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

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Message-ID: <49A5DAE7.3060409@zytor.com>
Date:	Wed, 25 Feb 2009 15:57:27 -0800
From:	"H. Peter Anvin" <hpa@...or.com>
To:	"Martin K. Petersen" <martin.petersen@...cle.com>
CC:	Matthew Wilcox <matthew@....cx>, 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:
> 
> Modern Windows aligns the first partition on a 1 MB boundary.
> 
> As far as disks go, initially the plan was to have "legacy" branded
> drives with 63-sector alignment.  But I think that has been abandoned in
> favor of instant one-time formatting.  I.e. you can pick your poison
> *once* and that formatting will be done in constant time.  Any
> subsequent changes to blocking and alignment will require a real
> low-level format.
> 

Why one-time?

	-hpa
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