| 摘要 |
PURPOSE:To attain the low cost of a system, and to improve a reliability by providing the monitoring device of a shared memory fed voltage at each interface device in a shared memory subsystem. CONSTITUTION:When an alternative current 100V is supplied to a shared memory subsystem, 2, whether or not the power feeding to a memory element is normally operated, that is, the destruction/non-destruction of the content of the shared memory, is inspected by incorporated monitoring devices 71-7n, and the result is stored in interface devices 31-3n. And also, the destruction/non- destruction of the content of the shared memory is inspected by the shared memory device 4, and when the content of the shared memory is destroyed, a control circuit 42 of the shared memory device initializes the content of the shared memory after the output voltage of a power source device B 61 is turned to a normal value. After wards, the incorporated monitoring devices 71-7n continues to monitor the output of the power source device B 61, and when they detect that the output voltage of the power source device B 61 is beyond the range of a normal value, the interface devices 31-3n continue to store the result until the interface devices 31-3n are initialized. |
