Oracle RAC with NetBackup best practices
The Real Application Clusters (RAC) option allows multiple concurrent instances to share a single physical database.
Oracle database backup and recovery is more difficult as databases grow in size and greater demands on database availability limit the time to perform backups. Often the backup time window is too short to accommodate a complete backup process by using only one backup node in the cluster. Database administrators need more efficient methods to complete these large backups in the allotted time. For the Oracle RAC database, Oracle can split the backups into pieces and send them in parallel from multiple nodes, which shortens the processing time.
This section describes the methods that can be used to backup the Oracle RAC database. You can use one node to backup the database or balance the backup load across multiple nodes of an Oracle RAC database.
Note:
NetBackup has full Oracle Real Application Clusters (RAC) when you set up an Oracle policy in the NetBackup web UI. The NetBackup Administration Console does not have support for Oracle RAC policy setup. However, this manual contains all information for creating an Oracle RAC policy that applies to the policy creation in the web UI. The NetBackup Web UI Security Administrator's Guide contains the instructions to add an Oracle RAC.
Warning:
Note that all setup information in Appendix B is deprecated as of NetBackup 8.3. The next NetBackup maintenance release removes the support for the setup that is described in this appendix. All OIP users should use the Oracle RAC feature in the web UI to protect any RAC setup.
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About NetBackup for Oracle operations
Example RAC configuration: Failover name exists and backup is not load balanced
Example RAC configuration: Failover name exists and backup is load balanced
Example RAC configuration: Failover name is not available and backup is not load balanced