Patents by Inventor Mark Yue Qian
Mark Yue Qian 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).
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Patent number: 11200197Abstract: Embodiments of the present disclosure provide a method and device for data duplication cutover. The method includes initiating duplication of initial data from a source device to a destination device, wherein the initial data are data of a file system stored on the source device upon the initiating. The method further includes, in response to completing the duplication of the initial data, updating a session associated with the file system. Furthermore, the method includes, after updating the session, triggering the source device and the destination device into a data unavailable state to perform duplication of delta data from the source device to the destination device, wherein the delta data are data of the file system changed during duplication of the initial data. Utilization of the cutover mechanism proposed in the present disclosure enables effective reduction of data unavailable period of time.Type: GrantFiled: June 4, 2018Date of Patent: December 14, 2021Assignee: EMC IP Holding Company LLCInventors: Yuan Luo, Ning Xu, Qiu Shang, Mark Yue Qian, Colin He Wang
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Patent number: 10901630Abstract: To monitor data duplication progress, embodiments of the present disclosure relate to a method and apparatus for determining data duplication progress in real-time. The method comprises initiating a duplication of data from a source system to a destination system. The method further comprises determining first duplication progress for an initial stage of the duplication, original data existing on the source system when the duplication is initiated being duplicated in the initial stage. Furthermore, the method further comprises determining, independently from the initial stage, second duplication progress for a delta stage of the duplication, delta data being duplicated in the delta stage and including at least data generated during the initial stage. The present disclosure develops a fine-grained monitoring mechanism of data duplication progress.Type: GrantFiled: April 17, 2018Date of Patent: January 26, 2021Assignee: EMC IP Holding Company LLCInventors: Yuan Luo, Ning Xu, Frank Yuanyang Wu, Qiu Shang, Mark Yue Qian
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Patent number: 10855776Abstract: A method and device for managing sessions comprises obtaining first identification information of a first session of a plurality of sessions and group operation identification information of a group operation to be performed for the plurality of sessions, each of the plurality of sessions replicating, from a source of the session to a destination of the session, a file system or a management system that manages the file system; determining whether the first session meets a condition that a session is suitable to be selected as a managing session, the managing session managing the plurality of sessions to perform the group operation on the plurality of sessions; in response to the first session failing to meet the condition, obtaining second identification information of a second session of the plurality of sessions, the second identification information being different from the first identification information; and selecting the managing session based on the second identification information.Type: GrantFiled: June 4, 2018Date of Patent: December 1, 2020Assignee: EMC IP Holding Company LLCInventors: Qiu Shang, Yuan Luo, Mark Yue Qian, Colin He Wang
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Patent number: 10678749Abstract: A method and device for dispatching replication tasks in a network storage device. For instance, a method of dispatching replication tasks in a network storage device includes: in response to receiving a request for replicating a plurality of sessions, dispatching a task for replicating a configuration session among the plurality of sessions to a first processing unit of the network storage device, the configuration session including configuration information describing a plurality of sessions; dispatching a plurality of tasks for replicating other sessions among the plurality of sessions except the configuration session to a plurality of second processing units different from the first processing unit; and in response to the first processing unit and the plurality of second processing units completing the respective tasks, aggregating results of replicating the plurality of sessions. With the technical solution of the present disclosure, processing efficiency can be improved and time can be saved.Type: GrantFiled: May 31, 2018Date of Patent: June 9, 2020Assignee: EMC IP Holding Company LLCInventors: Mark Yue Qian, Yuan Luo, Qiu Shang, Xiyu Han, David Changssheng Ren
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Patent number: 10587470Abstract: Various embodiments of the present disclosure provide a method for presenting a storage cluster status, comprising: in response to a request for monitoring a first target node in a storage cluster, monitoring whether a configuration status of the first target node is changed; and in response to the configuration status of the first target node being changed, presenting changed configuration status information of the first target node to the user.Type: GrantFiled: September 21, 2016Date of Patent: March 10, 2020Assignee: EMC IP Holding Company LLCInventors: Honglei Cong, Ryan Menglei Liang, Mark Yue Qian, Zhou Huang
