From owner-freebsd-questions@FreeBSD.ORG Tue Aug 5 13:40:07 2003 Return-Path: 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 8E83A37B401 for ; Tue, 5 Aug 2003 13:40:07 -0700 (PDT) Received: from redhat.vipersystems.biz (user198.net263.oh.sprint-hsd.net [208.17.71.198]) by mx1.FreeBSD.org (Postfix) with SMTP id 4EC4643F3F for ; Tue, 5 Aug 2003 13:40:04 -0700 (PDT) (envelope-from jason@vipersystems.biz) Received: (qmail 59795 invoked from network); 5 Aug 2003 20:40:06 -0000 Received: from localhost (HELO vipersystems.biz) (127.0.0.1) by localhost with SMTP; 5 Aug 2003 20:40:06 -0000 Received: from 192.168.1.150 (SquirrelMail authenticated user jason@vipersystems.biz) by www.vipersystems.biz with HTTP; Tue, 5 Aug 2003 16:40:06 -0400 (EDT) Message-ID: <2948.192.168.1.150.1060116006.squirrel@www.vipersystems.biz> Date: Tue, 5 Aug 2003 16:40:06 -0400 (EDT) From: "Jason Lieurance" To: X-Priority: 3 Importance: Normal X-Mailer: SquirrelMail (version 1.2.12[cvs]) MIME-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Content-Transfer-Encoding: 8bit Subject: Hard drive performance question X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.1 Precedence: list List-Id: User questions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 05 Aug 2003 20:40:07 -0000 Hello, I have FreeBSD 4.7 server running a qmail-imap-squirrelmail email server and a apache 1.3.27 web server hosting 6 virtual domains that don't get a lot of traffic. Hardware is: P3 933MHz CPU 512 DDR ram Fujitsu MAN3184MP 18.2 GB U160 10K rpm 8MB buffer 2.9 ms access Hard drive Adaptec 29160LP U160 SCSI controller When I run vmstat, I get: procs memory page disks faults CPU r b w avm fre flt re pi po fr sr da0 md0 in sy cs us sy id 0 14 0 184016 40900 26 0 0 0 31 0 0 0 245 839 28 1 1 98 0 14 0 86940 40896 7 0 0 0 15 0 12 0 242 115 21 0 0 99 0 14 0 81460 40896 6 0 0 0 12 0 10 0 239 98 18 0 0 100 0 14 0 85172 40896 7 0 0 0 15 0 14 0 243 116 21 0 1 99 0 14 0 190092 40896 32 0 0 0 37 0 10 0 250 220 35 0 0 100 0 14 0 190092 40896 7 0 0 0 17 0 15 0 244 114 21 0 0 100 0 14 0 189720 40896 7 0 0 0 15 0 12 0 241 116 21 0 0 100 0 14 0 189720 40896 6 0 0 0 12 0 10 0 239 96 18 0 0 100 0 14 0 86860 40896 7 0 0 0 15 0 12 0 241 117 21 0 0 99 1 14 0 86860 40912 6 0 0 0 13 0 11 0 241 100 18 0 0 100 I've read this is a disk access problem where process are waiting on the disk. As you can see this is a constant but I thought the disk system I have was sufficient. Any thoughts, analysis, or other is appreciated, thanks. -- Jason