From owner-freebsd-chat Mon Sep 8 00:41:02 1997 Return-Path: Received: (from root@localhost) by hub.freebsd.org (8.8.7/8.8.7) id AAA15800 for chat-outgoing; Mon, 8 Sep 1997 00:41:02 -0700 (PDT) Received: from wakky.dyn.ml.org (lee@1Cust72.tnt1.manassas.va.da.uu.net [153.37.113.72]) by hub.freebsd.org (8.8.7/8.8.7) with ESMTP id AAA15794 for ; Mon, 8 Sep 1997 00:40:58 -0700 (PDT) Received: (from lee@localhost) by wakky.dyn.ml.org (8.8.5/8.8.3) id DAA06286; Mon, 8 Sep 1997 03:40:37 -0400 (EDT) Message-ID: <19970908034036.07341@wakky.dyn.ml.org> Date: Mon, 8 Sep 1997 03:40:36 -0400 From: Lee Cremeans To: Greg Lehey Cc: chat@freebsd.org Subject: Re: lousy disk perf. under cpu load (was IDE vs SCSI) Reply-To: hcremean@vt.edu References: <19970908013227.32344@wakky.dyn.ml.org> <199709080546.PAA01604@word.smith.net.au> <19970908164852.40911@lemis.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii X-Mailer: Mutt 0.79e In-Reply-To: <19970908164852.40911@lemis.com>; from Greg Lehey on Mon, Sep 08, 1997 at 04:48:52PM +0930 X-OS: FreeBSD 2.2-RELEASE X-Evil: microsoft.com Sender: owner-freebsd-chat@freebsd.org X-Loop: FreeBSD.org Precedence: bulk On Mon, Sep 08, 1997 at 04:48:52PM +0930, Greg Lehey wrote: > > The linear VC actuator probably predates the use of stepper motors; > > I'd think so. The stepper motors wouldn't have got into hard drives > until about the ST-506. Seagate was founded in 1979, so this puppy came out that year or in 1980. And yes, I kinda figured the ST-506 had something to do with this, seeing that Alan Shugart practically invented[1] the floppy (and that practically all floppy drives use steppers)... [1] Shugart was on the team that invented the 8" floppy at IBM, IIRC... -- Lee C. -- Manassas, VA, USA (WakkyMouse on DALnet #watertower) A! JW223 YWD++^i WK+++r P&B++ SL++^i GDF B&M KK--i MD+++i P++ I++++ Did $++ E5/10/70/3c/73ac Ee34/1/36 H2 PonPippi Ay77 M | hcremean (at) vt.edu FreeBSD/Linux/Unix hacker...Win95 and M$ evil! (go see www.freebsd.org) My home page: http://wakky.dyn.ml.org/~lee | finger me for geek code