...
In releases IBM i 6.1 and later, to To override the media policy that is specified in the Automatic duplication To media policy field when STRBKUBRM is run, do the following.
...
Where nnnnnnnnnn is the media policy that will be used as the to media policy on the auto-duplication.
NOTE: In releases IBM i 7.1 and IBM i 6.1, the following PTFs or their superseding PTFs are required:
...