| 摘要 |
PURPOSE:To provide a shared storage device which supplies the same information to plural information processors connected to plural input/output parts at the same time and maintains the consistency of write data from different information processors connected to the input/ output parts. CONSTITUTION:The shared storage device 10 is connected to an external information processor 21 by an address data line 25 through an input/output part 11, and the external information processor 21 is connected to a storage part 14 for control. Similarly, the information processor is connected to an input/ output part 12, the address data line 25, and an external information processor 22, which is connected to a storage part 16 for control. The shared storage device consists of a storage part 13, the storage part 14 for control, the storage part 16 for control, a control part 15, the input/output part 11, and the input/ output part 12, the storage part 13 has data 17, data 18, and a free area 19, and the storage part 14 for control and storage part 16 for control are connected to the control part 15. The control part 15 can access the storage part 13 and input/output parts through the address data line 25 and can also access the respective storage parts for control. |
