From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755656AbaAVUr0 (ORCPT ); Wed, 22 Jan 2014 15:47:26 -0500 Received: from aserp1040.oracle.com ([141.146.126.69]:16798 "EHLO aserp1040.oracle.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755334AbaAVUrY (ORCPT ); Wed, 22 Jan 2014 15:47:24 -0500 To: Ric Wheeler Cc: Mel Gorman , linux-scsi@vger.kernel.org, linux-mm@kvack.org, linux-kernel@vger.kernel.org, linux-ide@vger.kernel.org, linux-fsdevel@vger.kernel.org, Andrew Morton , lsf-pc@lists.linux-foundation.org Subject: Re: [Lsf-pc] [LSF/MM TOPIC] really large storage sectors - going beyond 4096 bytes From: "Martin K. Petersen" Organization: Oracle References: <20131220093022.GV11295@suse.de> <52DF353D.6050300@redhat.com> <20140122093435.GS4963@suse.de> <52DFD168.8080001@redhat.com> <20140122143452.GW4963@suse.de> <52DFDCA6.1050204@redhat.com> Date: Wed, 22 Jan 2014 15:47:12 -0500 In-Reply-To: <52DFDCA6.1050204@redhat.com> (Ric Wheeler's message of "Wed, 22 Jan 2014 09:58:46 -0500") Message-ID: User-Agent: Gnus/5.130005 (Ma Gnus v0.5) Emacs/24.2 (gnu/linux) MIME-Version: 1.0 Content-Type: text/plain X-Source-IP: ucsinet22.oracle.com [156.151.31.94] Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org >>>>> "Ric" == Ric Wheeler writes: Ric> I will have to see if I can get a storage vendor to make a public Ric> statement, but there are vendors hoping to see this land in Linux Ric> in the next few years. I assume that anyone with a shipping device Ric> will have to at least emulate the 4KB sector size for years to Ric> come, but that there might be a significant performance win for Ric> platforms that can do a larger block. I am aware of two companies that already created devices with 8KB logical blocks and expected Linux to work. I had to do some explaining. I agree with Ric that this is something we'll need to address sooner rather than later. -- Martin K. Petersen Oracle Linux Engineering