VMS and supported VAX hardware
bqt at update.uu.se
Sat Oct 3 17:51:28 CDT 2015
On 2015-10-03 23:00, Pontus Pihlgren wrote:
> Is there a table of VMS versions and hardware that they support. I know that 7.3 is
> the last that supports VAX. But before that, are there limitations to what versions
> run on which hardware.
I know that DEC had some information on the first version of VMS for
specific models, but I don't know if I've a comprehensive list.
> For instance, would VAX/VMS 1.0 run on a VAXstation 4000? Or would 7.3 run on a
VAX/VMS 1.0 only ran on the 11/780. No other hardware supported. So, no.
VAX/VMS 1.0 would not run on a VAXstation 4000.
OpenVMS 7.3 was the last release. And with that release, a few early VAX
models were officially not supported. However, I think it should work,
in theory. There is always the question of the machine being slow
enough, or not have enough memory, to maybe cause problems. But DEC
never removed the hardware support code. But at OpenVMS 7.3, they no
longer even had the hardware around to verify that it worked, so it was
officially unsupported. (Or that's my understanding anyway.)
As far as I can remember, none of the VAX-11 models were officially
supported by OpenVMS 7.3. The oldest model that were supported (if I
remember right) was the VAX 86x0.
It should be possible to find the OpenVMS/VAX 7.3 upgrade manual online,
which should give a little more detail on which models were dropped form
> Also, what separates MicroVMS from VMS?
MicroVMS was specifically tailored for MicroVAX machines, back when they
had rather limited amount of disk. One RD53 or so...
So, it was trimmed down, with components not needed for the specific
platforms removed, some things tailored differently, and some things
moved into optional extras, which you could buy/install if you happened
to have more money and hardware resources.
It also came on one TK50, or about 20 RX50 floppies, for installation.
(I have some "fun" memories of installing it from floppies when I was
working at DEC in the mid-80s... Remind me when we meet, and I'll tell
you all about it.)
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