The present disclosure relates to a method, device and computer program product for managing a backup system. In a method for managing a backup system, at least one backup attribute of a backup demand on the backup system is determined, the at least one backup attribute describing at least one aspect of a demand on the backup system from a user of the backup system. A plurality of backup records of a plurality of historical backup operations performed on the backup system are obtained, respectively. Data distribution associated with the at least one backup attribute is determined based on the plurality of backup records.