Patent ID: 7519635
Filing Date: 2009-04-14
Classification: G06F,Y10S

Abstract:
1. A method of selecting an optimum deduplication chunking method, which comprises: receiving a request to deduplicate a file, said file having a file type; searching a table of file types, said table including for each file type, a chunking method, a deduplication ratio, and a user configurable deduplication ratio threshold; selecting a chunking method for said file according to said table; chunking said file using said selected chunking method; deduplicating said chunked file; calculating a deduplication ratio for said file type by dividing a sum of individual deduplication ratios achieved for files of said file type by a number of files of said file type deduplicated; updating said table with said calculated deduplication ratio for said file type; if said calculated deduplication ratio for said file type is equal to or greater than said deduplication ratio for said file type, maintaining said chunking method for said file type in the said table; if said calculated deduplication ratio for said file type is less than said deduplication ratio threshold for said file type, selecting a new chunking method for said file type; and, updating said table with said new chunking method for said file type.