[Simh] VMS versions with LAVC support

[Peter Allan]

Actually LAVC was available well before VMS 5.5-H2. As was correctly
reported, VAXclusters were originally introduced with VMS 4.0, but required
"big VAXen" connected to an HSC50.

LAVC was introduced around VMS 4.5. I think it was VMS 4.5A, though I could
be wrong. Certainly the release notes for VMS 4.6 (available on bitsavers)
refer to local area VAXclusters and I was managing a VAXcluster when we
were running VMS 4.7.

Cheers

Peter Allan


On 11 March 2017 at 15:37, Timothy Stark <fsword7 at verizon.net> wrote:

>
> Well, I learned that oldest VMS that support  LAVC is 5.5-H2.  Oldest VMS
> version support VAXcluster is 4.0. For 4.0 to 5.5, can it handle DECnet as
> cluster? More one thing, is that possibly CI-to-Ethernet bridge adapter for
> older VMS software?
>
> I will consider to use VMS as MSCP server instead right now.
>
> Tim
>
> Sent from my iPhone
>
> > On Mar 11, 2017, at 9:38 AM, Johnny Billquist <bqt at softjar.se> wrote:
> >
> >> On 2017-03-11 14:48, Tim Stark wrote:
> >> Folks,
> >>
> >> Thanks for many replies. I learned a lot about VAX clustering. I will
> use multicast Ethernet for clustering.  I have more one question. Is that
> possible to emulate HSC controllers with LAVC access?
> >
> > Since HSC don't have ethernet, there is no software on the VMS side that
> expects to find a HSC on LAVC to start with.
> > However, VMS boxes can serve MSCP between themselves as well, and that
> can be done over whatever medium VMS boxes are talking.
> >
> > You could also explore infoservers...
> >
> > You should probably stop thinking "HSC". HSC is just one of a number of
> MSCP servers. Why are you so hung up on specifically HSC and CI
> interconnects?
> >
> >    Johnny
> >
> > --
> > Johnny Billquist                  || "I'm on a bus
> >                                  ||  on a psychedelic trip
> > email: bqt at softjar.se             ||  Reading murder books
> > pdp is alive!                     ||  tryin' to stay hip" - B. Idol
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