well, medium sized means that these were usuallyin small rackmount 
cabinet, typically something liek an H9642.. prbably weighs about 180-200 Kg

you can put lots of processors in these though, ultrix and VMS support 
it.  (with 2 processors, it woudl be a 6320, and so on) 

happy hacking
isildur

On Tue, 4 May 1999, Michael Kukat wrote:

> > its a medium sized VAX, nominally about 3.8 VUPS, and has XMI and BI
> > buses. It wouldnt be supported, as there is no XMI or BI support in NetBSD
> > or any other free UNIX. Ultrix should run on this machine without problem,
> > or VMS of course.
> > Support for the XMI and BI VAXen rests on finding documentation for that
> > hardware, which so far has proven very elusive and difficult to find.
> > On the same hand, Ultrix source would also be of great help!
> 
> Let's see, what "medium sized" means :-). Ok, as i got my 4000 VLC it
> also was not supported, i found out enough, to get a bit of life out of
> it, so i think, i'll get this 6310, if it fits somewhere in the corner
> here. If it doesn't fit, i'll inform the list and give it away... 3,8
> VUPs is nice enough, half speed of my VAXstation 3100m76s.
> 
> Hope, i get some docs with it...
> 
> so long... Michael
>