Hi Carlos,
Ideally a script runs that creates a new directory, and updates the configuration file used by the backup to point to it, so a new backup cycle begins in that new location.
Then the old backup can be removed or set aside for a period of time before deletion.
There isn't a readily available script for this from the documentation or product.
The script would basically take steps laid out in the documentation here.
Back Up the Data Repository - CA Performance Management - 3.6 - CA Technologies Documentation
Thanks,
Mike