  Third-party UNIBUS widget configuration? 
 The Question is:
 
Hello,
 
I'm running VMS 4.4 on a VAX-11/750 (soon to be VMS 5.5-2).  There is an
RA81 disk connected via a UDA50 controller on the UNIBUS.  I'd like to
attach an Emulex SD893 2.2Gbyte drive to the system.  The SD series is
UDA50-compatible and should appear as DU
A1, but SYSGEN AUTOCONFIGURE doesn't recognize it.  So the question is:  How
do I install non-standard DU devices?  Can you provide the steps or point me
to documentation that outlines the correct procedure?
 
Thanks.
 
 
 The Answer is:
 
  Assuming this is not simply a case of an incorrect device CSR -- use
  SYSGEN CONFIGURE to determine the correct CSR for the widget -- then
  please contact the vendor or another user with this widget.   If the
  SYSGEN autoconfiguration support does not recognize the "non-standard
  DU device" and the device is at the correct CSR, then this device is
  truely non-standard, and you will need to determine from the vendor
  documentation, the vendor, or from another user familiar with this
  particular UNIBUS widget, exactly what SYSGEN sequence is required.
 
