From owner-freebsd-questions@FreeBSD.ORG Fri Sep 3 14:55:13 2004 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 9FA8816A4CE for ; Fri, 3 Sep 2004 14:55:13 +0000 (GMT) Received: from internet.potentialtech.com (h-66-167-251-6.phlapafg.covad.net [66.167.251.6]) by mx1.FreeBSD.org (Postfix) with ESMTP id 2EC0443D5F for ; Fri, 3 Sep 2004 14:55:11 +0000 (GMT) (envelope-from wmoran@potentialtech.com) Received: from working.potentialtech.com (pa-plum-cmts1e-68-68-113-64.pittpa.adelphia.net [68.68.113.64]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) by internet.potentialtech.com (Postfix) with ESMTP id 7215069A71; Fri, 3 Sep 2004 10:55:10 -0400 (EDT) Date: Fri, 3 Sep 2004 10:55:09 -0400 From: Bill Moran To: Andy Holyer Message-Id: <20040903105509.3b70cfff.wmoran@potentialtech.com> In-Reply-To: <8F6BD2D2-FD85-11D8-8EBC-000D93511A6A@hhbb.co.uk> References: <8F6BD2D2-FD85-11D8-8EBC-000D93511A6A@hhbb.co.uk> Organization: Potential Technologies X-Mailer: Sylpheed version 0.9.12 (GTK+ 1.2.10; i386-portbld-freebsd4.9) Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit cc: freebsd-questions@freebsd.org Subject: Re: Way OT: How long does your box run for? 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: Fri, 03 Sep 2004 14:55:13 -0000 Andy Holyer wrote: > The other day I was explaining something to my boss (a suit), and I > mentioned that a FreeBSD box would easily run for a year or more. "Oh", > he said, "and then you've got to reboot it?". I explained that > generally some upgrade comes along that reqwuires a reboot, but I > realized that I don't know how long a box would stay up in the maximum. > So, come on, this should be fun, what's the biggest uptime you've ever > had for a BSD box? Aside from various uptime projects like the ones David commented on, it's generally not practical to go for long uptimes, for exactly the reasons you describe. In practice: My desktop generally maxes out at about 30 days uptime. Something comes up about once a month that causes me to reboot it. Sometimes it's as simple as a few days off from work, and I turn the computer off. Most of the servers I manage (which are all intended for 24/7 access) see about 3 months between reboots. That's an average. Some servers are more aggresively updated than others, and are rebooted more often. The fun part (for me) is that this is all _scheduled_ downtime. For the potentialtech.com server (for example) has about 3 hours of unscheduled downtime since Jan 1. And that downtime is the result of a failed UPS at the colo facility. It has 0 unscheduled downtime due to software issues. -- Bill Moran Potential Technologies http://www.potentialtech.com