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expansion unit (I/O and disk unit). The Data Migration section of this book
covers the procedure used to perform a data move from the source system to the
new model AS/400.
v Models 6xx to Models 8xx
v Models 7xx to Models 8xx
v Models 8xx to Models 8xx
Appendix C, “Possible AS/400 RISC-to-RISC Upgrades” on page 45 has detailed
tables that indicate which upgrades are permitted.
For servers not having an upgrade path, use the data migration section of this
book. This would include scenarios such as, an AS/400 model 540 to an AS/400
model 270.
This information does not specifically cover hardware feature upgrades for the
following features:
v Feature conversion 5065 to 5074
v Feature conversion 5066 to 5079
v Feature conversion 5075 to 5074
If you are performing one of these hardware feature upgrades in a partitioned
environment, see the Logical Partitioning web site at the following address:
http://www-1.ibm.com/servers/eserver/iseries/lpar/
Why Upgrade from One AS/400 System to Another?
You might ask yourself why IBM is doing this and why upgrade your system
now? Most customers need to increase performance and add capacity.
What is An Upgrade?
In this book, an upgrade is any improvement made to the software or the
hardware of an AS/400 model that retains the serial number of the AS/400 model.
This includes moving the compatible hardware, the Licensed Internal Code,
operating system, and the licensed programs to a new target system for better
performance and reliability.
A data migration is the process of moving only the data from one model AS/400
to a new model AS/400.
Hardware Investment for Upgrading
You may choose to upgrade your existing AS/400 RISC system processor, or
replace it with a new, AS/400 model. In either case, you may keep most of the
current system. The process of either an upgrade of your existing system or
moving parts from an existing system to a new system, are called miscellaneous
equipment specification (MES). A MES is the process steps of an upgrade. The
type of MES depends on several factors:
v Your current processor model
v Costs
v Your system availability requirements
The information in this book will help to determine the right path to an upgrade.
This is based on the current model and the goals of the process.
2 AS400e 940x RISC-to-RISC Road Map V4R5
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