Oracle defines its Real Application Clusters (RAC) option as “support for the transparent deployment of a single database across a cluster of servers, providing fault tolerance from hardware failures or planned outages. Oracle RAC running on clusters provides Oracle’s highest level of capability in terms of availability, scalability, and low-cost computing. Oracle RAC supports mainstream business applications of all kinds. Support includes online transaction processing (OLTP), decision support systems (DSS), and Oracle’s unique ability to support mixed OLTP/DSS environments. Support also includes packaged products such as SAP, PeopleSoft, Siebel, and Oracle E*Business Suite, as well as custom applications.”
Plug‑in for Oracle provides support for a limited number of Oracle versions and platforms in a RAC environment. The installation, configuration, backup, and restore procedures differ in a multi-instance RAC environment. This topic offers specifics on how the plug-in operates in an Oracle RAC environment. It only points out the differences between the setup and usage of the plug-in in a multi-instance RAC environment vs. a single-instance or traditional non-RAC environment.
For a list of supported Oracle versions and platforms in a RAC environment, see the Quest NetVault Compatibility Guide.
Quest recommends that the following Oracle RAC documentation be readily available for reference when setting up and using the plug-in in a RAC environment. Use the following link to find documentation for your version of Oracle environment: https://docs.oracle.com/en/database/oracle/oracle-database/index.html. On the Oracle website, look for the following documents and topics.
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Database Administrator’s and Automatic Storage Management Guides. Review information on using Automatic Storage Management (ASM) and on using the ASM Command-Line Utility (ASMCMD). |
Deploying Plug‑in for Oracle in a multi-instance database environment is almost identical to a single-instance database environment except that RMAN-based backups are the only available backup method for RAC databases. The plug-in is installed on one of the nodes that hosts one of the instances for the RAC-enabled database. All RMAN-based backups and restores are performed from this single installation of the plug-in. The following topics detail how the plug-in performs RMAN backups and restores in a RAC environment.
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Plug‑in for Oracle converts the job definition into the corresponding RMAN backup commands. |
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