CONTROL MONITORING SYSTEM AND CONTROL MONITORING METHOD

PROBLEM TO BE SOLVED: To solve the problem in which a computer is not always sound, so that, when a sudden accident such as stop or restart occurs due to a hardware failure, administrative information such as using address is eliminated, and a mismatch in the administrative information occurs between the computers using a common memory.SOLUTION: The control monitoring system includes: a first computer for issuing a request; a second computer for receiving the request; a communication channel for performing a communication between the first computer and second computer; and a common memory in which the first computer and second computer share information. The control monitoring system delivers, from the second computer to the first computer via the common memory, data from the second computer requested by the first computer via the communication channel.SELECTED DRAWING: Figure 1 【課題】計算機が常に健全であるとは限らず、ハードウェア障害による停止・再起動などの突発的な事態が発生すると、使用中アドレスなどの管理情報がクリアされ、共有メモリを使用している計算機どうしで管理情報に不整合が発生する課題が生じる。【解決手段】要求を発行する第一計算機と、前記要求を受け付ける第二計算機と、前記第一計算機と前記第二計算機の通信を行う通信路と、前記第一計算機と前記第二計算機が情報を共有する共有メモリとを備え、前記通信路を経由し、前記第一計算機が前記第二計算機に要求したデータが、前記共有メモリを経由して前記第二計算機から前記第一計算機にデータを受け渡す制御監視システム。【選択図】 図１