A full system recovery of individual Oracle physical nodes in an RAC setup involves the following phases:
Preparing for a Full System Recovery
Before you begin a disaster recovery, make sure to perform the following:
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Perform frequent Oracle RAC backups that include the control file and the latest file system.
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Make sure that the recovery catalog is available on a separate computer.
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Make sure to select Resync Catalog in Subclient Properties (Backup Arguments) tab of the default subclient. This is required for successfully performing a full system restore in the event of a destroyed or damaged client.
Note: The software automatically selects this if you run Oracle 10G or later.
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Use the file system agent to back up the following Oracle information
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The ORACLE HOME directory
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The cluster configuration
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The voting disk (OCR)
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Recovering the Oracle RAC Databases
To recover the Oracle RAC database in the event of a disaster, perform the following tasks:
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Restore the Oracle RAC Database to the same or different client computer.