Enabling Multiple Oracle RAC Backup Copies

1.

To use the PARALLELISM option, you need to set the initial parameter in pfile or spfile.

Example:

BACKUP_TAPE_IO_SLAVES=TRUE
    

2.

Configure device type.

Example:

RMAN> CONFIGURE DEVICE TYPE DISK PARALLELISM 2 BACKUP TYPE TO BACKUPSET;
    

3.

Specify two copies of data.

Example:

RMAN> CONFIGURE DATAFILE BACKUP COPIES FOR DEVICE TYPE 'SBT_TAPE' TO 2;
    

4.

Specify two copies of log backups.

Example:

RMAN> CONFIGURE ARCHIVELOG BACKUP COPIES FOR DEVICE TYPE 'SBT_TAPE' TO 2;
    

5.

Add the environmental variables for the client and instance on which the iDataAgent is installed.

Example:

allocate channel ch1 type 'sbt_tape'
    

 
PARMS="<software_install_path>/Base/libobk.so,
    

 
ENV=(CvClientName=<client_name>,
    

CvInstanceName=<instance_name>)"

6.

Once you set the parameters, restart the Oracle database and perform backup operations from the CommCell Console.

Example: To restart the database,

1. Connect to the database.

   SQL> connect admin/admin@orcl as sysdba
       
   

2. Shutdown the database.

   SQL> shutdown
       
   

3. Mount the database.

   SQL> startup mount;
       
   

4. Change to archivelog mode.

   SQL> alter database archivelog;
       
   

5. Open the database.

   SQL> alter database open;