DDN Assigned Patent

DataDirect Networks, Inc., Chatsworth, CA, has been assigned a patent (9,454,533) developed by Cope, Jason M., Columbia, MD, Nowoczynski, Paul J., Brooklyn, NY, Uppu, Pavan Kumar Kumar, Laurel, MD, Molaro, Donald J., Cupertino, CA, Piszczek, Michael J., Laurel, MD, and Manning, John G., Ellicott City, MD, for a “reducing metadata in a write-anywhere storage system.“

The abstract of the patent published by the U.S. Patent and Trademark Office states: “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.“

The patent application was filed on August 12, 2015 (14/824,972).