Patent ID: 7870154
Filing Date: 2011-01-11
Classification: G06F

Abstract:
1. A method for providing and managing an integrated network attached storage (NAS) and content addressable storage (CAS) system, the method comprising: providing a storage system having a network interface, storage head, and at least one logical unit; operating a view management program to review each client request received from the network interface and determine whether the source of the request is a NAS client or a CAS client; and, providing a NAS view when the source is a NAS client and a CAS view when the source is a CAS client; maintaining an export management table having entries therein corresponding to local file system name, export name for NAS, file system ID for NAS, export name for CAS, and file system ID for CAS, and access control information; maintaining a file view management table having entries therein corresponding to local file system name, file name, NAS view pointer, NAS status, CAS view pointer, and CAS status; and upon receiving an archiving request for a designated file from a CAS client, changing corresponding entries in the view status table while maintaining the file at the same storage location.