Disaster Recovery Framework Software Environment
The disaster recovery framework provides tools for managing geographically separated clusters. The disaster recovery framework also maintains availability of services between clusters by utilizing disaster recovery framework resource management features.
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Oracle Solaris software
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Oracle Solaris Cluster software
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Disaster recovery framework software
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Application data service agents
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Data replication software
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Solaris Volume Manager software
The following software components form a disaster recovery framework cluster:
The following figure illustrates how components of the disaster recovery configuration interrelate.
Figure 4 Overview of Disaster Recovery Framework Software Architecture
The clusters in a disaster recovery framework configuration can run different versions of Oracle Solaris Cluster software, as long as the versions are no more than one consecutive release different. For example, the clusters in one disaster recovery framework configuration could run either version 4.2 or 4.3, or run either version 4.2 or 4.1. But you cannot have clusters running either version 4.1 or 4.3 in the same disaster recovery framework configuration.
You can install and remove the disaster recovery framework software independently of the underlying Oracle Solaris Cluster installation. The installation and the uninstallation processes do not require an additional node reboot or cluster downtime.