From owner-freebsd-questions@FreeBSD.ORG Sun Feb 6 15:09:37 2005 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 C66DB16A4CE for ; Sun, 6 Feb 2005 15:09:37 +0000 (GMT) Received: from ptb-relay01.plus.net (ptb-relay01.plus.net [212.159.14.212]) by mx1.FreeBSD.org (Postfix) with ESMTP id 797CD43D41 for ; Sun, 6 Feb 2005 15:09:37 +0000 (GMT) (envelope-from ian@codepad.net) Received: from [80.229.159.44] (helo=hercules.codepad.net) by ptb-relay01.plus.net with esmtp (Exim) id 1Cxo2a-000Cjl-DX for freebsd-questions@freebsd.org; Sun, 06 Feb 2005 15:09:36 +0000 From: Xian To: freebsd-questions@freebsd.org Date: Sun, 6 Feb 2005 15:09:35 +0000 User-Agent: KMail/1.7 References: In-Reply-To: MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit Content-Disposition: inline Message-Id: <200502061509.35090.ian@codepad.net> Subject: Re: Leaving a Computer Running ? 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: Sun, 06 Feb 2005 15:09:37 -0000 On Sunday 06 February 2005 14:01, Ted Mittelstaedt wrote: > > TM> For PC's left on for long periods, they have a different problem > > TM> because disk drives that spin at full speed continuiously (as > > TM> server drives do, servers have power saving disabled on their > > TM> drives of course for obvious reasons) the disk will eventually > > TM> overheat in just about all the garden-variety case designs. > > TM> (you can fix this yourself of course, by adding more fans to > > TM> the cases) Once the drive overheats the lubrication migrates > > TM> out of the bearings and if the drive is turned off for more > > TM> than 6-8 hours, it cools down enough to the point that the drive > > TM> will never spin up again. > > > > Interesting! Have you actually had this happen? > > Yes, about 6 times over the last 10 years. All of it was crap small > minitowers or otherwise airflow-restricted cases that let the drive > heat up too hot to touch. > > Sometimes hitting it with a hammer - hard - right when you apply power > will get them going again. I guess old SCSI drives are built better than modern IDE. I have an archaic thing thing running a small web server and it is built a damn site better than most other computers I've seen. It has and old SCSI drive that's built like a brick. -- /Xian "The only real valuable thing is intuition." Albert Einstein