[comp.sys.sun] DEC RA81 disk drive on a Sun 4/280

dan@rna.nyu.edu (Dan Ts'o) (04/25/89)

>Does anyone know if it is possible to use a DEC RA81 with a Sun 4/280?  We
>are getting rid of our VAX, but it would be nice to keep the disk if
>possible.  Thanks.
>
>I seriously doubt it, unless someone has built a UDA-50 controller for
>a bus other than the Unibus.  --wnl

Well... it is possible, but I wouldn't recommend it.

There exist Q-bus to VME-bus converters (maybe even Unibus to VME-bus, as
well). Get a KDA-50 (? Q-bus to DSA controller) and put it on a Q-bus
backplane. Get the Q-bus to VME-bus converter and attach it to the Sun.
Then you get to hack up the uda.c disk driver from 4.3BSD VAX UNIX to work
on Sun OS.

All in all, not worth it...

efb@ames.arc.nasa.gov (Everett F. Batey II) (04/26/89)

rr%chmsr@gatech.edu (Richard Robison) writes:
>Does anyone know if it is possible to use a DEC RA81 with a Sun 4/280?  We
>are getting rid of our VAX, but it would be nice to keep the disk if

Bill Offered .. 
[[ I seriously doubt it, unless someone has built a UDA-50 controller for
a bus other than the Unibus.  --wnl ]]

Well, I don't think you really want to .. but if you do .. use an NFS
server on your VMS or MicroVMS size host (KDA-50, Bill) and you can  stuff
file debris all over your network .. 

Wish you the best rr .. call me if you like .. 

-- 
           The_Main_User (So Calif SunLUG | Vta-SB-SLO-DECUS)
      efb@elroy.JPL.Nasa.Gov efb@suned1.UUCP efbatey@Vaxb.Navy.MIL
      Statements, Opinions ... MINE ... NOT those of my US Employer