About This Book
This book contains information about the Resource Access Control Facility (RACF),
which is part of the OS/390 Security Server. The Security Server has two
components:
RACF
OpenEdition DCE Security Server
For information about the OpenEdition DCE Security Server, see the publications
related to that component.
This book provides information to guide you through the migration process from
OS/390 Release 3 Security Server (RACF) or RACF to OS/390 Release 4 Security
Server (RACF).
The purpose of this book is to ensure an orderly transition to a new RACF release.
It is
not
intended for customers installing RACF for the first time or installing a
release prior to Security Server (RACF) Release 3. First-time RACF customers
should read
OS/390 Security Server (RACF) Introduction
and use the program
directory shipped with the product when they are ready to install the product.

Who Should Use This Book

This book is intended for experienced system programmers responsible for
migrating from OS/390 Release 3 Security Server (RACF) to OS/390 Release 4
Security Server (RACF). This book assumes you have knowledge of OS/390
Release 3 Security Server (RACF).
If you are migrating from a RACF 2.2, or earlier, or from an OS/390 Security Server
release prior to OS/390 Release 3, you should also read previous versions of this
book, as described in “Migration Paths for OS/390 Release 4 Security Server
(RACF)” on page 21.

How to Use This Book

This book is organized in the following order:
Chapter 1, “Planning for Migration” on page 1, provides information to help you
plan your installation's migration to the new release of RACF.
Chapter 2, “Release Overview” on page 5, provides an overview of support in
the new release.
Chapter 3, “Summary of Changes to RACF Components for OS/390 Release
4” on page 11, lists specific new and changed support for the new release.
Chapter 4, “Planning Considerations” on page 21, describes high-level
migration considerations for customers upgrading to the new release of RACF
from previous levels of RACF.
Chapter 5, “Installation Considerations” on page 25, highlights information
about installing the new release of RACF.
Copyright IBM Corp. 1994, 1997 xi