From owner-freebsd-questions@FreeBSD.ORG Wed Dec 28 01:22:48 2005 Return-Path: X-Original-To: freebsd-questions@freebsd.org 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 5148116A41F for ; Wed, 28 Dec 2005 01:22:48 +0000 (GMT) (envelope-from scrappy@hub.org) Received: from hub.org (hub.org [200.46.204.220]) by mx1.FreeBSD.org (Postfix) with ESMTP id 922CA43D46 for ; Wed, 28 Dec 2005 01:22:39 +0000 (GMT) (envelope-from scrappy@hub.org) Received: from localhost (unknown [200.46.204.144]) by hub.org (Postfix) with ESMTP id 1FDA062C887 for ; Tue, 27 Dec 2005 21:22:39 -0400 (AST) Received: from hub.org ([200.46.204.220]) by localhost (av.hub.org [200.46.204.144]) (amavisd-new, port 10024) with ESMTP id 32138-06 for ; Tue, 27 Dec 2005 21:22:38 -0400 (AST) Received: from ganymede.hub.org (blk-222-82-85.eastlink.ca [24.222.82.85]) by hub.org (Postfix) with ESMTP id B86E962C848 for ; Tue, 27 Dec 2005 21:22:38 -0400 (AST) Received: by ganymede.hub.org (Postfix, from userid 1000) id 83AE43ADC1; Tue, 27 Dec 2005 21:22:42 -0400 (AST) Received: from localhost (localhost [127.0.0.1]) by ganymede.hub.org (Postfix) with ESMTP id 80FEB33C2B for ; Tue, 27 Dec 2005 21:22:42 -0400 (AST) Date: Tue, 27 Dec 2005 21:22:42 -0400 (AST) From: "Marc G. Fournier" To: freebsd-questions@freebsd.org Message-ID: <20051227211433.J1087@ganymede.hub.org> MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII; format=flowed X-Virus-Scanned: by amavisd-new at hub.org Subject: "Load Balancing": How Busy are the servers? 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: Wed, 28 Dec 2005 01:22:48 -0000 Two part question here ... first leads into the second, and the second might answer the first ... 1. What variables on a server should be monitored to determine how busy a server is? For instance, I've always been taugth that 'loadavg' is not an indication of how busy a server is, since a high loadavg on a single CPU server might be an overloaded server, but moderately loaded on a dual CPU server ... disk i/o, cpu usage, ethernet throughput ... what else? 2. Are there any tools that I can run to give me a point in time "summary" of how busy a server is based on these several factors? Basically, I'd like to keep track of multiple servers and be able to say "this server is running >75% of capacity, time to upgrade or move things off of it" ... if its possible ... ? thanks ... ---- Marc G. Fournier Hub.Org Networking Services (http://www.hub.org) Email: scrappy@hub.org Yahoo!: yscrappy ICQ: 7615664