WangDAT on a uVAX2/3 -- Help!

[Steve Dempsey]

We have a WangDAT 1300 scsi drive to connect to a uVAX3200 (I'm using an
old VaxStationII to test) running Ultrix3.1.  We were sold a Sigma RQD11
scsi controller (emulates KDA50) to run the tape; it looks like a TK50
to Ultrix.  The system recognizes the conroller and tape at boot time;
I can do `mt -f /dev/rmt0h status' and it looks OK.  Writing tapes
produces errors almost immediately, whether using dd, dump, tar, or
whatever.  Example:

   # dd if=/vmunix of=/dev/nrmt0h
   write: error 0
   0+3 records in
   0+1 records out

Then the system hangs and must be manually restarted.  BTW, the controller
works fine with several different scsi disks and the WangDAT works well
on a DS5000/Ultrix4.0.  I don't know if we just have the controller/drive
configured wrong, or if these things just don't like to talk to each other.

The (unnamed) vendor is dragging their heels in providing support to get
this thing running; it's been two weeks since delivery and we've made little
progress.  Anyone have this configuration working?  Any clues appreciated.


        Steve Dempsey,  Center for Computer Assisted Engineering
  Colorado State University, Fort Collins, CO  80523    +1 303 491 0630
INET: steved at longs.LANCE.ColoState.Edu, dempsey at handel.CS.ColoState.Edu
UUCP: boulder!ccncsu!longs.LANCE.ColoState.Edu!steved, ...!ncar!handel!dempsey