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:
Perform frequent Oracle RAC backups that include the control file and the latest file system.
Make sure that the recovery catalog is available on a separate computer.
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.
Use the file system agent to back up the following Oracle information
The ORACLE HOME directory
The cluster configuration
The voting disk (OCR)
Recovering the Oracle RAC Databases
To recover the Oracle RAC database in the event of a disaster, perform the following tasks:
Restore the Oracle RAC Database to the same or different client computer.