Springpath Assigned Patent

Springpath, Inc., Sunnyvale, CA, has been assigned a patent (9,448,927) developed by Agarwala, Sandip, Cupertino, CA, Gaonkar, Shravan, Gainsville, FL, Mahalingam, Mallikarjunan, Cupertino, CA, Shah, Smit, Shaikh, Faraz, Sunnyvale, CA, Vegulla, Praveen, Cupertino, CA, and Yadappanavar, Krishna, Sunnyvale, CA, for a “system and methods for removing obsolete data in a distributed system of hybrid storage and compute nodes.“

The abstract of the patent published by the U.S. Patent and Trademark Office states: “A distributed garbage collection in a distributed storage system is described, where the storage controller functions of the distributed storage system are separated from that of distributed storage system storage media. In an exemplary embodiment, a storage controller server generates a live object map of live objects stored on the distributed storage system in a plurality of block segments distributed across a plurality of storage controller servers. The storage controller server further scans the plurality of block segments to generate segment summary statistics, where the segment summary statistics indicates the number of live objects stored in the plurality of block segments. In addition, the storage controller server compacts each of the plurality of block segments that have a low utilization based on the segment summary statistics. Furthermore, the live object map is a probabilistic data structure storing a list of valid objects.“

The patent application was filed on December 19, 2013 (14/135,499).