A method and system for maintaining a global name space

Details A method and system for maintaining a global name space A method and system for maintaining a global name space

G - Physics

06

F

G06F 17/30 (2006.01)

Patent

CA 2241438

A global mount mechanism capable of maintaining a consistent global name space in a distributed computing system including a plurality of nodes interconnected by a communications link is herein disclosed. The global mount mechanism mounts a newfile system resource into the global name space in a coherent manner such that the new file system resource is mounted at the same mount point concurrently in eachnode. The global mount mechanism accommodates mount or unmount requests initiated from a requesting node for a resource located in a remote node. The global mount mechanism is also used to unmount a file system resource from the global name space. The global mount mechanism also includes an initialization procedurethat is used to generate the global name space initially by providing each local mount point with a global locking capability.

L'invention est un mécanisme qui peut tenir à jour de façon cohérente un espace de noms mondial dans un système informatique réparti comportant une pluralité de noeuds interconnectés par une liaison de communication. Ce mécanisme installe une nouvelle ressource archivée dans l'espace de noms mondial de façon cohérente, cette nouvelle ressource étant simultanément montée au même point dans chaque noeud. Il peut répondre à des demandes d'installation ou de désinstallation faites par un noeud en rapport avec une ressource se trouvant à un noeud éloigné. Le mécanisme de l'invention est également utilisé pour extraire une ressource archivée de l'espace de noms mondial. Il comporte de plus une procédure d'initialisation qui sert à engendrer l'espace de noms mondial initialement en fournissant un moyen de branchement mondial à chaque point d'installation.

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