System using a single host to receive and redirect all file access commands for shared data storage device from other hosts on a network
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United States of America Patent
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Nov 25, 2008
Grant Date -
N/A
app pub date -
Sep 27, 2004
filing date -
Sep 26, 2003
priority date (Note) -
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status (Latency Note)
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Abstract
Access by multiple hosts, such as computers, to a data storage device by way of a network while maintaining data integrity. In one embodiment, a method for accessing the storage device includes acquiring a resource 'lock' that provides exclusive access to one of the hosts at a time. In another embodiment, the file systems of a first and second host provide file system attributes stored in a storage device to provide mutually exclusive access for each host to free blocks of the device. In another embodiment, a networked system contains a first host having exclusive direct access to a storage device over a digital network. A second host requiring access to the storage device communicates with the first host by way of the digital network. File access requests generated by the second host are transferred by a redirection filter driver within the second host to the first host.
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