From mboxrd@z Thu Jan 1 00:00:00 1970 From: "H. Peter Anvin" Subject: Re: ATA support for 4k sector size Date: Wed, 25 Feb 2009 15:57:27 -0800 Message-ID: <49A5DAE7.3060409@zytor.com> References: <1235600698-6446-1-git-send-email-matthew@wil.cx> <49A5CBF7.9000501@zytor.com> <49A5D76A.3010301@zytor.com> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Return-path: Received: from terminus.zytor.com ([198.137.202.10]:35393 "EHLO terminus.zytor.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1759641AbZBYX5q (ORCPT ); Wed, 25 Feb 2009 18:57:46 -0500 In-Reply-To: Sender: linux-ide-owner@vger.kernel.org List-Id: linux-ide@vger.kernel.org To: "Martin K. Petersen" Cc: Matthew Wilcox , linux-ide@vger.kernel.org, linux-kernel@vger.kernel.org, sandeen@redhat.com 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