Non-disruptive recovery from file server failure in a highly available file system for clustered computing environments
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United States of America Patent
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Oct 15, 1996
Grant Date -
N/A
app pub date -
Jun 16, 1994
filing date -
Jun 16, 1994
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A system and method for non-disruptive recovery from a file server failure. State information for a file system managed by a server is maintained among a plurality of client nodes of a distributed system. When a failure of the server is detected, all ongoing requests to server are suspended. Then, the state information in each client node is transferred to an identified back-up server. Based on the state information, the file server state prior to the failure is reconstructed. After the reconstructing the file system, the suspended requests are restarted on the back-up server.
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