linux-kernel - Re: ATA 4 KiB sector issues.

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Message-ID: <alpine.DEB.1.10.1003090733330.9819@uplift.swm.pp.se>
Date:	Tue, 9 Mar 2010 07:34:41 +0100 (CET)
From:	Mikael Abrahamsson <swmike@....pp.se>
To:	Tejun Heo <tj@...nel.org>
cc:	"linux-ide@...r.kernel.org" <linux-ide@...r.kernel.org>,
	lkml <linux-kernel@...r.kernel.org>,
	Daniel Taylor <Daniel.Taylor@....com>,
	Jeff Garzik <jeff@...zik.org>, Mark Lord <kernel@...savvy.com>,
	tytso@....edu, "H. Peter Anvin" <hpa@...or.com>,
	hirofumi@...l.parknet.co.jp,
	Andrew Morton <akpm@...ux-foundation.org>,
	Alan Cox <alan@...rguk.ukuu.org.uk>, irtiger@...il.com,
	Matthew Wilcox <matthew@....cx>, aschnell@...e.de,
	knikanth@...e.de, jdelvare@...e.de
Subject: Re: ATA 4 KiB sector issues.

On Mon, 8 Mar 2010, Tejun Heo wrote:

>  http://ata.wiki.kernel.org/index.php/ATA_4_KiB_sector_issues

Excellent summary.

> C-2. Windows XP depends on the traditional partition layout.

Is this really true? WD ships their EARS drives with an alignment tool 
that as far as I can understand, moves the partition so
it's aligned to 4KiB:

http://www.wdc.com/en/products/advancedformat/

So an XP fresh install (including letting XP partition the drive) will be 
misaligned, but if you clone xp onto a properly aligned partition (or run 
the tool and let it move the partition), it'll be ok. So saying that XP 
"depends" on traditional partition layout might be a bit of a streth?

-- 
Mikael Abrahamsson    email: swmike@....pp.se
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