Is a
Patent attributes
Current Assignee
Patent Jurisdiction
Patent Number
Patent Inventor Names
Sudipta Sengupta0
Biplob Debnath0
Jin Li0
Paul Adrian Oltean0
Ronakkumar N. Desai0
Date of Patent
January 13, 2015
Patent Application Number
12979669
Date Filed
December 28, 2010
Patent Citations Received
Patent Primary Examiner
Patent abstract
The subject disclosure is directed towards a data deduplication technology in which a hash index service's index maintains a hash index in a secondary storage device such as a hard drive, along with a compact index table and look-ahead cache in RAM that operate to reduce the I/O to access the secondary storage device during deduplication operations. Also described is a session cache for maintaining data during a deduplication session, and encoding of a read-only compact index table for efficiency.
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