@F@bEDF 

You can create a new aux copy within the same policy going to disk and set the “source copy” as the tape copy. The aux copy will read from the tape copy and write to the disk copy.
 

Creating a Synchronous Copy Using a Storage Pool - https://documentation.commvault.com/11.26/expert/118965_creating_synchronous_copy_using_storage_pool.html

This, although Commvault works at a job work more-so than a tape level. So view contents on the tape, mark down the job IDs associated with the take, and then manually pick those jobs to copy.

Thanks to both of you for your answers.

F@b