bru, brutab values and sgi tape devices

[karron at MCIRPS2.MED.NYU.EDU]

I want to install my 9 track tape in the /etc/brutab.

I note that there are no entries for sgi tape devices !

This is silly, since there are a number of wildly different sgi tape
devices.

Specifically, I need the values for the xmt zylogic tape driver running
as a nr device, at all of the appplicable densities (1600 especially).

Is there any application of bstream for bru ?

Is there any quick utilities for counting bytes/blocks (at what blocksize ?)
to determine the capacity of a tape device ? What is the
tape size of a 1600 bpi 9 track tape ? What is the block size of the xmt
tape devices ?

dan.
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