1. A system for performing data storage operations that transfer data from a source to a destination, the system comprising: a server coupled to two or more storage cells actively transferring data from the source to the destination, wherein the server comprises a processor, and wherein each of the two or more storage cells comprises: a secondary storage database configured to store secondary copies of data generated by a data storage operation; a media agent configured to convey data produced at a client computer in order to create a secondary copy of data during a data storage operation; a storage manager configured to control the media agent during a data storage operation, wherein the storage manager controls the media agent in accordance with a filter or rule applicable to the storage cell; and, wherein the server: generates a report related to performance of data storage operations within the two or more storage cells, performs a quantitative comparison of performances between the two or more storage cells; and determines a filter or rule, wherein the filter or rule modifies active transfer of data from the source to the destination based in part on the filter or rule.