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Robin Systems Assigned Patent

Creating snapshots of storage volume in distributed storage

Robin Systems, Inc., San Jose, CA, a Rakuten Symphony Company, has been assigned a patent (11947489) developed by Venkatesan, Dhanashankar, Seetala, Partha Sarathi, and Singh, Gurmeet, San Jose, CA, for creating snapshots of a storage volume in a distributed storage system.

The abstract of the patent published by the U.S. Patent and Trademark Office states: “A new snapshot of a storage volume is created by instructing computing nodes to suppress write requests. Once pending write requests from the computing nodes are completed, storage nodes create a new snapshot for the storage volume by allocating a new segment to the new snapshot and finalizes and performs garbage collection with respect to segments allocated to the previous snapshot. Subsequent write requests to the storage volume are then performed on the segments allocated to the new snapshot. A segment maps segments to a particular snapshot and metadata stored in the segment indicates storage volume addresses of data written to the segment. The snapshots may be represented by a storage manager in a hierarchy that identifies an ordering of snapshots and branches to clone snapshots.

The patent application was filed on 2017-09-05 (15/695886).