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  • Method and system for managing a spare persistent storage device and a spare node in a multi-node data cluster
    Patent number: 11301327
    Abstract: In general, the invention relates to a method for managing data. The method includes detecting a failure of a persistent storage device in a data node of a plurality of data nodes, and in response to the detecting, initiating a rebuilding of data in a spare location using proactive copy metadata and slice metadata, wherein the data is a copy of data that was stored in the persistent storage device.
    Type: Grant
    Filed: March 6, 2020
    Date of Patent: April 12, 2022
    Assignee: Dell Products L.P.
    Inventors: Dharmesh M. Patel, Rizwan Ali, Ravikanth Chaganti
  • Method and system for performing a checkpoint zone operation for a spare persistent storage
    Patent number: 11281535
    Abstract: In general, the invention relates to a method for managing data. The method includes detecting a persistent storage device failure in a persistent storage device of a plurality of persistent storage devices, and in response to the detecting, initiating a rebuilding of data in a spare persistent storage device using checkpoint metadata and slice metadata, wherein the data is a copy of data that was stored in the persistent storage device and wherein the spare persistent storage device is not one of the plurality of persistent storage device.
    Type: Grant
    Filed: March 6, 2020
    Date of Patent: March 22, 2022
    Assignee: Dell Products L.P.
    Inventors: Dharmesh M. Patel, Rizwan Ali, Ravikanth Chaganti