Chapter 4. Planning Considerations
This chapter describes the following high-level planning considerations for
customers upgrading to OS/390 Release 4 Security Server (RACF) from OS/390
Release 3 Security Server (RACF):
Migration strategy
Migration paths
Hardware requirements
Compatibility

Migration Strategy

The recommended steps for migrating to a new release of RACF are:
1. Become familiar with the release documentation.
2. Develop a migration plan for your installation.
3. Install the product using the program directory shipped with OS/390.
4. Use the new release before initializing major new function.
5. Customize the new function for your installation.
6. Exercise the new function.

Migration Paths for OS/390 Release 4 Security Server (RACF)

From OS/390 Release 3 Security Server (RACF)
If you are an OS/390 Release 3 Security Server (RACF) customer, you can
migrate to OS/390 Release 4 Security Server (RACF) if you meet the OS/390
release requirements.
From OS/390 Release 2 Security Server (RACF)
If you are an OS/390 Release 2 Security Server (RACF) customer, you can
migrate to OS/390 Release 4 Security Server (RACF) if you meet the OS/390
release requirements. You should also read

OS/390 Security Server (RACF

Planning: Installation and Migration

for Release 3.
From OS/390 Release 1 Security Server (RACF) or RACF 2.2
If you are an OS/390 Release 1 Security Server (RACF) or RACF 2.2
customer, you can migrate to OS/390 Release 4 Security Server (RACF) if you
meet the OS/390 release requirements. (OS/390 Release 1 Security Server
(RACF) and RACF 2.2 are functionally equivalent.) In addition to this book, you
should read:
OS/390 Security Server (RACF) Planning: Installation and Migration
for
OS/390 Release 2 (GC28-1920-01) and Release 3 (GC28-1920-02)
From RACF 1.9.2 or RACF 2.1
If you are a RACF 1.9.2 or 2.1 customer, you can migrate to OS/390 Release 4
Security Server (RACF) if you meet the OS/390 release requirements. If you
have RACF 2.1 installed, in addition to this book, you should read:
OS/390 Security Server (RACF) Planning: Installation and Migration
for
OS/390 Release 2 (GC28-1920-01) and Release 3 (GC28-1920-02), and
Copyright IBM Corp. 1994, 1997 21