Hello,
The media set can be selected in the backup job properties, however it is necessary to verify that there is an appendable or overwritable media available in the targetted media set, this is determined as per the backup job specifications to either overwrite or append to tape.
For detailed information on media management please refer to the admin guide as well as the following technotes:
http://support.veritas.com/docs/192265
http://support.veritas.com/docs/237374
NOTE : If we do not receive your reply within two business days, this post would be marked assumed answeredand would be moved toanswered questions pool.