Backing Up Individual Tablespaces with RMAN

You can backup one or more individual tablespaces with the BACKUP TABLESPACE
command. You can use this command when the database is mounted or open.

To back up a tablespace:

After starting RMAN, run the BACKUP TABLESPACE command at the RMAN prompt.
This example backs up the users and tools tablespaces to tape, using the
MAXSETSIZE parameter to specify that no backup set should be greater than 10 MB:

BACKUP DEVICE TYPE sbt MAXSETSIZE = 10M TABLESPACE users, tools;

Oracle translates the tablespace name internally into a list of datafiles.

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