| 摘要 |
PURPOSE:To improve system performance and to eliminate the logical unmatching of shared data by defining a shared storage address area in a load decentralized system in a rough coupling state, and regarding this as a buffer storage which is not controlled. CONSTITUTION:An actual storage space is divided into a shared storage space 12 and storage spaces 10 and 11 belonging to respective systems, and when a request for access to addresses of the shared storage space 12 of 24-32 megabytes is sent out, buffer storage devices 3a and 3b are regardes as controlled systems. Then, data A in reading or data B in writing by-passes the buffer storages to perform data transfer directly with the shared storage device 120. |
