Mutual monitor system for multicomputer

Abstract

Abstract PURPOSE:To considerably improve the reliability of monitoring a multicomputer system by permitting plural computers to decide fault when they detect it in the same computer. CONSTITUTION:When the system is normal, respective computers 1-3 sequentially activate health notice tasks 14 at the interval of a prescribed time. A health notice transmission means 22 transmits a health notice from the computer in which the task 14 is activated to the others. In the computer receiving the health notice, a response transmission means 25 returns a response notice. If the fault occurs in the computer 2, the computer 1 detects that the computer 2 makes no response, judges it to be the abnormality and stores the effect in a status control table 16. The computer 3 detects that the task 14 in the computer 2 is not activated, judges it to be the abnormality and informs the computer 1 of the effect. Consequently, the computer 1 decides that the computer 2 is troubled.

Inventors

• 👤 Masashi Kudo
• 👤 工藤　雅司

Bibliographic Details