You can create a standby database to use as the primary failover database, or as a reporting database by opening the database in read-only mode.
Create the standby database with a configured instance.
Apply the archived redo logs from the primary database to update the standby database.
Note
The standby database does not have a unique database identifier (DBID).
Before You Begin
- 
To create a standby database and use a configured instance, on the destination host add an instance on the CommCell Console. 
Procedure
- 
From the CommCell Browser, go to Client Computers > client > Oracle. 
- 
Right-click the instance, then go to All Tasks > Browse and Restore. The Browse and Restore Options dialog box appears. 
- 
Select Latest Backup, and then click the View Content button. 
- 
Select the database, and then click the Recover All Selected button. The Oracle Restore Options dialog box appears. 
- 
Click RMAN Duplicate DB, and then click Next. The Oracle RMAN Duplicate DB Options dialog box appears. 
- 
Select the standby database host from the Destination Client list. 
- 
Select Duplicate For Standby. 
- 
Select the Recover check box to recover the standby database. 
- 
If you want the system to refer to the target database's control files rather than the Recovery Catalog database select NO CATALOG (already selected by default). 
- 
If you want the system to refer to the Recovery Catalog database, unselect NO CATALOG. In the Catalog Connect box enter the Oracle catalog connect string credentials. - 
Enter the catalog user name. 
- 
Enter the catalog user password. 
- 
Enter the Oracle service name. 
 
- 
- 
On the Stream tab, click Refresh All to verify that the status of the standby database is STARTED. 
- 
Optional: View or customize the RMAN script that is generated from the selected options. For more information, see Viewing Oracle Restore RMAN Scripts and Customizing Oracle Restore RMAN Scripts. 
- 
Click OK to start the restore.