Methods and apparatus for load balancing storage nodes in a distributed network attached storage system
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United States of America Patent
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Mar 24, 2009
Grant Date -
Apr 22, 2004
app pub date -
Feb 13, 2003
filing date -
Oct 17, 2002
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A distributed data storage system stores a single image file system across a plurality of physical storage volumes. The physical storage may be direct attached storage, or may be coupled through a storage area network (“SAN”). One or more clients communicate with a plurality of storage nodes through a network. A client of the distributed data storage system transmits a request over the network for a file identified in the file system. A load-balancing switch selects one of the storage nodes to process the request. The storage node accesses at least one of the physical volumes and transmits a response for the storage operation to the client.
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