The following message is a courtesy copy of an article
that has been posted to bit.listserv.ibm-main,alt.folklore.computers as well.


[email protected] (Shmuel Metz  , Seymour J.) writes:
> That has nothing to do with whether IBM's licensing policies violated
> antitrust laws. The fact remains that IBM refuses to license, e.g., z/OS,
> on competitive systems.

major production platform that FLEX sold on was Sequent ... and then IBM
bought Sequent ... and then stopped selling Sequent boxes.

FLEX had sold some on Compaq (later HP) ... but that seemed to be more
for test/development.

Before IBM bought Sequent, we did some consulting for Chen when he was
CTO at Sequent
http://en.wikipedia.org/wiki/Sequent_Computer_Systems

Sequent & FLEX looked at providing FLEX on an Itanium-based Sequent box
... but Itanium then had performance issues and delays.

we had gotten involved with SCI effort before leaving IBM and then
spent some time with various places doing SCI efforts ... including
Sequent
http://en.wikipedia.org/wiki/Scalable_Coherent_Interface

above mentions DG AViiON and Sun using SCI as well as Sequent.  There
was also SGI and Convex. DG & Sequent was 64 four (intel) processor
boards interconnected with SCI (256 Intel processors ).  Convex
(Exemplar) was 64 two (HP RISC) processor boards interconnection with
SCI (128 HP RISC processors).

Much earlier Chen had been at Cray computers and was credited with the
XMP. He then left and formed his own supercomputer company ... with lots
of funding from IBM (which was eventually acquired by Sequent):
http://en.wikipedia.org/wiki/Steve_Chen_%28computer_engineer%29

Sequent ran both NT and Dynix (their "enhanced" UNIX) system on their
pre-NumaQ intel processor SMPs. The Sequent people in that period
claimed to have done much of the NT SMP scale-up & parallelization work.

-- 
40+yrs virtualization experience (since Jan68), online at home since Mar1970

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