A plurality of data mover computers control access to respective file systems in data storage. A network client serviced by any of the data movers can access each of the file systems. If a data mover receives a client request for access to a file in a file system to which access is controlled by another...http://www.google.ca/patents/US6324581?utm_source=gb-gplus-sharePatent US6324581 - File server system using file system storage, data movers, and an exchange of meta data among data movers for file locking and direct access to shared file systems
