If you are planning to implement Access Manager session failover, these components are required:
Web container to run Access Manager: Sun Java System Web Server, Sun Java System Application Server, IBM WebSphere Application Server, or BEA WebLogic.
Sun Java System Directory Server. All Access Manager instances must access the same Directory Server.
Sun Java System Message Queue. The Message Queue broker cluster manages the session messages between Access Manager instances and the session store database.
Berkeley DB (http://www.oracle.com/database/berkeley-db.html) is the default session store database. Use the version that is distributed with the Sun Java Enterprise System 5 release.
Access Manager session failover is supported on the following platforms:
Solaris 10 OS on SPARC, x86, and x64 based systems
Solaris 9 OS on SPARC and x86 systems
Red Hat Linux OS
Microsoft Windows OS
HP-UX OS
For the latest information about the supported versions of these platforms and components, see the Sun Java System Access Manager 7.1 Release Notes.
For more information, see Chapter 6, Implementing Session Failover, in Sun Java System Access Manager 7.1 Postinstallation Guide.