Distributed network data storage system and method using cryptographic algorithms
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United States of America Patent
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Apr 19, 2011
Grant Date -
N/A
app pub date -
Aug 11, 2009
filing date -
Apr 9, 2001
priority date (Note) -
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Abstract
A system for distributed file storage includes a plurality of servers providing, to a plurality of clients, file access services for accessing files stored on the plurality of servers. A list of neighbor servers is maintained by each server. The neighbor servers are a subset of the plurality of servers. At least one server of the plurality of servers is switched into a neighbor group of servers based on network distance. Each file is stored in the form of a plurality of N pieces on N servers, the pieces being generated from the file. The list is used to obtain information for reconstructing files stored on the neighbor servers, such that any K out of the N pieces can be used to reconstruct any file.
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