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:
Sep. 27, 2016
Filed:
Aug. 12, 2015
Datadirect Networks, Inc., Chatsworth, CA (US);
Jason M. Cope, Columbia, MD (US);
Paul J. Nowoczynski, Brooklyn, NY (US);
Pavan Kumar Kumar Uppu, Laurel, MD (US);
Donald J. Molaro, Cupertino, CA (US);
Michael J. Piszczek, Laurel, MD (US);
John G. Manning, Ellicott City, MD (US);
DataDirect Networks, Inc., Chatsworth, CA (US);
Abstract
Systems and methods for reducing metadata in a write-anywhere storage system are disclosed herein. The system includes a plurality of clients coupled with a plurality of storage nodes, each storage node having a plurality of primary storage devices coupled thereto. A memory management unit including cache memory is included in the client. The memory management unit serves as a cache for data produced by the clients before the data is stored in the primary storage. The cache includes an extent cache, an extent index, a commit cache and a commit index. The movement of data and metadata is by an interval tree. Methods for reducing data in the interval tree increase data storage and data retrieval performance of the system.