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| Oracle Solaris Cluster Geographic Edition Overview Oracle Solaris Cluster 4.1

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## Geographic Edition Hardware Environment

The Oracle Solaris Cluster hardware configuration is the basis for a Geographic Edition cluster.

The following additional hardware components form a Geographic Edition cluster:

- Oracle Solaris Cluster hardware installations, with attached data storage

- Internet connections for inter-cluster management communication between the Oracle Solaris Cluster installations

- Internet connections for inter-cluster heartbeats

- Connections for data replication

- Connections for custom heartbeats

The Geographic Edition hardware environment supports the following topologies:

- N+1, where multiple clusters that are located at multiple sites are communicating with a single backup cluster

- Cluster pair, where both clusters are online and providing services

Figure 3-2 illustrates a high-level view of the Geographic Edition hardware architecture.

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