IBM PowerHA SystemMirror V7.2.3 for IBM AIX and V7.22 for Linux

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Introduction to IBM PowerHA SystemMirror for IBM AIX

This chapter provides an introduction to IBM PowerHA SystemMirror for newcomers to this solution and a refresher for those users that have implemented PowerHA SystemMirror and used it for many years.

This chapter covers the following topics:

•What is PowerHA SystemMirror for AIX

•Availability solutions: An overview

•History and evolution

•HA terminology and concepts

•Fault tolerance versus HA

•Additional PowerHA resources

1.1 What is PowerHA SystemMirror for AIX

PowerHA SystemMirror for AIX (also ...

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