A data storage system wherein a data controlling director examines the contents of the tag to determine whether requested read data exists in a local cache memory having this data controlling director or in some other local memory cache, or in a disk drive coupled to this data controlling director; and...http://www.google.fr/patents/US7231492?utm_source=gb-gplus-shareBrevet US7231492 - Data transfer method wherein a sequence of messages update tag structures during a read data transfer
Data transfer method wherein a sequence of messages update tag structures ...