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:
Dec. 02, 2014
Filed:
Dec. 15, 2010
Praveen Killamsetti, Sunnyvale, CA (US);
Subramaniam V. Periyagaram, Sunnyvale, CA (US);
Satbir Singh, Bangalore, IN;
Bipul Raj, Sunnyvale, CA (US);
Praveen Killamsetti, Sunnyvale, CA (US);
Subramaniam V. Periyagaram, Sunnyvale, CA (US);
Satbir Singh, Bangalore, IN;
Bipul Raj, Sunnyvale, CA (US);
NetApp Inc., Sunnyvale, CA (US);
Abstract
A storage server is coupled to a storage device that stores data blocks, and generates a fingerprint for each data block stored on the storage device. The storage server creates a master datastore and a plurality of datastore segments. The master datastore comprises an entry for each data block that is written to the storage device and a datastore segment comprises an entry for a new data block or a modified data block that is subsequently written to the storage device. The storage server merges the entries in the datastore segments with the entries in the master datastore in memory to free duplicate data blocks in the storage device. The storage server overwrites the master datastore with the entries in the plurality of datastore segments and the entries in the master datastore to create an updated master datastore in response to detecting that the number of datastore segments meets a threshold.