Improved computer-based system comprising several nodes in a...

H - Electricity – 04 – L

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H04L 29/06 (2006.01) G06F 12/08 (2006.01) G06F 17/30 (2006.01)

Patent

CA 2667107

A computer-based system comprises several computer-based facilities termed nodes interconnected in a network, - storing nodes comprise a direct-access local memory unit (38), and a storage server (46) for managing access to this unit on the basis of a queue, - application nodes, each comprising: * an application environment with a representation of files that are accessible in the form of addresses of blocks designating a physical address on a local memory unit (33), and * a storage client (44) capable of interacting with a storage server (46), on the basis of an access request designating a block address. A storage server (46) comprises a scheduler capable of executing the access requests contained in its queue (64) in a determined order. This order is determined as a function of a set of rules forming performance criteria, and involving one or more state parameters of the queue and/or of the storing node on which it resides.

Un système informatique comprend plusieurs postes informatiques dits noeuds interconnectés en un réseau, des nAEuds stockants comprennent une unité de mémoire locale (38) à accès direct, et un serveur de stockage (46) pour gérer l'accès à cette unité sur la base d'une file d'attente, des nAEuds applicatifs, comprennent chacun : un environnement d'application avec une représentation de fichiers accessibles sous forme d'adresses de blocs désignant une adresse physique sur une unité de mémoire locale (33), et un client de stockage (44) capable d'interagir avec un serveur de stockage (46), sur la base d'une requête d'accès désignant une adresse de blocs. Un serveur de stockage (46) comporte un ordonnanceur capable d'exécuter les requêtes d'accès contenues dans sa file d'attente (64) dans un ordre déterminé. Cet ordre est déterminé en fonction d'un jeu de règles formant critères de performance, et impliquant un ou plusieurs paramètres d'état de la file d'attente et/ou du nAEud stockant sur lequel il réside.

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