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List:       freebsd-hackers
Subject:    Re: Exabyte 8500 in low density (2GB) mode... How?
From:       Wilko Bulte <wilko () yedi ! iaf ! nl>
Date:       1998-09-30 18:48:11
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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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