From owner-freebsd-hackers Tue Jul 9 12:14:10 2002 Delivered-To: freebsd-hackers@freebsd.org Received: from mx1.FreeBSD.org (mx1.FreeBSD.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 6A83F37B400 for ; Tue, 9 Jul 2002 12:14:07 -0700 (PDT) Received: from stone.locallink.net (Stone.LocalLink.Net [65.170.77.2]) by mx1.FreeBSD.org (Postfix) with ESMTP id 1347843E09 for ; Tue, 9 Jul 2002 12:14:03 -0700 (PDT) (envelope-from kpitcher@locallink.net) Received: by stone.locallink.net (Postfix, from userid 1001) id 3C112422A1; Tue, 9 Jul 2002 15:14:05 -0400 (EDT) Date: Tue, 9 Jul 2002 15:14:05 -0400 From: Keith Pitcher To: David Gilbert Cc: freebsd-hackers@freebsd.org Subject: Re: [hackers] Multi CDR burn Message-ID: <20020709191404.GA97352@stone.locallink.net> References: <20020708220105.GA32341@stone.locallink.net> <15658.50186.945164.162061@canoe.velocet.net> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <15658.50186.945164.162061@canoe.velocet.net> User-Agent: Mutt/1.3.99i Sender: owner-freebsd-hackers@FreeBSD.ORG Precedence: bulk List-ID: List-Archive: (Web Archive) List-Help: (List Instructions) List-Subscribe: List-Unsubscribe: X-Loop: FreeBSD.ORG On Tue, Jul 09, 2002 at 07:07:54AM -0400, David Gilbert wrote: > Remember: unix is a system whereby you assemble piplelines and scripts > of _simple_ programs to create complex behavior. It's not necessary > to have a multi-cd tool when you can roll your own with your own > behavior. > > Dave. This is a simplistic and inadequate solution. UNIX was intended to be efficient, not to do eight Times the amount of work of any other system. This uses 8 times the memory, 8 times the processor, and 8 times the bus (only 4 times if two channels, but you get the idea). A properly written CD burning tool would use the SCSI commands to send the data only once to all of the devices. This solution requires that you have a machine that is 8 times more powerful than you should actually need. We do not. We have an HP Netserver 5: a P100 with a built in narrow SCSI2 controller. Given the hardware, is there a way to burn 8 CDs at one time, or is there some mirroring code that is well written enough to facilitate it? Thank you, Keith To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-hackers" in the body of the message