Qumulo Assigned Three Patents

Managing usable storage space in distributed file systems
Qumulo, Inc., Seattle, WA, has been assigned a patent (11,354,273) developed by O’Neill, Kevin Ross, Bai, Yuxi, Seattle, WA, Magidson, Tali, Carnation, WA, Bunge, Philip Michael, and Boden, Carson William, Seattle, WA, for “managing usable storage space in distributed file systems.“

The abstract of the patent published by the U.S. Patent and Trademark Office states: “Embodiments are directed to managing data in a file system. The file system that includes storage nodes that may be associated with storage volumes that may have a different capacity for storing data. A storage capacity of the file system may be determined based on a number of stripes of data that fit in the file system such that each stripe may be comprised of chunks that have a same chunk storage capacity. Slots in the file system that each match the chunk storage capacity may be determined based on the storage volumes. The chunks may be assigned to the slots in the file system based on the capacity of the storage nodes such that a number of chunks allocated to a same storage volume or a same storage node may be based on protection factor information.”

The patent application was filed on November 18, 2021 (17/530,420).

File system cache tiers
Qumulo, Inc., Seattle, WA, has been assigned a patent (11,347,699) developed by Carpenter, Edward, Rothschilds, Thomas Gregory, Godman, Peter J., Fairbanks, Duncan Robert, Jakubowski, Patrick, and Wang, Zexuan, Seattle, WA, for a “file system cache tiers.“

The abstract of the patent published by the U.S. Patent and Trademark Office states: “Embodiments are directed to a file system engine that provides a file system that includes a plurality of blocks on a file storage tier with portion of the blocks associated with a cache storage tier. A cache engine provides heat extents that include a heat score and a run length value such that the heat extents are represent activities associated with the blocks. Heat extents associated with file system activities are determined based on a position of the blocks that corresponds with the run length values of the heat extents and sectors on the file storage tier. Heat scores associated with the heat extents may be modified based on the activities and distribution models to conform the heat extents with the distribution models. Blocks associated with heat scores that are less than a threshold value provided by the distribution models may be disassociated from the cache storage tier.”

The patent application was filed on January 13, 2020 (16/741,567).

Managing throughput fairness and quality of service in file systems
Qumulo, Inc., Seattle, WA, has been assigned a patent (11,294,718) developed by Bai, Yuxi, Rothschilds, Thomas Gregory, MacLaren, Jonathan Michael, Nelson, Noah Trent, and Fairhurst, Kimberly Alice, Seattle, WA, for “managing throughput fairness and quality of service in file systems.“

The abstract of the patent published by the U.S. Patent and Trademark Office states: “Embodiments are directed to managing file systems over a network. Jobs may be provided to a storage computer in a file system. Control models may be associated with the jobs. Scores may be generated based on the control models. Each job may be associated with a score provided by its associated control model. And, each job that may be behind its corresponding schedule may be associated with a higher score value than each other job that may be either on its corresponding other schedule or ahead of its corresponding other schedule. Commands may be selected for execution based on the commands being associated with a job that may be associated with the higher score value that may be greater than score values associated with other jobs. The jobs may be ranked based on the updated scores. Subsequent commands may be selected and executed based on the ranking of the jobs.”

The patent application was filed on December 7, 2020 (17/114,384).