[Simh] HSC vs UDA/QDA

[Tim Stark]

Hmm. How to use LAVC for clustering?

Thanks,
Tim

-----Original Message-----
From: Simh [mailto:simh-bounces at trailing-edge.com] On Behalf Of Paul Koning
Sent: Wednesday, March 8, 2017 8:27 PM
To: Johnny Billquist <bqt at softjar.se>
Cc: simh at trailing-edge.com
Subject: Re: [Simh] HSC vs UDA/QDA

I think the significant different for emulation, as opposed for the real hardware, is that CI is a multi-access network (like Ethernet).  All the hosts can see all the disks, and in addition the hosts have peer to peer communication.  VAXclusters use both of these things.  You can of course do them via LAVC (same services but over Ethernet).  With CI emulation you get a second way.  That enables running clusters with VMS versions predating LAVC, if that is interesting to anyone.

	paul


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