From owner-freebsd-questions@FreeBSD.ORG Wed Oct 15 02:00:49 2003 Return-Path: Delivered-To: freebsd-questions@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 3D96716A4B3 for ; Wed, 15 Oct 2003 02:00:49 -0700 (PDT) Received: from rutger.owt.com (rutger.owt.com [204.118.6.16]) by mx1.FreeBSD.org (Postfix) with ESMTP id EBFBA43FE1 for ; Wed, 15 Oct 2003 02:00:47 -0700 (PDT) (envelope-from kstewart@owt.com) Received: from topaz-out (owt-207-41-94-233.owt.com [207.41.94.233]) by rutger.owt.com (8.11.6p2/8.9.3) with ESMTP id h9F90hw06518; Wed, 15 Oct 2003 02:00:43 -0700 From: Kent Stewart To: "Mike Maltese" , Date: Wed, 15 Oct 2003 02:00:42 -0700 User-Agent: KMail/1.5.4 References: <3F8CC8BD.50702@rbcmail.ru> <200310142311.39354.kstewart@owt.com> <003e01c392f8$e34042d0$f4f0a8c0@pcmedx.com> In-Reply-To: <003e01c392f8$e34042d0$f4f0a8c0@pcmedx.com> MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit Content-Disposition: inline Message-Id: <200310150200.42696.kstewart@owt.com> Subject: Re: atacontrol(8) X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.1 Precedence: list List-Id: User questions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 15 Oct 2003 09:00:49 -0000 On Wednesday 15 October 2003 01:46 am, Mike Maltese wrote: > > acd0: DVDROM at ata1-master UDMA66 > > I stand corrected, although I maintain that no optical drive is > capable of that kind of throughput. =) I was kinda wondering if he'd > been duped on the specs of the drive. > Neither are the HDs. They transfer at their rated speed but only have the bus for a few milliseconds at a time. Regardless of the device, if you transfer the data using dma, you are going to pass more information per turn. I figure the rest is advertising hype. Kent -- Kent Stewart Richland, WA http://users.owt.com/kstewart/index.html