You will probably need to modify the teacopen routine so that it recognizes your
tape drive.  The SCSI ID of the drive is encoded in the minor device number.
If your tape is not ID 1, then you will need to modify teac.install script
near the end where it does mknod.  The rewind device has minor number = SCSI ID.
The no rewind device has minor number = SCSI ID + 8.

There is a patch you can make to unix to make using the drive more efficient.
To apply this patch:

	cd /etc/config.d
	cp newunix newunix.orig
	adb -w newunix
	physiosize?w 8
	$q

To install the driver, type 'make install'.  Then 'newconfig -v teac'.
Then reboot.

I've made dumps this way:

	dump.bsd 0ufsb /dev/teac 150m 128k /dev/rdsk/cXd0s0

where 'X' is the drive's SCSI ID.  The '150m' is the tape capacity and the '128k'
is the block size.  dump.bsd seems to miscalculate the amount of the tape that
will be filled by a factor of 10 or more.  I don't know why, but beware if you
try to dump a filesystem about the size of a tape.  This may not be true if
you specify the tape size another way.

Tar can also be used:

	tar cfb /dev/teac 128k ...
