Method and apparatus for network file recovery
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United States of America Patent
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Jan 14, 1997
Grant Date -
N/A
app pub date -
Jun 26, 1995
filing date -
Jun 26, 1995
priority date (Note) -
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Abstract
A method and apparatus for assisting in file recovery after a network fault uses a block state indicator in a client cache. After file data is stored in the client cache, the block state indicator is set to a client-cached state. After the file data is stored in a server cache, the block state indicator is set to a server-cached state. After the file data is stored in a non-volatile store attached to the server, the block state indicator is set to a stored state. If the data in server cache is lost or compromised due to a network fault, the data maintained in client memory is retransmitted. In a similar manner, file locks and file semaphores are re-established after a network fault.
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