Introduction to Geographic Edition Software

Oracle Solaris Cluster Geographic Edition (Geographic Edition) software is a layered extension of the Oracle Solaris Cluster software. The Geographic Edition software protects applications from unexpected disruptions by using multiple clusters that are separated by long distances and by using a redundant infrastructure that replicates data between these clusters. On Geographic Edition 3.3, the clusters can be global clusters, zone clusters, or a combination of both. Data replication software enables applications that are running on a Geographic Edition cluster to tolerate disasters by migrating services to a geographically separated secondary cluster. A disaster such as an earthquake, a fire, or a storm might disable the cluster at the primary site. If a disaster occurs, the Geographic Edition cluster can continue to provide services by using the following levels of redundancy:

• A secondary cluster

• Duplicated application configuration on the secondary cluster

• Replicated data on the secondary cluster

This chapter gives a high-level overview of the Geographic Edition product. It contains the following sections:

• Business Continuity

• Making Applications Highly Available With Geographic Edition Software

• Recovering From a Disaster

• Key Features of Geographic Edition Software

• Administration and Configuration Tools