A data storage system adapted to maintain redundant data storage sets at a destination location(s) is disclosed. The data storage system establishes a copy set comprising a source volume and a destination volume. Data written to a source volume is automatically copied to the destination volume. The data...http://www.google.es/patents/US7149769?utm_source=gb-gplus-sharePatente US7149769 - System and method for multi-destination merge in a storage area network
System and method for multi-destination merge in a storage area network