From owner-freebsd-hackers  Wed Sep 30 13:03:54 1998
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From: Wilko Bulte <wilko@yedi.iaf.nl>
Message-Id: <199809301848.UAA01824@yedi.iaf.nl>
Subject: Re: Exabyte 8500 in low density (2GB) mode... How?
In-Reply-To: <199809300129.UAA04963@nospam.hiwaay.net> from David Kelly at "Sep 29, 98 08:29:38 pm"
To: dkelly@hiwaay.net (David Kelly)
Date: Wed, 30 Sep 1998 20:48:11 +0200 (CEST)
Cc: hackers@FreeBSD.ORG
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As David Kelly wrote...
> Karl Denninger writes:
> > I don't believe an 8500 CAN write 8200 format.
> > 
> > It can READ 8200 format, but not write it.  There are differences in track
> > density and head gap size, and as such I don't believe this is even
> > physically possible.
> 
> The Exabyte 850x family definitely can both read and write the 8200 low
> density format. I have a bunch of TTi-branded Exabytes with alphanumeric
> displays at work. The display is sorta nice to know how much is left on
> the tape. But nicer for quickly identifying low density tapes.
> 
> Another thing I can do with the TTi is override the density setting the
> OS tries to use and force density and compression settings. That's handy
> with FreeBSD as I haven't figured out how to control it from the FreeBSD
> end. As a result all my Exabytes are on Sun and SGI systems. :-(

It can be done using 'mt density'. Don't ask me what value you have
to feed it, it's been 1.5 years ago I had a 8505 in my machine at work.

Wilko
_     ______________________________________________________________________
 |   / o / /  _  Bulte 				  email: wilko@yedi.iaf.nl 
 |/|/ / / /( (_) Arnhem, The Netherlands          WWW  : http://www.tcja.nl
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