From mboxrd@z Thu Jan 1 00:00:00 1970 From: "H. Peter Anvin" Subject: Re: [ANNOUNCE] util-linux-ng v2.17 (stable) Date: Fri, 08 Jan 2010 13:43:47 -0800 Message-ID: <4B47A713.9060405@zytor.com> References: <20100108093302.GS1969@nb.net.home> Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit Cc: linux-kernel@vger.kernel.org, linux-fsdevel@vger.kernel.org, util-linux-ng@vger.kernel.org To: Karel Zak Return-path: Received: from terminus.zytor.com ([198.137.202.10]:52389 "EHLO terminus.zytor.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753871Ab0AHVoE (ORCPT ); Fri, 8 Jan 2010 16:44:04 -0500 In-Reply-To: <20100108093302.GS1969@nb.net.home> Sender: linux-fsdevel-owner@vger.kernel.org List-ID: On 01/08/2010 01:33 AM, Karel Zak wrote: > > fdisk: > - the fdisk command aligns newly created partitions to minimum_io_size > boundary ("minimum_io_size" is physical sector size or stripe chunk > size on RAIDs). > > - the fdisk command supports disks with alignment_offset now. > I think we should align, by default, much more aggressively than that -- because frequently we just don't know what the real physical alignment is (think of flash media, which uses large erase blocks underneath.) Windows aligns partitions 1 MB boundaries by default now -- I think that's probably a reasonably good idea, at least for any disk that's not tiny, say 256 MB or less. -hpa