From mboxrd@z Thu Jan 1 00:00:00 1970 From: Daniel Patton Subject: Re: Newbie: multiple initiator contention resolution? Date: Fri, 02 Apr 2004 21:00:12 +0100 Sender: linux-scsi-owner@vger.kernel.org Message-ID: <406DC64C.4030405@ecs.soton.ac.uk> References: <406C63F7.3060009@ecs.soton.ac.uk> <1080853086.9534.104.camel@persist.az.mvista.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit Return-path: Received: from mta3.sucs.soton.ac.uk ([152.78.128.142]:36320 "EHLO mta3.sucs.soton.ac.uk") by vger.kernel.org with ESMTP id S264069AbUDBUBH (ORCPT ); Fri, 2 Apr 2004 15:01:07 -0500 In-Reply-To: <1080853086.9534.104.camel@persist.az.mvista.com> List-Id: linux-scsi@vger.kernel.org To: linux-scsi@vger.kernel.org Cc: sdake@mvista.com Steven Dake wrote: > You have to use some form of external locking mechanism, most often. > Most filesystems do not support such a thing. Check out opengfs (use > google) for an example of one that does. > Many thanks, I will look into this. I don't understand why SCSI RESERVE/RELEASE can't be used as the locking mechanism though. Call me stupid, but I'm only a student. As an aside, can you (or anyone) see even the *vaguest* possible use for my project? It basically allows you to construct a "virtual" switching fabric with an arbitrary topology, attach a few fake disks to it, then load an LLD on various hosts and they all see all the fake disks. Dan Patton djp101@ecs.soton.ac.uk