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Quantum Assigned Patent

Combined asynchronous and synchronous fountain code storage in object store
By Francis Pelletier on 2017.11.13

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Quantum Corporation, San Jose, CA, has been assigned a patent (9,798,617) developed by Reinart, John, Roseville, MN, for a "combined asynchronous and synchronous fountain code storage in an object store."

The abstract of the patent published by the U.S. Patent and Trademark Office states: "Example apparatus and methods produce a set of rateless erasure codes, (e.g., fountain codes) for a file stored in a primary data store, (e.g., hard drive) or in an archive system. The archive system may store the file in a redundant array of independent disks, (RAID). A first subset of the rateless erasure codes are stored in an object storage using a synchronous protocol. A second subset of rateless erasure codes are stored in the object storage using an asynchronous protocol. The object storage system may inform the archive system when desired redundancy has been achieved or when desired redundancy has been lost. The archive system may buffer rateless erasure codes before providing the codes to the object storage to improve performance. A failure in the archive system or object storage system may be mitigated by retaining the file in the primary data store until the desired redundancy is achieved.

The patent application was filed on April 4, 2016 (15/089,968).

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