From owner-freebsd-stable@FreeBSD.ORG Tue Feb 6 12:27:36 2007 Return-Path: X-Original-To: freebsd-stable@freebsd.org Delivered-To: freebsd-stable@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [69.147.83.52]) by hub.freebsd.org (Postfix) with ESMTP id 2990116A400 for ; Tue, 6 Feb 2007 12:27:36 +0000 (UTC) (envelope-from sean@cyberwang.net) Received: from spunkymail-a9.g.dreamhost.com (sd-green-bigip-81.dreamhost.com [208.97.132.81]) by mx1.freebsd.org (Postfix) with ESMTP id 1598213C478 for ; Tue, 6 Feb 2007 12:27:34 +0000 (UTC) (envelope-from sean@cyberwang.net) Received: from [10.0.0.30] (71-14-6-202.static.gwnt.ga.charter.com [71.14.6.202]) by spunkymail-a9.g.dreamhost.com (Postfix) with ESMTP id E890920BDF; Tue, 6 Feb 2007 04:27:32 -0800 (PST) Message-ID: <45C8742A.8000605@cyberwang.net> Date: Tue, 06 Feb 2007 07:27:22 -0500 From: Sean Bryant User-Agent: Thunderbird 1.5.0.9 (Windows/20061207) MIME-Version: 1.0 To: Antony Mawer References: <45C52C3E.8040204@elgia.com> <20070205101806.b45f4118.dom@helenmarks.co.uk> <45C7EC5F.2030108@cyberwang.net> <45C81A5B.1010608@mawer.org> In-Reply-To: <45C81A5B.1010608@mawer.org> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit Cc: freebsd-stable@freebsd.org, Dominic Marks Subject: Re: dd as an imaging solution. X-BeenThere: freebsd-stable@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Production branch of FreeBSD source code List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 06 Feb 2007 12:27:36 -0000 Antony Mawer wrote: > On 6/02/2007 1:47 PM, Sean Bryant wrote: >> Dominic Marks wrote: >>> Check out G4U (NetBSD based) >> >> The only problem I can see here is that multiple parallel reads will >> have serious performance impacts, thus greatly increasing the cloning >> of the disk. >> >> The solution with dd, tee and netcat would just daisy chain the copy >> across the network which would be way faster. > > Now all you need is G4U to operate in a multicast manner like Symantec > Ghost Corporate Edition, and your transfer speed wouldn't reduce with > each additional client (eg. 100mbps for 1 client, 50mbps each for 2 > clients, 33.3mbps each for 3 clients, ...) > > --Antony Exactly. That's what I was really going for. Except Freesbie 2.0 sorta doesn't let me write to the character device over the network .