Quantum Assigned Two Patents

High-precision servo system for advanced magnetic tape storage
Quantum Corporation, San Jose, CA, has been assigned a patent (11605399) developed by Peng, James P., Santa Maria, CA, Goker, Turguy, Oceanside, CA, and Saliba, George, Boulder, CO, for a “high-precision servo system for advanced magnetic tape storage system.”

The abstract of the patent published by the U.S. Patent and Trademark Office states: “A servo system for a magnetic tape storage system includes a magnetic tape (550) including a first servo band (573), and a first data band (575). An auxiliary servo pattern (575A) is embedded within the first data band (575). The auxiliary servo pattern (575A) is modified to generate an updated auxiliary servo pattern (688A) during a writing pass as data is being written to the first data band (575). The servo system can further include a magnetic tape drive (326) including a head assembly (456) having (i) a first write head (482) that writes data to the magnetic tape (550) as the magnetic tape (550) moves relative to the head assembly (456) in a first tape direction, (ii) a second write head (484) that writes data to the magnetic tape (550) as the magnetic tape (550) moves relative to the head assembly (456) in a second, opposite tape direction, and (iii) an auxiliary servo reader (487) positioned in a shadow of one of the first write head (482) and the second write head (484).”

The patent application was filed on 2022-02-28 (17/683099).

Distributed erasure encoding in shared file system
Quantum Corporation, San Jose, CA, has been assigned a patent (11604697) developed by Jarvis, Ben, Mendota Heights, MN, for a “distributed erasure encoding in shared file system.”

The abstract of the patent published by the U.S. Patent and Trademark Office states: “a shared file system. In one example, a method is provided to be performed by an initiator device configured to read and write data in files stored in a plurality of storage nodes that are controlled by a file management system. The method includes generating a stripe by identifying data to be stored in a storage system, dividing the data into K data segments, and performing an erasure encoding operation on the K data segments to generate a parity segment, wherein the stripe includes the K data segments and the parity segment. The method includes requesting, from the file management system, respective memory allocations in the storage devices for storing respective segments of the stripe, and transmitting, to each of the plurality of storage nodes, a respective instruction to store a respective data or parity segment in the memory allocation on the respective storage device.”

The patent application was filed on 2020-03-26 (16/830516).