Patents by Inventor Scott Chao

Scott Chao has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Optimizing garbage collection across heterogeneous flash devices
    Patent number: 11397674
    Abstract: A storage system with garbage collection prioritizes data segments for garbage collection in the storage memory. Priority of each data segment relates to amount of processing device work for garbage collection of the data segment versus benefit relating to amount of dead data to be reclaimed by garbage collection of the data segment. Garbage collection is performed according to the priority of each data segment.
    Type: Grant
    Filed: April 3, 2019
    Date of Patent: July 26, 2022
    Assignee: Pure Storage, Inc.
    Inventors: Yanwei Jiang, Naveen Neelakantam, Benjamin Scholbrock, Scott Chao, Matthew Paul Fay, Brandon Davis
  • Garbage collection tuning for low drive wear
    Patent number: 11281577
    Abstract: A storage system determines a present amount of reclaimable space in storage memory. The storage system determines a garbage collection directive based on the present amount of reclaimable space in comparison to a target amount of reclaimable space. The storage system selects blocks of storage memory for a group of blocks for garbage collection. Each block selected has greater than or equal to a threshold amount of reclaimable space in accordance with the garbage collection directive. The storage system performs garbage collection, using blocks from the group.
    Type: Grant
    Filed: June 19, 2018
    Date of Patent: March 22, 2022
    Assignee: Pure Storage, Inc.
    Inventors: Aswin Karumbunathan, Yanwei Jiang, Naveen Neelakantam, Scott Chao, Bo Feng, Kiron Vijayasankar