This IBM® Redbooks® publication describes the features and functions the latest member of the IBM Z® platform, the IBM z15™ (machine type 8561). It includes information about the IBM z15 processor design, I/O innovations, security features, and supported operating systems.

The z15 is a state-of-the-art data and transaction system that delivers advanced capabilities, which are vital to any digital transformation. The z15 is designed for enhanced modularity, which is in an industry standard footprint.

This system excels at the following tasks:

• Making use of multicloud integration services
• Securing data with pervasive encryption
• Accelerating digital transformation with agile service delivery
• Transforming a transactional platform into a data powerhouse
• Getting more out of the platform with IT Operational Analytics
• Accelerating digital transformation with agile service delivery
• Revolutionizing business processes
• Blending open source and Z technologies

This book explains how this system uses new innovations and traditional Z strengths to satisfy growing demand for cloud, analytics, and open source technologies. With the z15 as the base, applications can run in a trusted, reliable, and secure environment that improves operations and lessens business risk.

Chapter 1. Introduction

Chapter 2. Central processor complex hardware components

Chapter 3. Central processor complex design

Chapter 4. Central processor complex I/O structure

Chapter 5. Central processor complex channel subsystem

Chapter 6. Cryptographic features

Chapter 7. Operating system support

Chapter 8. System upgrades

Chapter 9. Reliability, availability, and serviceability

Chapter 10. Hardware Management Console and Support Element

Chapter 11. Environmentals

Chapter 12. Performance

Appendix A. Channel options

Appendix B. System Recovery Boost

Appendix C. IBM Integrated Accelerator for zEnterprise Data Compression

Appendix D. Frame configurations