From mboxrd@z Thu Jan 1 00:00:00 1970 From: "H. Peter Anvin" Subject: Re: end to end error recovery musings Date: Thu, 01 Mar 2007 09:19:39 -0800 Message-ID: <45E70B2B.9050401@zytor.com> References: <664A4EBB07F29743873A87CF62C26D705D6DDB@NAMAIL4.ad.lsil.com> <20070227190236.58323a40@lxorguk.ukuu.org.uk> <20070227233946.7ad33a50@lxorguk.ukuu.org.uk> <45E587C2.5010209@torque.net> <1172683822.3374.13.camel@mulgrave.il.steeleye.com> <1172685161.3374.18.camel@mulgrave.il.steeleye.com> <45E62C3C.5090906@zytor.com> <1172759123.3624.3.camel@mulgrave.il.steeleye.com> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <1172759123.3624.3.camel@mulgrave.il.steeleye.com> Sender: linux-fsdevel-owner@vger.kernel.org To: James Bottomley Cc: "Martin K. Petersen" , dougg@torque.net, Alan , "Moore, Eric" , ric@emc.com, Theodore Tso , Neil Brown , Linux-ide , linux-scsi , linux-raid@vger.kernel.org, Tejun Heo , Mark Lord , Jens Axboe , "Clark, Nathan" , "Singh, Arvinder" , "De Smet, Jochen" , "Farmer, Matt" , linux-fsdevel@vger.kernel.org, "Mizar, Sunita" List-Id: linux-ide@vger.kernel.org James Bottomley wrote: > On Wed, 2007-02-28 at 17:28 -0800, H. Peter Anvin wrote: >> James Bottomley wrote: >>> On Wed, 2007-02-28 at 12:42 -0500, Martin K. Petersen wrote: >>>> 4104. It's 8 bytes per hardware sector. At least for T10... >>> Er ... that won't look good to the 512 ATA compatibility remapping ... >>> >> Well, in that case you'd only see 8x512 data bytes, no metadata... > > i.e. no support for block guard in the 512 byte sector emulation > mode ... > That makes sense, though... if the raw sector size is 4096 bytes, that metadata would presumably not exist on a per-sector basis. -hpa