Quantum Assigned Three Patents

Specially formatted tape drive for enabling improved performance capabilities in multi-partition magnetic tape
Quantum Corporation, San Jose, CA, has been assigned a patent (11,222,659) developed by Goker, Turguy, Oceanside, CA, for a “specially formatted tape drive for enabling improved performance capabilities in multi-partition magnetic tape.“

The abstract of the patent published by the U.S. Patent and Trademark Office states: “A magnetic tape drive for writing data to a magnetic tape that includes a first data band, a second data band, and a servo band that is positioned between the first data band and the second data band, each of the data bands including a plurality of wraps including a first wrap and a last wrap, includes a drive controller and a tape head. The drive controller defines at least a first partition and a second partition within the magnetic tape. The tape head is configured to write data to the first partition of the magnetic tape and subsequently write data to the second partition of the magnetic tape. The drive controller defines an end of the first partition to be directly after the last wrap of the first data band. The drive controller controls the tape head to write data to all of the plurality of wraps of the first data band.”

The patent application was filed on February 8, 2021 (17/170,646).

Erasure coding magnetic tapes for minimum latency and adaptive parity protection feedback
Quantum Corporation, San Jose, CA, has been assigned a patent (11,216,196) developed by Goker, Turguy, Arslan, Suayb, Irvine, CA, Le, Hoa, Peng, James, and Prigge, Carsten, San Jose, CA, for an “erasure coding magnetic tapes for minimum latency and adaptive parity protection feedback.“

The abstract of the patent published by the U.S. Patent and Trademark Office states: “A magnetic tape device or system can store erasure encoded data that generates a multi-dimensional erasure code corresponding to an erasure encoded object comprising a code-word (CW). The multi-dimensional erasure code enables using a single magnetic tape in response to a random object/file request, and correct for an error within the single magnetic tape without using other tapes. Encoding logic can further utilize other magnetic tapes to generate additional parity tapes that recover data from an error of the single magnetic tape in response to the error satisfying a threshold severity for a reconstruction of the erasure coded object or chunk(s) of the CW. The encoding logic can be controlled, at least in part, by one or more iterative coding processes between multiple erasure code dimensions that are orthogonal to one another.”

The patent application was filed on May 24, 2019 (16/421,685).

Cloud-based SSD with dynamically variable error correcting code
Quantum Corporation, San Jose, CA, has been assigned a patent (11,218,175) developed by Saliba, George, Boulder, CO, for a “cloud-based solid state device (SSD) with dynamically variable error correcting code (ECC) system.“

The abstract of the patent published by the U.S. Patent and Trademark Office states: “Example apparatus and methods control an error correcting code (ECC) approach for data stored on a solid state device, SSD). The control may be based on a property (e.g., reliability, error state, speed) of an SSD, or on an attribute of the data to be stored. Approaches including a hybrid rateless Reed-Solomon ECC approach or a fountain code ECC approach may be selected. Example apparatus and methods may store padded portions of an ECC at different locations in an SSD. Example apparatus and methods may dynamically generate performance test data about the SSD, and dynamically control the ECC approach based on the performance test data. Different types or numbers of ECC may be produced, stored, and provided for different data sets stored at different SSDs or at different physical locations within an SSD. The SSD may be local, or may be part of a cloud-based storage system.”

The patent application was filed on August 23, 2019 (16/549,433).