DATA STORAGE MANAGEMENT FOR NETWORK INTERCONNECTED PROCESSORS

摘要

The data storage system is connected to a local area network (1) and include s a storage server (50) that, on a demand basis and/or on a periodically scheduled basis, audits the activity on each volume of eac h data storage device (31-33) that is connected to the n etwork (1). Low priority data files are migrated via the network (1) and the storag e server (50) to backend data storage media (61-65), and the directory resident in the data storage device (31-33) is updated with a plac eholder entry to indicate that this data file has been m igrated to backend storage (61-65). When the processor (21-22) requests this data file, the placeholder entry enables the storage server (50) t o recall the requested data file to the data storage device (31-33) from which it ori ginated.