[Info-vax] x86-64-based Superdomes on the way (says HP)

John Wallace johnwallace4 at gmail.com
Tue Nov 29 17:18:59 EST 2011


On Nov 29, 8:14 pm, hel... at astro.multiCLOTHESvax.de (Phillip Helbig---
undress to reply) wrote:
> In article <4ed3dea8$0$6909$e4fe5... at news2.news.xs4all.nl>, MG
>
> <marcog... at SPAMxs4all.nl> writes:
> > On 27-11-2011 11:26, Phillip Helbig---undress to reply wrote:
> > > Clustering is important, and AFAIK no other system can do what VMS could
> > > do already 20 years ago, but it is one relatively small part of VMS.
>
> > Way more than 'just' 20 by now, but yes.
>
> Not that much.  When was clustering introduced?  Late 1980's?

I'm not aware of any other system that does what VMS does, but one
which was briefly interesting in the 1990s was briefly owned by CPQ
(having been developed for Tandem) and eventually became open source:
the former Compaq/Tandem NonStop Clusters for UNIXware/SCO UNIX. The
open source successor is OpenSSI but it doesn't seem to be very
visible or very actively developed, which seems to me (as an observer
rather than a user) be a bit of a shame.

A great many features recognisable to VMS cluster folks would be
recognisable here: single system image, single clusterwide filesystem
(and given that pretty much everything on UNIX is a file or accessible
as a file, think what that means: clusterwide processes, etc). A
little bit more can be read at:
http://en.wikipedia.org/wiki/UnixWare_NonStop_Clusters and elsewhere.

It's UNIX, so it's not VMS. But it's clustered UNIX.



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