FIELD: information technology.
SUBSTANCE: present invention relates to a method and system of date storage in the event of network failures and server failovers. Persistent handles are requested by a client after a session has been established with a file server. Request for the persistent handle includes a handle identifier generated by the client. Server uses the handle identifier to associate with state information. When there is a network failure or a server failover, and a reconnection to the client, the handle identifier is used to identify replayed requests that if replayed would create an inconsistent state on the server. Replayed requests are then appropriately handled.
EFFECT: to encourage high accessibility of data storage service as achieved through backing up information stored on the cluster.
10 cl, 5 dwg
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