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:
Jan. 13, 2015
Filed:
Dec. 28, 2010
Sudipta Sengupta, Redmond, WA (US);
Biplob Debnath, Minneapolis, MN (US);
Jin LI, Bellevue, WA (US);
Ronakkumar N. Desai, Redmond, WA (US);
Paul Adrian Oltean, Redmond, WA (US);
Sudipta Sengupta, Redmond, WA (US);
Biplob Debnath, Minneapolis, MN (US);
Jin Li, Bellevue, WA (US);
Ronakkumar N. Desai, Redmond, WA (US);
Paul Adrian Oltean, Redmond, WA (US);
Microsoft Corporation, Redmond, WA (US);
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.