Verfahren zum Betreiben eines Zweitrechners, Vermittlungseinrichtungen für den ausfallsicheren Betrieb und zugehöriges Programm

摘要

The invention relates among other things to a method for operating a secondary computer (22), according to which, a first data volume (112) and a second data volume (114) are first saved to a memory unit of an original computer (12). During the transmission of copies of the data volumes (112, 114), change messages (150, 154) are processed in the original computer (12) and the secondary computer (22) according to whether the corresponding data volume has already been transmitted.