Note: Please ensure that the destination will have the space needed to start a new backup set.
Step 1: Remove Existing Backup Set
Steps on removing backup files from configuration can be found here:
Note: If the Backup Set that is being removed is for a Backup Copy job, make sure to Disable the Backup Copy job first. If this is not done, the "Remove from configuration" option will be greyed out and unavailable.
Step 2: Run the Job
Run the job, a new backup set will be started.