Patent ID: 7783608

Claim:
A method for managing files stored in a storage system, wherein the storage system includes a content addressable storage (CAS) system and CAS client and network attached storage (NAS) system and NAS client, comprising: a. providing global name space facility in the NAS system; b. providing an archiving application in the CAS client; c. providing CAS interface facility in the NAS system; d. operating the archiving application to monitor a policy management facility and, when a management event is flagged by the policy management facility, sending a file management request of a target file from the archiving application to the CAS interface; e. operating the CAS interface to receive file management requests from the archiving application, interpret the requests, and in response invoke a migration module; and, f. operating the migration module to execute the file management request on the target file via the NAS system to thereby provide a GNS path to the target file; wherein the file management request comprises a file archiving of the target file, and the method further comprises operating the NAS system to store an archive copy of the target file from an original NAS storage location to a target archive location on the CAS system via the GNS facility, and storing in a metadata table a GNS path to the target location.