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

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Date:	Wed, 25 Feb 2009 22:23:25 -0500
From:	"Martin K. Petersen" <martin.petersen@...cle.com>
To:	Matthew Wilcox <matthew@....cx>
Cc:	Theodore Tso <tytso@....edu>,
	"Martin K. Petersen" <martin.petersen@...cle.com>,
	"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

>>>>> "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.

That doesn't change the RAID array alignment problem, however.  And we
need to prepare our partitioning tools to align correctly regardless.

-- 
Martin K. Petersen	Oracle Linux Engineering
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