From owner-freebsd-questions@FreeBSD.ORG Fri Feb 17 12:11:51 2006 Return-Path: X-Original-To: freebsd-questions@freebsd.org 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 C5FC616A420 for ; Fri, 17 Feb 2006 12:11:51 +0000 (GMT) (envelope-from tedm@toybox.placo.com) Received: from mail.freebsd-corp-net-guide.com (mail.web-strider.com [65.75.192.90]) by mx1.FreeBSD.org (Postfix) with ESMTP id 8F5F943D62 for ; Fri, 17 Feb 2006 12:11:41 +0000 (GMT) (envelope-from tedm@toybox.placo.com) Received: from tedwin2k (nat-rtr.freebsd-corp-net-guide.com [65.75.197.130]) by mail.freebsd-corp-net-guide.com (8.11.1/8.11.1) with SMTP id k1HCBKu19575; Fri, 17 Feb 2006 04:11:20 -0800 (PST) (envelope-from tedm@toybox.placo.com) From: "Ted Mittelstaedt" To: "Foo Ji-Haw" , "bsd" , "Robert Uzzi" Date: Fri, 17 Feb 2006 04:11:20 -0800 Message-ID: MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit X-Priority: 3 (Normal) X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook IMO, Build 9.0.6604 (9.0.2911.0) X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1506 In-Reply-To: <067101c63216$a7682f10$c801a8c0@nexpc> Importance: Normal Cc: Liste FreeBSD Subject: RE: SATA Raid X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: User questions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 17 Feb 2006 12:11:51 -0000 >-----Original Message----- >From: owner-freebsd-questions@freebsd.org >[mailto:owner-freebsd-questions@freebsd.org]On Behalf Of Foo Ji-Haw >Sent: Wednesday, February 15, 2006 2:00 AM >To: bsd; Robert Uzzi >Cc: Liste FreeBSD >Subject: Re: SATA Raid > > >Do note that cheap SATA raid controllers are in fact 'software' >raid cards; >much of the load is on the cpu rather than the asic. > This does not matter when your just doing mirroring or striping, no parity calculations. It only matters with RAID5 which most of the cheap raid controllers don't do. With the size of disks today and cost, if your looking primariarly for reliability, just mirror 2 large disks. Ted