From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id ; Thu, 2 May 2002 19:09:21 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id ; Thu, 2 May 2002 19:09:20 -0400 Received: from unthought.net ([212.97.129.24]:37526 "HELO mail.unthought.net") by vger.kernel.org with SMTP id ; Thu, 2 May 2002 19:09:19 -0400 Date: Fri, 3 May 2002 01:09:18 +0200 From: =?iso-8859-1?Q?Jakob_=D8stergaard?= To: Jeff Nguyen Cc: linux-kernel@vger.kernel.org Subject: Re: IDE hotplug support? Message-ID: <20020503010918.A31556@unthought.net> Mail-Followup-To: =?iso-8859-1?Q?Jakob_=D8stergaard?= , Jeff Nguyen , linux-kernel@vger.kernel.org In-Reply-To: <20020502215833.V31556@unthought.net> <20020502231359.W31556@unthought.net> <09fa01c1f227$c8357f00$6502a8c0@jeff> Mime-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Content-Disposition: inline Content-Transfer-Encoding: 8bit User-Agent: Mutt/1.2i Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org On Thu, May 02, 2002 at 03:22:00PM -0700, Jeff Nguyen wrote: > You can get a sustained read speed of 80MB/s on the Adaptec 2000S > Zero Channel RAID with 7 drives (RAID-5). But the sustained write > speed is only around 32MB/s. > > On the other hand, the 3Ware Escalade 7850 can sustain a read speed > of 130MB/s with 8 drives (RAID-5). The write speed is 30MB/s. So for both cards, the solution with simple IDE controllers, all on one PCI bus, would be faster not only on RAID-5, but also RAID-1+0. Or am I missing something ? (I know, the IDE cabling is going to be *hell* for 15 drives if you want to stay within spec, and I would go SCSI or FC before that myself) -- ................................................................ : jakob@unthought.net : And I see the elder races, : :.........................: putrid forms of man : : Jakob Østergaard : See him rise and claim the earth, : : OZ9ABN : his downfall is at hand. : :.........................:............{Konkhra}...............: