With Tivoli® Storage Manager Version 7.1.1, you can choose which Tivoli Storage Manager database backups are compressed.
To enable this feature, specify the COMPRESS parameter on the BACKUP DB or SET DBRECOVERY commands.
The size of the Tivoli Storage Manager database has increased with the use of data deduplication. As a result, the space requirements for the database backups also increased. By compressing volumes that are created during database backups, you reduce the amount of space that is required for your database backups.