>,
	Duane Griffin <duaneg@...da.com>, Valdis.Kletnieks@...edu,
	Martin MOKREJŠ <mmokrejs@...osome.natur.cuni.cz>,
	kernel list <linux-kernel@...r.kernel.org>,
	Andrew Morton <akpm@...l.org>, mtk.manpages@...il.com,
	rdunlap@...otime.net, linux-doc@...r.kernel.org
Subject: Re: document ext3 requirements

Theodore Tso <tytso@....edu> writes:

> On Tue, Jan 06, 2009 at 11:41:46AM +0100, Matthias Andree wrote:
>> > Rob> Good to know, but "my laptop hard drive just died" is not the
>> > Rob> optimal time to learn these sorts of things.
>> > 
>> > http://www.garloff.de/kurt/linux/ddrescue/
>> 
>> While nice, it does not reconfigure the block layer to reduce retries;
>> at least not in a manner I see at a glance; no sysctl or SG_IO or ioctl
>> or fcntl anywhere.
>
> Well, Kurt Garloff wrote that program years and years ago.  I'm sure
> if someone created patches he'd probably accept them, though.  It's
> still the best program I've found for doing image backups in
> catastrophic situations.

Better would be just to incorporate the functionality as an option
into standard GNU dd. Then everyone would easily have access to it.

-Andi

-- 
ak@...ux.intel.com
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