The image shows two computers in an OracleAS Active Failover Cluster environment. Each computer has its own local storage. They can also access a shared storage device. Each local storage device contain two items: OracleAS Infrastructure 10g and the oraInventory directory. The shared storage contains raw devices for the metadata repository database.

The image also shows multiple computers running middle tiers. These computers send Oracle Net requests directly to the Real Application Clusters computers. But HTTP, HTTPS, and LDAP requests go through a load balancer before reaching the Real Application Clusters computers.