Ok Marc,

From your description you have a TMSCP (Tape Mass Storage Control
Protocol) tape contoller from Dilog that talks SCSI.

MSCP (Mass Storage Control Protocol) disk controller from Dilog that
talks to ESDI disks (probably a DQ696-20)

RQDX3 controller (also MSCP) talking to a floppy drive.

From that information the "ra82" is definitely a fake label, the disks
are NOT ra82's. 

If you board is set up for it, you can type 'B DUA9:' at the chevron
prompt and get into the Dilog's on board formatter program. That will
show you what the geometry of your disks actually is. 

As you can tell, the 4000/200 isn't yet actually supported by NetBSD,
instead it is still being worked on (at least by Michael). Given the
MSCP controller you only need a valid boot block. If you were trying to
use the on board DSSI controller that would be more of a challenge ;-)

It is a nice VAX though and a good machine to run VMS on as well.

--Chuck