From mboxrd@z Thu Jan 1 00:00:00 1970 From: Ric Wheeler Subject: Re: impact of 4k sector size on the IO & FS stack Date: Sun, 11 Mar 2007 22:45:24 -0400 Message-ID: <45F4BEC4.5090402@emc.com> References: <45F48809.2060908@emc.com> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Return-path: Received: from mexforward.lss.emc.com ([128.222.32.20]:46017 "EHLO mexforward.lss.emc.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S964826AbXCLCpe (ORCPT ); Sun, 11 Mar 2007 22:45:34 -0400 In-Reply-To: Sender: linux-ide-owner@vger.kernel.org List-Id: linux-ide@vger.kernel.org To: Jan Engelhardt Cc: linux-scsi , linux-fsdevel@vger.kernel.org, Linux-ide Jan Engelhardt wrote: > On Mar 11 2007 18:51, Ric Wheeler wrote: > >> During the recent IO/FS workshop, we spoke briefly about the >> coming change to a 4k sector size for disks on linux. If I >> recall correctly, the general feeling was that the impact was >> not significant since we already do most file system IO in 4k >> page sizes and should be fine as long as we partition drives >> correctly and avoid non-4k aligned partitions. >> > > Sorry about jumping right in, but what about an 'old-style' > partition table that relies on 512 as a unit? > > I think that the normal case would involve new drives which would need to be partitioned in 4k aligned partitions. Shouldn't that work regardless of the unit used in the partition table? ric