Path: utzoo!utgpu!watserv1!watmath!att!tut.cis.ohio-state.edu!cs.utexas.edu!uunet!zephyr.ens.tek.com!tekgen!tekcae!ralphc
From: ralphc@tekcae.CAX.TEK.COM (Ralph Carpenter)
Newsgroups: comp.sys.cdc
Subject: Wanted.. any info on 26" disk drive platter
Keywords: ancient,relic
Message-ID: <6536@tekgen.BV.TEK.COM>
Date: 10 Sep 90 20:09:52 GMT
Sender: news@tekgen.BV.TEK.COM
Lines: 24


An interesting reminder of my youth hangs on the wall of my
cubicle:  a 26" platter from a CDC 6600 disk drive that was
decommissoned about 1973.  I think the unit was a Bryan(t).  As I
remember, the heads were hydraulically driven.  The story was
that one job would periodically show up that put the mini-van
sized unit into resonance and, unless the operator rolled that
job out until some other jobs came along to randomize the head
movement, the whole unit would hop until it moved off the holes
in the raised floor.

Everyone that sees the huge platter asks me how much data it can
(could) hold.  Does anyone out there know the specs of this
platter and the unit it came from?  I would enjoy learning more
about it.

Thanks

Ralph Carpenter
PO Box 500, Mail Sta. 19-075
Tektronix, Inc.
Beaverton, OR
Phone (503) 627-4004
FAX (503) 627-5339