5486Up8x.fm Draft Document for Review October 18, 2004
310 IBM Eserver i5 and iSeries System Handbook
5250 OLTP considerations
iSeries 5250 online transaction processing (OLTP) is a powerful, efficient, and
reliable transaction processor that is used by many customers. If upgrading to the
Model 520, 550, 570, 595, 810, 825, 870, or 890 with an Enterprise Edition, a
maximum 5250 CPW is offered. The server’s entire resources are available for
5250 OLTP applications if desired. The High Availability and Capacity BackUp
Editions also provide maximum 5250 CPW.
A Model 520, 550, 570, 595, 810, 825, 870, or 890 with a Standard Edition has
zero 5250 Commercial Processing Workload (CPW). The maximum 5250 CPW
is available with an upgrade from a Standard to Enterprise Edition. Many
additional software, hardware, services, and education components are included
in the Enterprise Edition. However, the additional components are not included
during a Standard Edition upgrade to an Enterprise Edition.
The iSeries 820, 830, 840, and 890 processors that were announced in 2002
without an Enterprise Edition, as well as earlier AS/400e models, use a set of
specific 5250 CPW points designated by a 5250 interactive feature code.
Customers are encouraged to review current 5250 CPW utilization with PM
eServer iSeries, Management Central, PATROL for iSeries – Predict, or
Performance Tools for iSeries.
You can find further information about 5250 CPW in Chapter 3, “Workload,
capacity, and performance” on page 41.
Hardware migration considerations
When migrating to iSeries models from earlier models, keep the following
considerations in mind:
Model 520, 550, 570, and 595 processor features require IBM i5/OS V5R3.
Some upgrades require a two-step approach to reach the requested model.
An upgrade is performed via an intervening processor model or edition.
Main storage features of one model typically cannot be used in a different
model. However, some Model 810 and 825 main storage features can be
used in the Model 520, 550, or 570 if quad rules for these systems are
fulfilled.
Memory in the #2469 2-way Model 810 processor is not compatible and does
not migrate to the Model 550 or 570. Refer to the following diagram to see
what memory can be reused when upgrading to the Eserver i5 servers.
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