From mboxrd@z Thu Jan 1 00:00:00 1970 From: Matt Domsch Subject: Re: Proposed enhancements to MD Date: Fri, 16 Jan 2004 08:11:07 -0600 (CST) Sender: linux-kernel-owner@vger.kernel.org Message-ID: References: <20040116140615.A24102@infradead.org> Mime-Version: 1.0 Content-Type: TEXT/PLAIN; charset=ISO-8859-1 Content-Transfer-Encoding: QUOTED-PRINTABLE Return-path: In-Reply-To: <20040116140615.A24102@infradead.org> To: Christoph Hellwig Cc: Lars Marowsky-Bree , Neil Brown , Scott Long , linux-kernel@vger.kernel.org, linux-raid@vger.kernel.org List-Id: linux-raid.ids On Fri, 16 Jan 2004, Christoph Hellwig wrote: > On Fri, Jan 16, 2004 at 02:56:46PM +0100, Lars Marowsky-Bree wrote: > > If it encodes the bus/id/lun, I can forsee bad effects if the devic= e > > enumeration changes because the HBAs get swapped in their slots ;-) I believe it's just supposed to be a hint to the firmware that the driv= e=20 has roamed from one physical slot to another. =20 > A bus/id/lun enumeration is completely bogus.=A0 Think (S)ATA, FC or > iSCSI. >=20 > So is there a pointer to the current version of the spec?=A0 Just rea= ding > these multi-path enumerations start to give me the feeling this spec > is designed rather badly.. www.snia.org in the DDF TWG section, but requires you be a member of SN= IA=20 to see at present. The DDF chairperson is trying to make the draft=20 publicly available, and if/when I see that happen I'll post a link to i= t=20 here. Thanks, Matt --=20 Matt Domsch Sr. Software Engineer, Lead Engineer Dell Linux Solutions www.dell.com/linux Linux on Dell mailing lists @ http://lists.us.dell.com From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S265539AbUAPOLl (ORCPT ); Fri, 16 Jan 2004 09:11:41 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S265546AbUAPOLk (ORCPT ); Fri, 16 Jan 2004 09:11:40 -0500 Received: from smtp4.us.dell.com ([143.166.148.135]:39903 "EHLO smtp4.us.dell.com") by vger.kernel.org with ESMTP id S265539AbUAPOLe (ORCPT ); Fri, 16 Jan 2004 09:11:34 -0500 Date: Fri, 16 Jan 2004 08:11:07 -0600 (CST) From: Matt Domsch X-X-Sender: mdomsch@humbolt.us.dell.com To: Christoph Hellwig cc: Lars Marowsky-Bree , Neil Brown , Scott Long , , Subject: Re: Proposed enhancements to MD In-Reply-To: <20040116140615.A24102@infradead.org> Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=ISO-8859-1 Content-Transfer-Encoding: 8BIT Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org On Fri, 16 Jan 2004, Christoph Hellwig wrote: > On Fri, Jan 16, 2004 at 02:56:46PM +0100, Lars Marowsky-Bree wrote: > > If it encodes the bus/id/lun, I can forsee bad effects if the device > > enumeration changes because the HBAs get swapped in their slots ;-) I believe it's just supposed to be a hint to the firmware that the drive has roamed from one physical slot to another. > A bus/id/lun enumeration is completely bogus.  Think (S)ATA, FC or > iSCSI. > > So is there a pointer to the current version of the spec?  Just reading > these multi-path enumerations start to give me the feeling this spec > is designed rather badly.. www.snia.org in the DDF TWG section, but requires you be a member of SNIA to see at present. The DDF chairperson is trying to make the draft publicly available, and if/when I see that happen I'll post a link to it here. Thanks, Matt -- Matt Domsch Sr. Software Engineer, Lead Engineer Dell Linux Solutions www.dell.com/linux Linux on Dell mailing lists @ http://lists.us.dell.com