linux-kernel - Re: ATA support for 4k sector size

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Date:	Fri, 11 Dec 2009 15:05:56 +0800
From:	James Andrewartha <jamesa@....com.au>
To:	"Martin K. Petersen" <martin.petersen@...cle.com>
CC:	Matthew Wilcox <matthew@....cx>, Theodore Tso <tytso@....edu>,
	"H. Peter Anvin" <hpa@...or.com>, linux-ide@...r.kernel.org,
	linux-kernel@...r.kernel.org, sandeen@...hat.com
Subject: Re: ATA support for 4k sector size

Martin K. Petersen wrote:
>>>>>> "Matthew" == Matthew Wilcox <matthew@....cx> writes:
> 
> Matthew> Lowest aligned logical block address=0
> 
> Matthew> This disagrees with Martin's assertion.
> 
> The original roadmap was to transition to 4KB sectors in 2006,
> coinciding with the Vista release.
> 
> Given how long this has taken (we're now talking ~2011 for GA) it may
> very well be that the alignment knobs will be unused because everybody
> will be using Vista or 7 by then.

The plan does seem to have changed - WD's shipping 4k sector drives that are 
sane and require a drive jumper or tool for WinXP and old cloning utilities.

http://techreport.com/discussions.x/18115
http://wdc.com/en/products/advancedformat/
http://www.wdc.com/wdproducts/library/whitepapers/en/2579-771430-A00.pdf

-- 
James Andrewartha
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