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. 20, 2016
Filed:
Dec. 19, 2013
Springpath, Inc., Sunnyvale, CA (US);
Sandip Agarwala, Cupertino, CA (US);
Shravan Gaonkar, Gainsville, FL (US);
Mallikarjunan Mahalingam, Cupertino, CA (US);
Smit Shah, Sunnyvale, CA (US);
Faraz Shaikh, Sunnyvale, CA (US);
Praveen Vegulla, Cupertino, CA (US);
Krishna Yadappanavar, Sunnyvale, CA (US);
Springpath, Inc., Sunnyvale, CA (US);
Abstract
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.