From owner-freebsd-hardware@FreeBSD.ORG Fri Feb 27 07:06:07 2004 Return-Path: Delivered-To: freebsd-hardware@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id A9F0E16A4CE for ; Fri, 27 Feb 2004 07:06:07 -0800 (PST) Received: from sarajevo.pacific.net.sg (sarajevo.pacific.net.sg [203.120.90.134]) by mx1.FreeBSD.org (Postfix) with SMTP id 9CC7743D2D for ; Fri, 27 Feb 2004 07:06:06 -0800 (PST) (envelope-from oceanare@pacific.net.sg) Received: (qmail 5116 invoked from network); 27 Feb 2004 15:06:05 -0000 Received: from unknown (HELO maxwell2.pacific.net.sg) (203.120.90.192) by sarajevo with SMTP; 27 Feb 2004 15:06:04 -0000 Received: from pacific.net.sg ([210.24.202.170]) by maxwell2.pacific.net.sg with ESMTP id <20040227150604.MPWR2304.maxwell2.pacific.net.sg@pacific.net.sg>; Fri, 27 Feb 2004 23:06:04 +0800 Message-ID: <403F5CDC.5020906@pacific.net.sg> Date: Fri, 27 Feb 2004 23:06:04 +0800 From: Erich Dollansky Organization: oceanare pte ltd User-Agent: Mozilla/5.0 (Windows; U; Windows NT 5.0; en-US; rv:1.6) Gecko/20040113 X-Accept-Language: en, en-us, de MIME-Version: 1.0 To: Lanny Baron References: <20040225200421.0BC4443D2D@mx1.FreeBSD.org> <15430000.1077893552@durian.pingpong.net> <1077894043.10415.501.camel@panda> In-Reply-To: <1077894043.10415.501.camel@panda> Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit cc: Artem Koutchine cc: Palle Girgensohn cc: freebsd-hardware@freebsd.org Subject: Re: Choosing Serial ATA RAID 5 controller for FBSD 4.9 X-BeenThere: freebsd-hardware@freebsd.org X-Mailman-Version: 2.1.1 Precedence: list List-Id: General discussion of FreeBSD hardware List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 27 Feb 2004 15:06:07 -0000 Hi, Lanny Baron wrote: > For every 1 SCSI disk failure, you will get about 10 ide disk failures. > > The MTBF for SCSI drives is ~ 50% of ide. I think, it is the other way around. The MTBF of a SCSI drive is some 1 200 000 h while an IDE drive comes with 300 000 h or less. Erich