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© Copyright IBM Corp. 1999 35
Chapter 5. Sizing, Considerations, and Recommendations
Currently the IBM sizing service for J.D. Edwards is able to provide pre-sales
support for two-tier implementation only. In a two-tier implementation the
enterprise server functions as the central database server, supporting clients
running OneWorld business logic.
Configuration can be changed very rapidly in the field, instantly, as the
requirements of business dictate. Additional servers can be added on an
application basis, such as Web, File, Print, without having to rewrite applications
and without need of application programmers for the new systems.
The approach to sizing J.D. Edwards’ OneWorld on the IBM Netfinity platform is
the same as sizing any hardware with an application, that is, to simply identify
individual components, such as:
• Network operating system
• Systems management software
• Networking software
• Applications
• Hardware platform components
When individual components have been identified, determine the individual
requirements of each, then total them up to define the overall requirements. This
is a very simple overview of a sizing process. There are many other aspects to
this, which are too many to consider discussing here and best left to a separate
book on the subject of sizing methodology.
This simple approach does lead to a methodology of sizing that will allow
flexibility within individual components, which is very important in today’s rapidly
and ever changing IT and business environments.
Before submitting a sizing request to IBM, it is strongly suggested that you read
and understand the sizing process of J.D. Edwards’ OneWorld as it discusses
points that you may have not considered.
Note: This chapter covers the sizing requirements of J.D. Edwards’ OneWorld
versions B73.3 and B73.3.1 only.
It is recommended that you carefully read 5.2, “Hardware Considerations” on
page 36 and 5.3, “Software Considerations” on page 50.
While considering your customer’s requirements, you should take notes as you
read. This overall approach will ensure that you have made careful deliberation of
both hardware and software. Once you have reviewed the hardware
considerations and software considerations, review 5.6, “Requests for Sizing” on
page 66.