> has anyone ever been known to use multiple KA630s? Ive read that this is
> possible,but haven't seen anything else. Could NetBSD be made to use
> them?

You want to read Micronote #26, "Microvax II Multicomputing", where
it details the hardware requirements and the software interface.

In particular, in the preface it reads:

      The multicomputing capability  is  a  hardware  design  feature  of  the
      MicroVAX  II.  It allows a maximum of four MicroVAX II CPUs to reside on
      the same Q-bus.  Figure 1 below is a block diagram which shows how 2  of
      a  possible  4 CPUs may be configured on the bus.  One of the processors
      will be the arbiter and the others will be auxiliaries.

Just in case you don't have a complete printed set of Micronotes handy,
you can find the "new" set on the web at

http://metalab.unc.edu/pub/academic/computer-science/history/pdp-11/hardware/micronotes/numerical/

-- 
 Tim Shoppa                        Email: shoppa@trailing-edge.com
 Trailing Edge Technology          WWW:   http://www.trailing-edge.com/
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