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.