Tommy writes:

>Our shop plan to replace the 2 sets of IBM model  2064-2C5 machine and we
>are connected by parallel sysplex with sysplex timer 9037-002. I found
>the model S18 with two books will be a good choice but I have the
following
>question?
>[....]
>1. Can I order each book with 4 CPs that mean total 8 CPs.

You can order a 2094-S18 with 8 CPs, certainly.  However, which books run
the CPs is a technical implementation detail that might be in the hands of
the IBM engineers.  Work with your IBM IT Specialist on that issue.  It
could be that all 8 CPs will run (day to day) on the first book, and that
may not be a bad thing.  Is there a particular reason why you want 4 on one
book and 4 on the other? (Or why you want 8?)

>2. where can I find the actual process model ?  I only found,
>      2094-401 to 2094-408  (1 book)
>      2094-501 to 2094-508  (2 oooks)
>      2094-601 to 2094-608  (3 books)
>      2094-701 to 2094-754  (4 books)
>      from www-03.ibm.com/servers/eserver/zeries/lspr/zSerieszOS16MI.html

That's your choice, based on the order you place with IBM.  With 8 CPs
enabled the last digit will be an 8.  So it'll be a -408, -508, -608, or
-708, depending on your requirements.  For the -708 model all 8 engines run
at full speed.  My guess is you're looking at a -508 model (if you are
taking four 2064-2C5 systems and migrating the workload to two z9 ECs), but
that's just a guess.  Of course you can also vary the number of engines if
something other than 8 makes sense.  The IBM IT Specialist or business
partner can help you figure out what makes the most sense.

>3.  Can I still use the sysplex timer 9037-002 without using the STP ?

Yes, you can.  The z9 EC still supports the Sysplex Timers.  But you might
want to look at STP anyway.  Consider the cost of maintenance for the
Sysplex Timers, for example, as well as floor space and electricity.  STP
is supposed to become generally available in January, 2007.  You can also
make this decision separately in the future.  (For example, if you want to
migrate the workload first, then worry about the Sysplex Timers, say, 6
months later, that's could be a perfectly reasonable strategy.)

>4.  Except the 8 CPs allocate half in each book....is there another good
choice?

Many are possible, but you'll have to sit down with a professional to look
at your workload.

>5.  If I buy another new one S18 model...is it too complex to interconnect
>with the 2 sets of 2064-2C5...as you know the HCD ..is quite different..

I'm a little confused since it sounds like you want to replace the z900s
with the z9 EC.  Are you talking about interconnection during migration?

By the way, if you don't have a DR system, you might consider keeping some
number of the z900s (maybe not all) and moving them to another data center.
Talk to your IBM or business partner contacts about this to see if it makes
sense financially and technically.

- - - - -
Timothy Sipples
IBM Consulting Enterprise Software Architect
Specializing in Software Architectures Related to System z
Based in Tokyo, Serving IBM Japan and IBM Asia-Pacific
E-Mail: [EMAIL PROTECTED]
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