From owner-freebsd-isp@FreeBSD.ORG Thu Aug 26 19:10:48 2004 Return-Path: Delivered-To: freebsd-isp@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 1705116A4CE for ; Thu, 26 Aug 2004 19:10:48 +0000 (GMT) Received: from out010.verizon.net (out010pub.verizon.net [206.46.170.133]) by mx1.FreeBSD.org (Postfix) with ESMTP id A62CA43D2F for ; Thu, 26 Aug 2004 19:10:47 +0000 (GMT) (envelope-from cswiger@mac.com) Received: from [192.168.1.3] ([68.160.193.218]) by out010.verizon.net (InterMail vM.5.01.06.06 201-253-122-130-106-20030910) with ESMTP id <20040826191046.STXR14383.out010.verizon.net@[192.168.1.3]>; Thu, 26 Aug 2004 14:10:46 -0500 Message-ID: <412E35B2.7080003@mac.com> Date: Thu, 26 Aug 2004 15:10:42 -0400 From: Chuck Swiger Organization: The Courts of Chaos User-Agent: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.7.2) Gecko/20040803 X-Accept-Language: en-us, en MIME-Version: 1.0 To: "Mitch (bitblock)" References: In-Reply-To: Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit X-Authentication-Info: Submitted using SMTP AUTH at out010.verizon.net from [68.160.193.218] at Thu, 26 Aug 2004 14:10:46 -0500 cc: freebsd-isp@freebsd.org Subject: Re: Performance RAID setup... X-BeenThere: freebsd-isp@freebsd.org X-Mailman-Version: 2.1.1 Precedence: list List-Id: Internet Services Providers List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 26 Aug 2004 19:10:48 -0000 Mitch (bitblock) wrote: [ ... ] > One floating consideration is the hard drive configuration and the relative > performance. > > I could go with 6 73GB 15000 RPM drives in two RAID 5 sets, or I could go > with 6 146GB 10000RPM drives in RAID mirrors. > > The goal is to provide a NFS / SAMBA server for 4 - 20 application servers. > > Anyone have any value for dollar comments? Unless your volumes are read-only, or close to it, RAID-10 (or "-1,0") will give you significantly better write performance than RAID-5. You might also give small SAN devices a thought; in particular, the Xserve RAID box has a very good price/performance point. I don't have experience with the SRCU42L SCSI controller, so you might want to do a search about it and FreeBSD, and/or ask your vendor. -- -Chuck