The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 13, 2019
Filed:
Nov. 04, 2014
Falconstor, Inc., Melville, NY (US);
Chin L. Kuo, Douglaston, NY (US);
FALCONSTOR, INC., Melville, NY (US);
Abstract
Systems and methods of data deduplication are disclosed comprising generating a hash value of a data block and comparing the hash value to a table in a first memory that correlates ranges of hash values with buckets of hash values in a second memory different from the first memory. A bucket is identified based on the comparison and the bucket is searched to locate the hash value. If the hash value is not found in the bucket, the hash value is stored in the bucket and the data block is stored in a third memory. The first memory may be volatile memory and the second memory may be non-volatile random access memory, such as an SSD. Rebalancing of buckets and the table, and use of additional metadata to determine where data blocks should be stored, are also disclosed.