
© Copyright IBM Corp. 2002 1
Chapter 1. zSeries 900 overview
This chapter gives a high-level view of the IBM ^ zSeries 900 family of servers (z900).
All the topics mentioned in this chapter are discussed in greater detail elsewhere in this book.
IBM has expanded the S/390 Complementary Metal Oxide Semiconductor (CMOS) server
family with the introduction of the z900. The S/390 9672 Generation 5 and 6 servers are
upgradable to the z900. The z900 servers represent a new generation of Central Processor
Complexes (CPCs) that feature enhanced performance, support for Linux, enhanced Parallel
Sysplex features, additional hardware management controls, ...