Domino R6, WAS and Portal Server

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I am confused by some of this brave new world.

With Domino R6 you get a limited version of WAS you can also run on the
iSeries.  The primary goal of this is to be able to support Domino web
serving.

I)  In what ways is it limited?  I think it comes without EJB support.
True?  Anything else?  Is it limited to a single processor?

II)  There is another product, which runs on top of WAS.  This is called
Portal Server.  The reason that I am interested in it is it is required by
SSA's product to support their web front end of BPCS.  Yet another product
that is charged by processor.

IBM is really pushing LPAR.  Probably for a number of reasons.
A)  It sells disk and more cards.
B)  It increases complexity of your operation, thus perhaps selling
services.
C)  It drastically increases the amount of your downtime.  Perhaps selling
High Availability solutions, which may help sell services.  For instance,
if I run 4 partitions on V5R2 and I want to go to the next release, won't
I have to do 4 upgrades?  IBM charges $3,500 a upgrade therefore wouldn't
they get 4 times what they would have gotten out of a single partition
machine?  Granted, we do our own upgrades, but I don't think you can
upgrade all partitions at once.

We've recently consolidated multiple machines onto one.  IBM's insistence
that we use LPAR to 'reduce cost' of some of their products.  Their
insistence that we run LPAR if we want to currently run the latest and
greatest Domino, Sametime and Quickplace on one iSeries.  And other
attempts to ram LPAR down our throats is upsetting.

Rob Berendt
--
"They that can give up essential liberty to obtain a little temporary
safety deserve neither liberty nor safety."
Benjamin Franklin