Method and systems for synchronization of process control...

G - Physics – 06 – F

Patent

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G06F 11/20 (2006.01)

Patent

CA 2734616

A method for synchronization of data stored in redundant servers of a process control system is described. The redundant servers include an active server and at least one standby server, in communication with a plurality of applications. The method includes generating a memory snapshot of information stored in a plurality of active server memory locations at a predetermined time. The information stored in the plurality of active server memory locations includes application operating data for the plurality of applications and the memory snapshot includes a data structure that includes a copy of the information stored in the plurality of active server memory locations. The method also includes transmitting the memory snapshot from the active server to the at least one standby server, and storing the memory snapshot at the at least one standby server.

L'invention concerne un procédé de synchronisation de données stockées dans des serveurs redondants d'un système de commande de processus. Les serveurs redondants comprennent un serveur actif et au moins un serveur en attente, en communication avec une pluralité d'applications. Le procédé comprend la génération d'une copie instantanée des informations stockées dans une pluralité d'emplacements mémoire de serveur actif à un instant prédéterminé. Les informations stockées dans la pluralité d'emplacements mémoire de serveur actif comprennent des données de fonctionnement d'application pour la pluralité d'applications, et la copie instantanée comprend une structure de données qui comprend une copie des informations stockées dans la pluralité d'emplacements mémoire de serveur actif. Le procédé comprend également la transmission de la copie instantanée du serveur actif au ou aux serveurs en attente et le stockage de la copie instantanée au niveau du ou des serveurs en attente.

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