From owner-freebsd-questions@FreeBSD.ORG Mon Mar 31 05:22:57 2008 Return-Path: Delivered-To: freebsd-questions@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id F22F81065673 for ; Mon, 31 Mar 2008 05:22:57 +0000 (UTC) (envelope-from rock_on_the_web@comcen.com.au) Received: from angel.comcen.com.au (angel.comcen.com.au [203.23.236.69]) by mx1.freebsd.org (Postfix) with ESMTP id 935EB8FC17 for ; Mon, 31 Mar 2008 05:22:57 +0000 (UTC) (envelope-from rock_on_the_web@comcen.com.au) Received: from [192.168.0.200] (202-172-126-254.cpe.qld-1.comcen.com.au [202.172.126.254]) by angel.comcen.com.au (8.13.4/8.12.9) with ESMTP id m2V6LnRZ068317 for ; Mon, 31 Mar 2008 16:21:51 +1000 (EST) From: Da Rock To: freebsd-questions@freebsd.org In-Reply-To: <20080331033417.GH28690@dan.emsphone.com> References: <20080329131542.H80112@wojtek.tensor.gdynia.pl> <20080331033417.GH28690@dan.emsphone.com> Content-Type: text/plain Date: Mon, 31 Mar 2008 15:22:37 +1000 Message-Id: <1206940957.30698.11.camel@laptop2.herveybayaustralia.com.au> Mime-Version: 1.0 X-Mailer: Evolution 2.12.3 (2.12.3-3.fc8) Content-Transfer-Encoding: 7bit X-comcen-MailScanner-Information: Please contact the ISP for more information X-comcen-MailScanner: Found to be clean X-comcen-MailScanner-SpamCheck: not spam, SpamAssassin (not cached, score=-16.427, required 4, autolearn=not spam, ALL_TRUSTED -1.80, AWL 0.37, BAYES_00 -15.00) X-comcen-MailScanner-From: rock_on_the_web@comcen.com.au Subject: Re: SCSI network X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: User questions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 31 Mar 2008 05:22:58 -0000 On Sun, 2008-03-30 at 22:34 -0500, Dan Nelson wrote: > In the last episode (Mar 29), Wojciech Puchar said: > > i have few Ultra160 SCSI controllers and two Ultra40, cables and few > > machines that needs fast interconnect. i could use one gigabit card on each > > machine+switch, but i already have it! > > > > can i make external SCSI bus through all machines and use it to transmit IP > > packets? > > > > they are all adaptec (ahc driver) controllers - manual says it can be > > target as well as initiator > > I've never seen a SCSI IP implementation, but I guess it's > theoretically possible. Since SCSI uses a shared bus, though, the best > you could get would be a half-duplex network. Gigabit NICs and a cheap > unmanaged switch will work much better :) > I'd agree with that 100%- do the bandwidth math (not to mention the ease of setup): gigabit each way compared to a max of 320mb (I could be wrong on the exact figures, but the gigabit is still faster). Setup a small private network between the machines in question and everything would be happy.