On Sep 1, 2005, at 10:26 AM, Rushforth, Tim wrote:

Thanks Bill.  Sounds like the documentation is wrong.

The doc seems correct to me. A devclass is associated with a single
library definition, and drives are defined to that library. The
devclass has a single Format value specification, and can only be
specific to a drive model if all drives are of that model. If they
are of mixed, compatible generations of the same technology, then the
Format value has to be more general (DRIVE). As Bill illustrated, if
you want model-specific Format values, then you need separate
devclass definitions.

Observe the note in the Reference manual:
"Note: The server supports the mixing of LTO Ultrium Generation 1
drives and media with LTO Ultrium Generation 2 drives and media
because the LTO Ultrium Generation 2 drives can read and write to
Generation 1 media."

   Richard Sims