From owner-freebsd-performance@FreeBSD.ORG Wed Jun 18 10:48:02 2003 Return-Path: Delivered-To: freebsd-performance@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 5299337B404 for ; Wed, 18 Jun 2003 10:48:02 -0700 (PDT) Received: from out004.verizon.net (out004pub.verizon.net [206.46.170.142]) by mx1.FreeBSD.org (Postfix) with ESMTP id 6705243F3F for ; Wed, 18 Jun 2003 10:48:01 -0700 (PDT) (envelope-from cswiger@mac.com) Received: from mac.com ([141.149.47.46]) by out004.verizon.net (InterMail vM.5.01.05.33 201-253-122-126-133-20030313) with ESMTP id <20030618174800.ESJA246.out004.verizon.net@mac.com>; Wed, 18 Jun 2003 12:48:00 -0500 Message-ID: <3EF0A5D0.7040709@mac.com> Date: Wed, 18 Jun 2003 13:48:00 -0400 From: Chuck Swiger Organization: The Courts of Chaos User-Agent: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.4) Gecko/20030529 X-Accept-Language: en-us, en MIME-Version: 1.0 To: agent dero References: <20030614190033.7F0DE37B407@hub.freebsd.org> <20030615091254.M85497@bluhayz.org> In-Reply-To: <20030615091254.M85497@bluhayz.org> X-Enigmail-Version: 0.76.0.0 X-Enigmail-Supports: pgp-inline, pgp-mime Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit X-Authentication-Info: Submitted using SMTP AUTH at out004.verizon.net from [141.149.47.46] at Wed, 18 Jun 2003 12:47:59 -0500 cc: freebsd-performance@freebsd.org Subject: Re: freebsd-performance Digest, Vol 4, Issue 7 X-BeenThere: freebsd-performance@freebsd.org X-Mailman-Version: 2.1.1 Precedence: list List-Id: Performance/tuning List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 18 Jun 2003 17:48:02 -0000 agent dero wrote: > I have been researching RAID and Software RAID online using FreeBSD's > availible documents, and I am wondering what the performance of using a > simple RAID 1 capable card over a software RAID 1 configuration? Will the > software RAID perform well enough that I could just cut costs of a RAID card? Hardware RAID support can be critical to RAID-5 performance; for RAID-1, the difference between software and hardware probably won't be noticable. [ Yes, this is a generalization that will be false in some circumstances. ] -Chuck