From owner-freebsd-scsi Wed Dec 6 23:39:13 2000 From owner-freebsd-scsi@FreeBSD.ORG Wed Dec 6 23:39:11 2000 Return-Path: Delivered-To: freebsd-scsi@freebsd.org Received: from misery.sdf.com (misery.sdf.com [204.244.213.49]) by hub.freebsd.org (Postfix) with ESMTP id D293E37B400 for ; Wed, 6 Dec 2000 23:39:09 -0800 (PST) Received: from tom (helo=localhost) by misery.sdf.com with local-esmtp (Exim 2.12 #1) id 143uxs-00070K-00 for freebsd-scsi@freebsd.org; Wed, 6 Dec 2000 22:55:36 -0800 Date: Wed, 6 Dec 2000 22:55:35 -0800 (PST) From: Tom Samplonius To: freebsd-scsi@freebsd.org Subject: Multipath SCSI IO? Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-freebsd-scsi@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.org How difficult would adding multipath support to the SCSI be? I'd like to be able to access an external storage system using two busses. I've heard rumours that such a thing is in the works. I also wonder whether there is any kind of very unique serial number in the partition table or disklabel that could be used by such a system for autoconfiguration. For instance, if the disk at bus 0, target 1 and the disk at bus 1, target 2 have the same serial number, they must be the same disk, so use multipath? Or am too much of an optimist? Tom To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-scsi" in the body of the message