From owner-cvs-src@FreeBSD.ORG Thu Feb 26 01:50:11 2004 Return-Path: Delivered-To: cvs-src@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id BF7F816A4CE; Thu, 26 Feb 2004 01:50:11 -0800 (PST) Received: from smtp-out5.xs4all.nl (smtp-out5.xs4all.nl [194.109.24.6]) by mx1.FreeBSD.org (Postfix) with ESMTP id 1ADC943D2D; Thu, 26 Feb 2004 01:50:11 -0800 (PST) (envelope-from wkb@freebie.xs4all.nl) Received: from freebie.xs4all.nl (freebie.xs4all.nl [213.84.32.253]) by smtp-out5.xs4all.nl (8.12.10/8.12.10) with ESMTP id i1Q9o5n1019079; Thu, 26 Feb 2004 10:50:05 +0100 (CET) Received: from freebie.xs4all.nl (localhost [127.0.0.1]) by freebie.xs4all.nl (8.12.10/8.12.9) with ESMTP id i1Q9o16R023263; Thu, 26 Feb 2004 10:50:01 +0100 (CET) (envelope-from wkb@freebie.xs4all.nl) Received: (from wkb@localhost) by freebie.xs4all.nl (8.12.10/8.12.9/Submit) id i1Q9o1le023262; Thu, 26 Feb 2004 10:50:01 +0100 (CET) (envelope-from wkb) Date: Thu, 26 Feb 2004 10:50:01 +0100 From: Wilko Bulte To: Kevin Oberman Message-ID: <20040226095001.GA23188@freebie.xs4all.nl> References: <20040225192838.GA19381@freebie.xs4all.nl> <20040225232804.AECD55D07@ptavv.es.net> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20040225232804.AECD55D07@ptavv.es.net> User-Agent: Mutt/1.4.1i X-OS: FreeBSD 4.9-STABLE X-PGP: finger wilko@freebsd.org cc: cvs-src@FreeBSD.ORG cc: Poul-Henning Kamp cc: src-committers@FreeBSD.ORG cc: cvs-all@FreeBSD.ORG Subject: Re: cvs commit: src/usr.sbin/fdcontrol fdcontrol.8 X-BeenThere: cvs-src@freebsd.org X-Mailman-Version: 2.1.1 Precedence: list List-Id: CVS commit messages for the src tree List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 26 Feb 2004 09:50:11 -0000 On Wed, Feb 25, 2004 at 03:28:04PM -0800, Kevin Oberman wrote: > > Date: Wed, 25 Feb 2004 20:28:38 +0100 > > From: Wilko Bulte > > Sender: owner-cvs-all@freebsd.org > > > > On Wed, Feb 25, 2004 at 07:34:26PM +0100, Poul-Henning Kamp wrote: > > > In message <20040225181946.GA18703@freebie.xs4all.nl>, Wilko Bulte writes: > > > > > > >> PS: If anybody has a manual for the Y-E data YD174 8" drive I'd > > > >> love to get a scan or copy. > > > > > > > >Too modern.. 8" 128KB (IIRC) DEC RX01 are the way forward :-P > > > > > > Well, the objective is to read all sorts of formats, not to demostrate > > > the second law of thermodynamics. > > > > But it sure could rotate disks full of sand using its 115V AC motor. :) > > > > It needed to, as the PDP that used it was the control CPU for a > > concrete mixing factory. I just vacumed out all of the sand and cement > > dust, stuck new media in and it ran. Now *that* is NonStop hardware > > (pun intended). > > Time to put on my old fart hat on. > > If you want an old portable media system that is REALLY "NonStop" (and > makes an RX01 look really fast), take a look at DECtape (nee LINCtape) > developed by MIT's Lincoln Lab. I spent a lot of time doing nightly > re-links of our main mapping tool for an atmospheric flow analysis > project on a GT-42 running RT-11 on DECtape. Started the build at about > 17:00 and it usually finished up at about 08:00 the following > morning. (And, if you thought Windows 98 was slow to boot...) > > The tape could be spun into a trash can, stomped down with a boot, > covered with dirt, re-wound onto the reels, and be read without > error. It was random access and all data was recorded redundantly with Ah ja.. in case of need you could even run the tape reels by hand, say if a reel motor broke. Overengineered in the xtreme. A friend of mine still has some running in his little museum. -- Wilko Bulte wilko@FreeBSD.org