IBM PowerHA SystemMirror for AIX Cookbook

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Introduction to PowerHA SystemMirror for AIX

This chapter contains the following topics:

•What is PowerHA SystemMirror for AIX

•Availability solutions: An overview

•History and evolution

•High availability terminology and concepts

•Fault tolerance versus high availability

•Software planning

•PowerHA software installation

1.1 What is PowerHA SystemMirror for AIX

PowerHA SystemMirror for AIX (also referred to as PowerHA in this book) is the IBM Power Systems™ data center solution that helps protect critical business applications ...

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