3 Aug
2004
3 Aug
'04
2:49 p.m.
Hi,
[dec pdp-11 question]
anyone know if I can use a RA71 drive all by it's lonesome with an UDA50?
I have some RA90's which are working fine but I found a naked RA71
recently and was wondering if I can use it. (probably not without some
sort of controller board, but I thought I'd ask)
It has a obvious molex power connector and three .1" headers. Two of
the headers look like they want to accept the 8 pin plug from my UDA 50
:-)
probably wishful thinking.
(I've been running the RA90's straight from the UDA50 with the 'red
cable';
this has been working fine and doesn't violate the 'odd # of cables' rule)
-brad
3 Aug
3 Aug
7:06 p.m.
anyone know if I can use a RA71 drive all by it's
lonesome
with an UDA50?
I think Michael Sokolov has covered this one for you.
I doubt that anyone ever actually *tested* an RA7x on
a UDA50, but it's *supposed* to work!
Even in a PDP-11 :-)
probably wishful thinking.
Evey now and then you st8umble across something
in life that just works - and this looks like
it may well be it!
(I've been running the RA90's straight from
the UDA50 with
the 'red cable';
this has been working fine and doesn't violate the 'odd # of
cables' rule)
It certainly works and is AFAIK a perfectly supported
configuration. If you use an RA7x mounted in a BA200
series chassis (say in a MicroVAX III class machine)
then the RA7x would be fed a cable directly from
the KDA50. Admittedly if you used an RA8x or RA9x
you'd have to go cab-to-cab and hence 3 cables to
be supported, but that's just a simple disk-doesn't
-fit-in-cab issue. Towards the end of the VAX 6000's
life, there was a "kit" that allowed you to mount
RA9x and/or RA7x drives in the huge amount of space
available in the bottom of the VAX 6000 cab.
Antonio
--
---------------
Antonio Carlini arcarlini(a)iee.org
7453
days inactive
7453
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brad＠heeltoe.com