In the section Sun Cluster Topologies for x86 in Sun Cluster Concepts Guide for Solaris OS, the following statement is out of date for the Sun Cluster 3.2 release: "Sun Cluster that is composed of x86 based systems supports two nodes in a cluster."
The statement should instead read as follows: "A Sun Cluster configuration that is composed of x86 based systems supports up to eight nodes in a cluster that runs Oracle RAC, or supports up to four nodes in a cluster that does not run Oracle RAC."