For more information on high availability models, see the following product documentation:
Sun Cluster
Sun Cluster Concepts Guide for Solaris OS
Sun Cluster Data Services Developer’s Guide for Solaris OS
Sun Cluster Overview for Solaris OS
Sun Cluster System Administration Guide for Solaris OS
Veritas Cluster Server
Veritas Cluster Server User’s Guide: http://seer.support.veritas.com/docs/275725.htm