A method and system are disclosed for transferring backup copies of designated multi-track datasets which are stored in a plurality of storage subsystems to a host system via data channel during concurrent execution of an application. Upon receiving a request for a backup copy, execution of an application...http://www.google.de/patents/US5497483?utm_source=gb-gplus-sharePatent US5497483 - Method and system for track transfer control during concurrent copy operations in a data processing storage subsystem