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Publication number: 20190129886Abstract: Embodiments of the present disclosure provide a method and device for data duplication cutover. The method includes initiating duplication of initial data from a source device to a destination device, wherein the initial data are data of a file system stored on the source device upon the initiating. The method further includes, in response to completing the duplication of the initial data, updating a session associated with the file system. Furthermore, the method includes, after updating the session, triggering the source device and the destination device into a data unavailable state to perform duplication of delta data from the source device to the destination device, wherein the delta data are data of the file system changed during duplication of the initial data. Utilization of the cutover mechanism proposed in the present disclosure enables effective reduction of data unavailable period of time.Type: ApplicationFiled: June 4, 2018Publication date: May 2, 2019Inventors: Yuan Luo, Ning Xu, Qiu Shang, Mark Yue Qian, Colin He Wang
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Publication number: 20180352028Abstract: A method and device for dispatching replication tasks in a network storage device. For instance, a method of dispatching replication tasks in a network storage device includes: in response to receiving a request for replicating a plurality of sessions, dispatching a task for replicating a configuration session among the plurality of sessions to a first processing unit of the network storage device, the configuration session including configuration information describing a plurality of sessions; dispatching a plurality of tasks for replicating other sessions among the plurality of sessions except the configuration session to a plurality of second processing units different from the first processing unit; and in response to the first processing unit and the plurality of second processing units completing the respective tasks, aggregating results of replicating the plurality of sessions. With the technical solution of the present disclosure, processing efficiency can be improved and time can be saved.Type: ApplicationFiled: May 31, 2018Publication date: December 6, 2018Inventors: Mark Yue Qian, Yuan Luo, Qiu Shang, Xiyu Han, David Changssheng Ren
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Publication number: 20180352037Abstract: A method and device for managing sessions comprises obtaining first identification information of a first session of a plurality of sessions and group operation identification information of a group operation to be performed for the plurality of sessions, each of the plurality of sessions replicating, from a source of the session to a destination of the session, a file system or a management system that manages the file system; determining whether the first session meets a condition that a session is suitable to be selected as a managing session, the managing session managing the plurality of sessions to perform the group operation on the plurality of sessions; in response to the first session failing to meet the condition, obtaining second identification information of a second session of the plurality of sessions, the second identification information being different from the first identification information; and selecting the managing session based on the second identification information.Type: ApplicationFiled: June 4, 2018Publication date: December 6, 2018Inventors: Qiu Shang, Yuan Luo, Mark Yue Qian, Colin He Wang
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Publication number: 20180300070Abstract: To monitor data duplication progress, embodiments of the present disclosure relate to a method and apparatus for determining data duplication progress in real-time. The method comprises initiating a duplication of data from a source system to a destination system. The method further comprises determining first duplication progress for an initial stage of the duplication, original data existing on the source system when the duplication is initiated being duplicated in the initial stage. Furthermore, the method further comprises determining, independently from the initial stage, second duplication progress for a delta stage of the duplication, delta data being duplicated in the delta stage and including at least data generated during the initial stage. The present disclosure develops a fine-grained monitoring mechanism of data duplication progress.Type: ApplicationFiled: April 17, 2018Publication date: October 18, 2018Inventors: Yuan Luo, Ning Xu, Frank Yuanyang Wu, Qiu Shang, Mark Yue Qian
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Publication number: 20170093629Abstract: Various embodiments of the present disclosure provide a method for presenting a storage cluster status, comprising: in response to a request for monitoring a first target node in a storage cluster, monitoring whether a configuration status of the first target node is changed; and in response to the configuration status of the first target node being changed, presenting changed configuration status information of the first target node to the user.Type: ApplicationFiled: September 21, 2016Publication date: March 30, 2017Inventors: Honglei Cong, Ryan Menglei Liang, Mark Yue Qian, Zhou Huang