Introduction of Multitenant Architecture

In this article, we will see how we can take RMAN backup of whole CDB and for the single pluggable database.

To take RMAN backup of the whole CDB we can simply take backup by connecting to target as container database and backup database command.

Let us see by example :

CDB Backup :

Step 1 : Set db_recovery_file_dest and db_recovery_file_dest_size according your database size of whole CDB

Step 2 : Connect RMAN with the target as CDB database

Step 3 : Take RMAN backup using backup database command

We can see in above output whole container database is backed up.

Pluggable Database Backup :

In the multitenant environment, we can take backup of individual pluggable database too.

Let us see the example :

Step 1 : Connect to RMAN with the target as CDB database

Step 2 : We need to use backup pluggable database statement to take pluggable database rman backup

We can also pass comma separated list to take multiple pdbs

To take backup of specific tablespace of specific pdb we can pass a list as pdb_name:tablespace_name ;

Thank you for giving your valuable time to read the above information.

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