Resource protection in a cluster environment
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United States of America Patent
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-
Jan 1, 2002
Grant Date -
N/A
app pub date -
Dec 23, 1998
filing date -
Dec 23, 1998
priority date (Note) -
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status (Latency Note)
Importance
Abstract
A method of protecting volumes of a mass storage device shared by a server cluster includes the step of transferring from (i) a first file system of a first server of the server cluster to (ii) a first filter driver of the first server, a write request packet directed to a first volume of the mass storage device. Another step of the method includes determining at the first filter driver whether the first server has ownership of the first volume. Yet another step of the method includes transferring the write request packet from the first filter driver to a lower level driver for the mass storage device only if the determining step determines that the first server has ownership of the first volume. Apparatus for carrying out the method are also disclosed.
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