3.1.2 Load-balancing cluster system

Organization of this subsection
(1) Configuration of Oracle in a load-balancing cluster system (Oracle Real Application Clusters)
(2) Configuration of PFM - RM for Oracle in a load-balancing cluster system

(1) Configuration of Oracle in a load-balancing cluster system (Oracle Real Application Clusters)

Oracle Real Application Clusters (or Oracle Parallel Server) is a system consisting of multiple nodes running Oracle that function as a single Oracle system that processes a single database. The data is stored on a shared disk and is shared by all nodes.

Distribution of workload to multiple nodes improves scalability and fault tolerance.

Although applications see the set of nodes as a single Oracle system, each node runs an Oracle system with a unique instance name. For example, a database might be run by Oracle instances SID=ora1 at node1 and SID=ora2 at node2. Applications use a global database name to access the database via Oracle Net Services.

For details about Oracle Real Application Clusters (or Oracle Parallel Server), see your Oracle documentation.

(2) Configuration of PFM - RM for Oracle in a load-balancing cluster system

To run PFM - RM for Oracle in a load-balancing cluster system, configure PFM - RM for Oracle as shown in the following figure.

Figure 3-3 Example configuration of PFM - RM for Oracle in a load-balancing cluster system

[Figure]

An Oracle system with a unique instance name is run on each node. PFM - RM for Oracle monitors the Oracle instance on each node.

As with a single-node system, set up PFM - RM for Oracle and configure it to monitor each node's Oracle Real Application Clusters instance.

Do not register PFM - RM for Oracle in the cluster software.

Note:
To run PFM - RM for Oracle in a load-balancing cluster system and monitor Oracle Real Application Clusters (or Oracle Parallel Server), handle PFM - RM for Oracle as you would in a system with many single nodes. That is, handle it the same way as in a normal non-cluster system.