From owner-freebsd-fs Fri Mar 31 12: 2: 2 2000 Delivered-To: freebsd-fs@freebsd.org Received: from lanturn.express.ru (lanturn.kmost.express.ru [212.24.37.109]) by hub.freebsd.org (Postfix) with ESMTP id 2801437BAB4 for ; Fri, 31 Mar 2000 12:01:57 -0800 (PST) (envelope-from vova@express.ru) Received: from vova (helo=localhost) by lanturn.express.ru with local-esmtp (Exim 3.11 #1) id 12b7bs-0003sw-00; Sat, 01 Apr 2000 00:01:36 +0400 Date: Sat, 1 Apr 2000 00:01:36 +0400 (MSD) From: vova@express.ru X-Sender: vova@lanturn.kmost.express.ru To: Bernd Walter Cc: freebsd-fs@FreeBSD.ORG Subject: Re: SCSI bus In-Reply-To: <20000331215756.A19890@cicely8.cicely.de> Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-freebsd-fs@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.org On Fri, 31 Mar 2000, Bernd Walter wrote: > > I have question about two SCSI controllers on one SCSI bus, > > > > I want to run following configuration: one FreeBSD with SCSI controler, > > with mounted disks in read/write mode, and another FreeBSD with SCSI > > controller on the same bus with mounted disks in read-only mode. > > > > So can two controllers correctly handle SCSI bus with FreeBSD drivers ? > > (I mean aic78* controllers) > > I don't expect this to work because the readonly side can't know when the > incore informations outdates. Yes, it can be a problem, but may be this may be solved by disabling any cache on read-only side (or setting expire time in one sec) ? > The two controller side shouldn't be the problem - but I can't say for shure > as I don't know the CAM system much and havn't tried. > -- > B.Walter COSMO-Project http://www.cosmo-project.de > ticso@cicely.de Usergroup info@cosmo-project.de -- TSB Russian Express, Moscow Vladimir B. Grebenschikov, vova@express.ru To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-fs" in the body of the message