IBM zEnterprise EC12 Technical Guide

An IBM Redbooks publication

Published 06 December 2013, updated 04 March 2015

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ISBN-10: 0738438863
ISBN-13: 9780738438863
IBM Form #: SG24-8049-01
(568 pages)

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Authors: Octavian Lascu, Ivan Dobos, Wolfgang Fries, Hua Bin Chu, Luiz Fadel, Martijn Raave, Fernando Nogal, Frank Packheiser, Vicente Ranieri, Ewerson Palacio, Andre Spahni, Chen Zhu, Parwez Hamid


The popularity of the Internet and the affordability of IT hardware and software have resulted in an explosion of applications, architectures, and platforms. Workloads have changed. Many applications, including mission-critical ones, are deployed on various platforms, and the IBM® System z® design has adapted to this change. It takes into account a wide range of factors, including compatibility and investment protection, to match the IT requirements of an enterprise.

This IBM Redbooks® publication addresses the new IBM zEnterprise® System. This system consists of the IBM zEnterprise EC12 (zEC12), an updated IBM zEnterprise Unified Resource Manager, and the IBM zEnterprise BladeCenter® Extension (zBX) Model 003.

The zEC12 is designed with improved scalability, performance, security, resiliency, availability, and virtualization. The superscalar design allows the zEC12 to deliver a record level of capacity over the prior System z servers. It is powered by 120 of the world's most powerful microprocessors. These microprocessors run at 5.5 GHz and are capable of running more than 75,000 millions of instructions per second (MIPS). The zEC12 Model HA1 is estimated to provide up to 50% more total system capacity than the IBM zEnterprise 196 (z196) Model M80.

The zBX Model 003 infrastructure works with the zEC12 to enhance System z virtualization and management. It does so through an integrated hardware platform that spans mainframe, IBM POWER7®, and IBM System x® technologies. Through the Unified Resource Manager, the zEnterprise System is managed as a single pool of resources, integrating system and workload management across the environment.

This book provides information about the zEnterprise System and its functions, features, and associated software support. Greater detail is offered in areas relevant to technical planning. It is intended for systems engineers, consultants, planners, and anyone who wants to understand the zEnterprise System functions and plan for their usage. It is not intended as an introduction to mainframes. Readers are expected to be generally familiar with existing IBM System z® technology and terminology.

Table of contents

Chapter 1. Introducing the IBM zEnterprise EC12
Chapter 2. Central processor complex hardware components
Chapter 3. Central processor complex system design
Chapter 4. Central processor complex I/O system structure
Chapter 5. Central processor complex channel subsystem
Chapter 6. Cryptography
Chapter 7. zEnterprise BladeCenter Extension (zBX) Model 003
Chapter 8. Software support
Chapter 9. System upgrades
Chapter 10. Reliability, availability, and serviceability
Chapter 11. Environmental requirements
Chapter 12. Hardware Management Console and Support Element
Chapter 13. Performance
Appendix A. IBM System z Advanced Workload Analysis Reporter (IBM zAware)
Appendix B. Channel options
Appendix C. Flash Express
Appendix D. Remote Direct Memory Access over Converged Ethernet (RoCE)
Appendix E. zEnterprise Data Compression (zEDC) Express
Appendix F. Native Peripheral Component Interconnect Express (PCIe)

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