2022-06-012022-06-012022-05-03Yu, Si, Gong, Junhui, Varman, Peter and Peng, Yuhan, "Method for assuring quality of service in distributed storage system, control node, and system." Patent US11320998B2. issued 2022-05-03. Retrieved from <a href="https://hdl.handle.net/1911/112433">https://hdl.handle.net/1911/112433</a>.https://hdl.handle.net/1911/112433The present disclosure discloses a method for assuring quality of service in a storage system, where a control node calculates, based on a quantity of remaining I/O requests of a target storage node in a unit time, a quantity of I/O requests required by a storage resource to reach a lower assurance limit in the unit time, and a quantity of I/O requests need to be processed by the target storage node for the storage resource in the unit time, a lower limit quantity of I/O requests that can be processed by the target storage node for the storage resource in the unit time; allocates, based on the lower limit quantity of I/O requests, a lower limit quantity of tokens of the storage resource on the target storage node in the unit time to the storage resource; and sends the lower limit quantity of tokens to the target storage node.22engUtility patentUS11320998B2