This figure illustrates a multinode, clustered architecture in which both the applications and the Oracle Database are managed via Oracle Clusterware for high availability. Starting at the top of the figure, two servers are in a box (outlined with a dotted line) that is labeled "Application/Web Servers." Both of the servers are connected to another box labelled "Oracle Net Services Client Access" and this box is shows separate connections to two nodes:

• Cluster 1 is a single-node cluster that is connected by a line to the "Pool of Storage" to indicate that Node 1 is actively servicing database requests from the applications.

• Cluster 2 is a two-node cluster that is also connected by a line to the "Pool of Storage" to indicate that both Nodes 2 and 3 in this cluster are actively servicing database requests.

At the bottom of the graphic, directly below the Clusters there is a picture of a single row of disks. The six disks in the pool of storage are contained in box labelled "Pool of Storage."

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