Fault tolerant nfs server system and mirroring protocol

G - Physics – 06 – F

Patent

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Details

G06F 11/00 (2006.01) G06F 9/46 (2006.01) G06F 11/14 (2006.01) G06F 11/20 (2006.01) G06F 17/30 (2006.01) G06F 17/40 (2006.01) G11C 29/00 (2006.01) H04L 29/06 (2006.01)

Patent

CA 2211654

A network computer system providing for the fault tolerant storage and retrieval of data files includes a client system connected to a data communication network that may source a first data transfer request to said data communication network for the transfer or retrieval of data. A first server system, including first medium for storing data files, is connected to the data communication network so as to be responsive to first data transfer requests. A second server system, including second medium for storing data files is also connected to said data communication network to also be responsive to first data transfer requests. A control protocol, established between the first and second server systems, coordinates an asymmetric response by the first and second server systems to a first data transfer request, such that file data transferred by the client with the first data transfer request is replicated to the first and second storing mediums and such that file data transferred to the client system in response to the first data transfer is non-replicatively provided to the client system by either the first or second server system.

L'invention concerne un système informatique de réseau permettant une mémorisation et un extraction insensibles aux défaillances de fichiers de données. Ledit système comprend un système client (26) connecté à un réseau de communication de données susceptible d'envoyer une première demande de transfert de données audit réseau de communication de données pour le transfert ou l'extraction de données. Un premier (12) et un second (14) système serveur comprenant des supports de mémorisation de fichiers de données sont connectés au réseau de communication de données. Un protocole de gestion établi entre le premier et le second système serveur coordonne une réponse asymétrique des premier et second serveurs par rapport à une première demande de transfert de données de sorte que les données de fichier transférées par le client soient reproduites dans les premier et second supports d'information et que les données de fichier transférées au système client soient fournies sans reproduction au système client par le premier ou le second système serveur.

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