🚀 go-pugleaf

In article <2744@rti.UUCP>, shaddock@rti.UUCP (Mike Shaddock) writes:
> We are considering moving some CDC SMD/SMD-E disk drives from one of
> our existing systems to a VAXstation II with BA123 enclosure and are
> trying to decide on a QBUS SMD controller.  I've seen the literature
> from Emulex, Dilog, and Aviv.  I would like to know what experiences
> people on the net have had with any of these controllers, and if you
> could recommend any others.  Please reply by mail, and if there is
> enough interest I will summarize for the net.  Any experiences with
> SMD controllers for a VAXstation 3xxx machine would also be
> appreciated, since we may use one of those instead of a VAXstation II.

I know that there have been a lot of problems with many 3rd party controllers
in uvax 3's (read vaxstation/vaxserver 3XXX) the problems I think are
mainly that the controller microcode is either too slow or not quite doing
Q-bus transactions perfectly (a la DEC ;-)

The Webster WQSMD is a 2 drive quad height controller with on board
formatting/diagnostics, it emulates a dec mscp controller & allows you
to name discs ( eg RA80, RA81, etc )
Documentation is good, (full circuit diagrams included, no microcode listing;-)

AND It does work properly on uvax 3's !!!

There is also an ESDI version of the same controller (WQESDI) controlling
4 drives. (they should by now also have a VMEbus version ;-)

Enquiries can probably be directed to postmaster@wcc.oz
or
	Webster Computer Corporation,
	1270 Ferntree Gully Road,
	Scoresby, Vic. 3179
	Australia


johnd@physiol.su.oz

I have no pecuniary interest in Webster Computer Corporation, I just use
lots of their controllers !