Exagrid Assigned Three Patents

Scalable grid deduplication
Exagrid Systems, Inc., Marlborough, MA, has been assigned a patent (11,163,727) developed by Hansen, Thomas G., Bellingham, MA, Martinelli, Daniel P., Hopkinton, MA, Makosky, Lucas H., Harvard, MA, Hecker, Mark B., Northborough, MA, Smith, Stephen A., Bedford, NH, VanderSpek, Adrian T., Worcester, MA, and Therrien, David G., Nashua, NH, for a “scalable grid deduplication.“

The abstract of the patent published by the U.S. Patent and Trademark Office states: “A system, a method, and a computer program product for performing deduplication of data using a scalable deduplication grid are disclosed. A listing of a plurality of zone stamps is generated, where each zone stamp represents a zone in the plurality of zones in a data stream. The listing contains a logical arrangement of the plurality of zone stamps obtained from each storage location and being accessible by a plurality of servers. A first zone stamp in the listing is compared to a second zone stamp in the listing. The first and second zones are delta-compressed based on a determination that the first zone stamp is substantially similar to the second zone stamp. A server is selected to perform the comparison and delta-compression.”

The patent application was filed on May 14, 2019 (16/412,155).

Adaptive bandwidth management of replication process
Exagrid Systems, Inc., Marlborough, MA, has been assigned a patent (11,150,997) developed by Welinitz, James, Framingham, MA, Turner, Nathaniel W., Providence, RI, Kirk, Matthew B., Needham, MA, and Packard, Charles, Marlborough, MA, for an “adaptive bandwidth management of a replication process.“

The abstract of the patent published by the U.S. Patent and Trademark Office states: “A system, a method, and a computer program product for adaptively management bandwidth of a deduplication system are disclosed. A bandwidth policy for replication of data from a first deduplication location to a second deduplication location is determined. The bandwidth policy allocates a predetermined bandwidth for the replication of data. The deduplication locations are communicatively coupled via a network. Using the determined bandwidth policy, data from the first deduplication location is replicated to the second deduplication location based on the allocated bandwidth.”

The patent application was filed on August 19, 2015 (14/829,885).

Delta compression
Exagrid Systems, Inc., Marlborough, MA, has been assigned a patent (11,126,594) developed by VanderSpek, Adrian T., Worcester, MA, and Tague, Steven Allan, Tyngsboro, MA, for a “delta compression.“

The abstract of the patent published by the U.S. Patent and Trademark Office states: “Delta compression method, system and computer program product. Portions of source and target data files are hashed using a hashing function. A target data file is compared against the source data file to determine at least one delta difference between the files. A source data file hashing table is generated. The table includes hashed portions of the source and target data files stored in corresponding source file offset locations and corresponding target file offset locations, respectively. Portions of the source and target files are compared using corresponding source and target file offset locations. At least one common sequence of characters in the portions of the source and target files is determined based on the comparison. A patch file is generated based on the determined sequence of characters.”

The patent application was filed on February 9, 2018 (15/893,163).