On Oct 2, 15:09, Ethan Dicks wrote:
  --- Pete Turnbull <pete(a)dunnington.u-net.com>
wrote: 
   The QBus
equivalent of an RK11 is an RKV11-D, which is a single quad
 board, controlling up to eight RK05's.  They were moderately common on
 larger 11/03 and some 11/23 systems. 
 Umm... _my_ RKV11D is a quad-slot box.  There's a dual-height card
 that sits on the Qbus with a pair of 40-pin cables that go to a
 small enclosure that is mostly filled with an RK11D.  Another set
 of 40-pin cables goes from that to a short dual-height paddle card
 that goes in the first drive.
 Is there more than one variant of the RKV11D? 
 
No, you're right -- I don't know what I was thinking of there.  An RKV11-D
is basically an RK11-D with a QBus interface.
--
Pete                                            Peter Turnbull
                                                Network Manager
                                                University of York