By Jeff Victor-Oracle on Jan 29, 2009
The most significant new functionality is a feature called "Zone Clusters" which, at this point, 'merely' provides support for Oracle RAC nodes in Zones. In other words, you can create an Oracle RAC cluster, using individual zones in a Solaris Cluster as RAC nodes.
Further, because a Solaris Cluster can contain multiple Zone Clusters, it can contain multiple Oracle RAC clusters. For details about configuring a zone cluster, see "Configuring a Zone Cluster" in the Sun Cluster Software Installation Guide and the clzonecluster(1CL) man page.
The second new feature is support for exclusive-IP zones. Note that this only applies to failover data services, not scalable data services nor with zone clusters.