DEVICE AND METHOD FOR ELIMINATING FILE DUPLICATION IN A DISTRIBUTED STORAGE SYSTEM
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United States of America Patent
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Issued Date -
Jul 26, 2012
app pub date -
Nov 4, 2010
filing date -
Nov 23, 2009
priority date (Note) -
Abandoned
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Abstract
The present invention relates to an apparatus and method for eliminating duplication of a file in a distributed storage system. The apparatus and method for eliminating duplication of a file in a distributed storage system according to the present invention calculates a hash value of each chunk for an active file; calculates a secondary hash value by adding the hash values calculated for respective chunks; examines duplication of the file using the hash value of each chunk and the secondary hash value; and eliminates a duplicated file depending on a result of the examination.
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