From owner-freebsd-stable@FreeBSD.ORG Wed Feb 21 00:15:25 2007 Return-Path: X-Original-To: freebsd-stable@freebsd.org Delivered-To: freebsd-stable@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [69.147.83.52]) by hub.freebsd.org (Postfix) with ESMTP id 9E8E316D577 for ; Wed, 21 Feb 2007 00:15:25 +0000 (UTC) (envelope-from amesbury@umn.edu) Received: from mta-m2.tc.umn.edu (mta-m2.tc.umn.edu [160.94.23.21]) by mx1.freebsd.org (Postfix) with ESMTP id 3DE2D13C481 for ; Wed, 21 Feb 2007 00:15:25 +0000 (UTC) (envelope-from amesbury@umn.edu) Received: from [160.94.247.212] (paulaner.oitsec.umn.edu [160.94.247.212]) by mta-m2.tc.umn.edu (UMN smtpd) with ESMTP Tue, 20 Feb 2007 18:00:13 -0600 (CST) X-Umn-Remote-Mta: [N] paulaner.oitsec.umn.edu [160.94.247.212] #+LO+TS+AU+HN Message-ID: <45DB8B8D.6080706@umn.edu> Date: Tue, 20 Feb 2007 18:00:13 -0600 From: Alan Amesbury User-Agent: Thunderbird 1.5.0.9 (X11/20061222) MIME-Version: 1.0 To: Ivan Voras X-Priority: 4 (Low) References: <20070220215248.3C22216D23E@hub.freebsd.org> In-Reply-To: <20070220215248.3C22216D23E@hub.freebsd.org> X-Enigmail-Version: 0.94.0.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Cc: freebsd-stable@freebsd.org Subject: Re: getting garbage faster using FreeBSD? X-BeenThere: freebsd-stable@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Production branch of FreeBSD source code List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 21 Feb 2007 00:15:25 -0000 Ivan Voras wrote: > The obvious question - why don't you burn the tapes and hammer the disks? :) Ah, low-tech. I know it well. Still, the last time I did any data destruction, I found a 4 Tesla magnet does wonders. Downsides: 1) Oxford's 90cm bore, helium-cooled magnets aren't that common, perhaps because a 2000V/500A power source is a bit expensive (solution doesn't scale). 2) The hard drive has a tendency to fly out of one's hands while moving it through the lines of force (solution requires some physical coordination). It's primarily for item #1 that I hadn't mentioned this earlier, as most readers of -STABLE users are probably looking for a more scalable solution. -- Alan Amesbury University of Minnesota