DEVICE AND METHOD FOR SHARING FILE, DEVICE AND METHOD FOR PROCESSING FILE AND RECORDING MEDIUM STORED WITH FILE SHARING PROGRAM AND RECORDING MEDIUM STORED WITH FILE PROCESSING PROGRAM

摘要

PROBLEM TO BE SOLVED: To provide a lock system for an SAN in which file system level lock can be realized, and the occurrence of any single failure can be prevented whereas a conventional data sharing system for the SAN on the basis of a SANOS, by plural processing nodes in data storage or a storage sub-system is a volume level lock on the file system level lock via a limited server. ;SOLUTION: In this lock system for the SAN, built-in software is allowed to travel at each storage medium in the SAN or a storage sub-system side so that the storage medium or the storage sub-system can be made intelligent, and an acceptor 1 corresponding to a first protocol and an acceptor 2 corresponding to a second protocol coexist so that a lock mechanism can be operated by the acceptor 1 and data transfer can be operated by the acceptor 2. Thus, it is possible to efficiently attain data control and data transfer by using the plural protocols.;COPYRIGHT: (C)2001,JPO