Guide to IBM PowerHA SystemMirror for AIX Version 7.1.3

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Basic concepts

This chapter introduces the basic concepts of high availability and describes the IBM PowerHA SystemMirror for AIX functions. It also provides information about the basics of virtualization and the Virtual I/O Server (VIOS).

This chapter covers the following topics:

•High availability and disaster recovery

•PowerHA architecture

•PowerHA SystemMirror in a virtualized environment

•Virtualization in IBM Power Systems

•Important considerations for VIOS

•SAN- or FC-based heartbeat configuration in virtualized environment

2.1 High availability ...

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