From owner-freebsd-questions@FreeBSD.ORG Tue Aug 5 18:33:22 2008 Return-Path: Delivered-To: freebsd-questions@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id BCE921065671 for ; Tue, 5 Aug 2008 18:33:22 +0000 (UTC) (envelope-from dkelly@Grumpy.DynDNS.org) Received: from smtp.knology.net (smtp.knology.net [24.214.63.101]) by mx1.freebsd.org (Postfix) with ESMTP id 5649B8FC19 for ; Tue, 5 Aug 2008 18:33:21 +0000 (UTC) (envelope-from dkelly@Grumpy.DynDNS.org) Received: (qmail 8288 invoked by uid 0); 5 Aug 2008 18:33:20 -0000 Received: from unknown (HELO Grumpy.DynDNS.org) (216.186.148.249) by smtp7.knology.net with SMTP; 5 Aug 2008 18:33:20 -0000 Received: by Grumpy.DynDNS.org (Postfix, from userid 928) id A9AA628429; Tue, 5 Aug 2008 13:33:20 -0500 (CDT) Date: Tue, 5 Aug 2008 13:33:20 -0500 From: David Kelly To: Gary Kline Message-ID: <20080805183320.GE60428@Grumpy.DynDNS.org> References: <20080805181926.GA24000@thought.org> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20080805181926.GA24000@thought.org> User-Agent: Mutt/1.4.2.3i Cc: FreeBSD Mailing List Subject: Re: general questions about 7.0 and computer efficiency...... X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list Reply-To: FreeBSD-Questions@FreeBSD.org List-Id: User questions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 05 Aug 2008 18:33:22 -0000 On Tue, Aug 05, 2008 at 11:19:31AM -0700, Gary Kline wrote: > > I kep track on the load on my main server, and it is rarely above > 0.20. If the load is a poor metric of power use, what is > better? (My new `Watt-o-Meter' is checking the power right now, > but I would like to know what drink the most juice: disk,RAM, > processor, OpSys? Number of hit/hours? I want my upgrades to > be as cost-effective as possible, in other words. There isn't a good generic answer to your question. "It all depends" on exactly what hardware you have. A good rule of thumb is 10W for each disk drive, but some were much higher. Pull the data sheets for your drives. A Kill-A-Watt on the power cord is the best way to answer the total question. My old ancient Dell Optiplex running 5.5 draws about 60 watts including the APS 350CS UPS. Am not about to unplug it without good reason: dkelly@AndrAIa {1004} uptime 1:30PM up 670 days, 21:08, 2 users, load averages: 0.00, 0.00, 0.00 I found a 10G drive in the trash yesterday. Would one day be a nice upgrade for the 4G drive in the above. -- David Kelly N4HHE, dkelly@HiWAAY.net ======================================================================== Whom computers would destroy, they must first drive mad.