From owner-freebsd-questions@FreeBSD.ORG Fri Jan 26 01:48:07 2007 Return-Path: X-Original-To: freebsd-questions@freebsd.org Delivered-To: freebsd-questions@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [69.147.83.52]) by hub.freebsd.org (Postfix) with ESMTP id 63DDB16A403 for ; Fri, 26 Jan 2007 01:48:07 +0000 (UTC) (envelope-from milo@cyberlifelabs.com) Received: from smtp.cyberlifelabs.com (197-39.84.64.master-link.com [64.84.39.197]) by mx1.freebsd.org (Postfix) with ESMTP id 36B2E13C455 for ; Fri, 26 Jan 2007 01:48:07 +0000 (UTC) (envelope-from milo@cyberlifelabs.com) Received: from [192.168.1.101] ([71.146.45.11]) (AUTH: LOGIN milo@cyberlifelabs.com) by mail.geo.cyberlifelabs.com with esmtp; Thu, 25 Jan 2007 17:48:03 -0800 Mime-Version: 1.0 (Apple Message framework v752.2) In-Reply-To: References: <25E0702D-C3A3-4B6B-BC56-D1BC5C1347F5@cyberlifelabs.com> Message-Id: <166EDE70-785D-4C33-9852-F84601CCB4A0@cyberlifelabs.com> From: Milo Hyson Date: Thu, 25 Jan 2007 17:48:02 -0800 To: freebsd-questions@freebsd.org X-Mailer: Apple Mail (2.752.2) Content-Type: text/plain; charset=US-ASCII; delsp=yes; format=flowed Content-Transfer-Encoding: 7bit X-Content-Filtered-By: Mailman/MimeDel 2.1.5 Subject: Re: [SOLVED] RAID Performance Questions 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, 26 Jan 2007 01:48:07 -0000 A quick call to 3ware and they told me to increase vfs.read_max from 8 to 256. That helped. I'm now seeing 4x performance on a four-drive array vs a single drive. Additionally, Ivan was right about the database being too small. iostat showed no disk activity after the initial run, as everything was cached in memory. -- Milo Hyson CyberLife Labs