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:
Apr. 14, 2020
Filed:
Dec. 04, 2017
Tintri BY Ddn, Inc., Santa Clara, CA (US);
Abhay Kumar Jain, Cupertino, CA (US);
Zubin D. Dittia, San Mateo, CA (US);
Shobhit Dayal, San Francisco, CA (US);
Tintri by DDN, Inc., Santa Clara, CA (US);
Abstract
Efficient recovery of deduplication data for high capacity systems is disclosed, including: reading from the data storage device a data structure that tracks a plurality of segments to which a plurality of persistent objects have been recently written, wherein segments are written to in a monotonically increasing numerical order; selecting a checkpoint segment from among the plurality of segments based at least in part on a plurality of segment numbers corresponding to respective ones of the plurality of segments; using the checkpoint segment and a segment associated with a latest available segment number to determine a set of candidate segments; reading at least a portion of the set of candidate segments to identify a data storage block for which a corresponding deduplication data entry is not already stored in persistently stored deduplication data entries; and storing a new deduplication data entry to insert a fingerprint associated with the data storage block in a current data structure stored in a memory.