A resource type is a collection of properties that describe an application to the cluster. This collection includes information about how the application is to be started, stopped, and monitored on nodes of the cluster. A resource type also includes application-specific properties that need to be defined in order to use the application in the cluster. Sun Cluster data services has several predefined resource types. For example, Sun Cluster HA for Oracle is the resource type SUNW.oracle-server and Sun Cluster HA for Apache is the resource type SUNW.apache.