Reference Website: hyper backup rotation https://community.spiceworks.com/how_to/155690-using-hyper-backup-to-backup-to-local-drive-with-rotation-synology-nas https://www.synology.com/en-global/knowledgebase/DSM/tutorial/Backup/What_can_I_do_if_I_am_informed_of_insufficient_quota_of_backup_destination_when_using_hyper_backup