This section helps you to adapt the configuration of your Oracle Solaris Cluster software for the installation of Disaster Recovery framework software. This section also helps you to plan the installation of your data replication software.
The following information is provided in this section:
The Disaster Recovery framework software must be installed on a cluster that is running the Oracle Solaris OS and Oracle Solaris Cluster software. You can install Disaster Recovery framework software at the same time that you install Oracle Solaris Cluster software or at any time afterwards. The Disaster Recovery framework software configuration is identical to the Oracle Solaris Cluster software configuration.
The clusters in a Disaster Recovery framework configuration can run different versions of Disaster Recovery framework software, as long as they are no more than one consecutive version different. For example, the same Disaster Recovery framework configuration could have clusters running either version 4.4 or 4.3. But a cluster running version 4.4 cannot run in the same Disaster Recovery framework configuration as a cluster running version 4.0.
A cluster that is using the Disaster Recovery framework with a data replication product is subject to the standard configuration rules of a cluster that is running the data replication product with Oracle Solaris Cluster software. Partner clusters must have compatible software configurations to support data replication between the clusters.
The Disaster Recovery framework supports the following data replication products:
MySQL software
Oracle Data Guard software, in configurations that use Oracle Database software
Oracle Solaris ZFS snapshots feature
Oracle ZFS Storage Appliance software
Disaster recovery framework script-based plug-ins
The following sections describe the types of replication that the above products provide:
The ZFS snapshots feature of Oracle Solaris software is a host-based replication method. This method consists of software installed on a host that controls replication from one server to a secondary server.
Oracle ZFS Storage Appliance uses a storage-based method. This method uses replication that is built into the storage hardware. If you use Oracle ZFS Storage Appliance software, you must install the software on each node of the cluster.
Oracle Data Guard functionality is part of the Oracle Database software and so does not require you to install additional software onto your system. The Disaster Recovery framework module for Oracle Data Guard can only be used with Oracle databases.
MySQL database software offers a built-in replication protocol. Configuring the Disaster Recovery framework MySQL replication module enables you to control replication between MySQL instances on each site.
The Disaster Recovery framework script-based plug-in enables the user to develop replication modules to integrate additional replication protocols into the Disaster Recovery framework. The plug-in provides the interface to register custom replication control scripts with the Disaster Recovery framework.
See the Oracle Solaris Cluster 4.4 Compatibility Guide ( https://community.oracle.com/docs/DOC-997312) for information about volume management support for your data replication product.