Path: utzoo!utgpu!watmath!clyde!att!pacbell!ames!mailrus!cornell!uw-beaver!rice!sun-spots-request
From: loki@physicsa.mcgill.ca (Loki Jorgenson rm 421)
Newsgroups: comp.sys.sun
Subject: 1/2" tapedrive hardware problem
Message-ID: <8901021742.AA09731@frodo.physicsa.mcgill.ca>
Date: 11 Jan 89 10:07:02 GMT
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Original-Date: Mon, 2 Jan 89 12:42:56 EST
X-Sun-Spots-Digest: Volume 7, Issue 95, message 2 of 21

Now don't shy away because the word hardware is part of the subject title.
I have a simple problem which I'm *sure* someone has solved before and can
advise me on.

We have a SUN supported CDC 92181 series 1/2" tapedrive.  It has a
'push-in/pop-out' reel hub-lock.  If you know the machine, I trust you
know what I'm talking about.  With increasing frequency (almost once for
every full reel of tape now), the hub-lock pops out during back-ups,
ruining the dump, forcing one to start over...... only to have it pop
again.  The result ...... very few level 0 dumps after many tries.  

Is there a simple (or ridiculously complex) cleaning or adjustment
procedure to correct this?

Thanks in advance,

Loki Jorgenson			node:  loki@physicsa.mcgill.ca
Physics, McGill University	fax:   (514) 398-3733
Montreal Quebec CANADA		phone: (514) 398-6531