Geographic Edition software must be installed on a cluster that is running the Oracle Solaris Operating System and the Oracle Solaris Cluster software. You can install Geographic Edition software at the same time that you install Oracle Solaris Cluster software or at any time afterwards. The Geographic Edition software configuration is identical to the Oracle Solaris Cluster software configuration.
The clusters in a Geographic Edition configuration can run different versions of Geographic Edition software, as long as they are no more than one consecutive version different. For example, the same Geographic Edition configuration could have clusters running either version 4.2 or 4.1. But clusters running version 4.2 and 4.0 cannot run in the same Geographic Edition configuration.