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

Planning considerations

This chapter provides information to help you plan the implementation of IBM PowerHA SystemMirror.

This chapter covers the following topics:

•Introduction

•CAA repository disk

•CAA tunables

•Important considerations for Virtual I/O Server

•Network considerations

•Network File System tiebreaker

3.1 Introduction

There are many different ways to build a highly available environment. This chapter describes a small subset.

3.1.1 Mirrored architecture

In a mirrored architecture, you have identical or nearly identical physical ...