🚀 go-pugleaf

I have a MicroVax II, running VMS 5.3, to which I would like to add an RX-33 diskette
drive.  I have an RQDX-3 controller to which two RD-54s are currently
attached.  These drives are dua0 and dua1.  The installation
instructions that came with the RX-33 describe how to configure the
jumpers on the drive so that it will be drive 0 or 1, depending on
whether it is the first or second diskette drive in the system.  When
I install the drive as drive 0 and reboot the system, the Sho Device
command gives no indication that the diskette has been installed.  I
do notice that its access light comes on every time my system hard
disk (dua0) is accessed during the boot process.  The logical $floppy1
is not defined, and I cannot mount (or do anything else) to dua2.  I
also tried configuring the diskette as drive 2.  Thereafter, the Sho
Device indicates the presence of dua0, dua1 and dua2.  However, the
system disk is not properly mounted and cannot be accessed as dua0.
Setting the default to $disk1 does access the system disk.  Logical
$floppy1 is defined, but seems associated now with dua0.  For fear of
making catastrophic changes, I did not try to access dua2.
    I called DEC customer support and was told that a jumper on the
RQDX3 needs to be changed, but he did not tell me which one.  The
RQDX3 manual does not give the relevant information either.  DEC field
service will drop in and help for a mere $235 - almost the cost of the
drive.  Does anyone out there have a similar system or otherwise have
knowledge that would help me get things working.  Either insight into
the proper jumper settings or knowledge of some software glitch 
in the way logicals are defined would be helpful.  Please respond to
blf2v@virginia.edu.  Thanks for you help.

Barry Farmer, 
University of Virginia, 
Department of Materials Science