In a data processing system having a primary site and a secondary site, storage systems are connected to each other via a communication line, data update history is recorded in a storage device as a journal in the primary site, and the journal is transferred to the secondary site via the communication...http://www.google.fr/patents/US20070033437?utm_source=gb-gplus-shareBrevet US20070033437 - Data processing system
Numéro de demande: 11/545,990 Numéro de publication: US 2007/0033437 A1 Date de dépôt: 10 oct. 2006 Brevet délivré: US7328373 ( Date de délivrance 5 févr. 2008)
