Patents by Inventor Ning Min Zhang

Ning Min Zhang 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).

  • Apparatus, method, and program product for data integrity during asynchronous remote copy
    Patent number: 10782913
    Abstract: A system, method, and program product are disclosed for asynchronous remote copy. One method includes transmitting a write request to a remote primary storage cluster for an asynchronous remote copy operation. The method also includes creating an entry in a write record stored in the local memory, the entry comprising a data consistency value, and removing the entry from the write record in response to receiving an acknowledgement from a remote secondary storage cluster that the asynchronous remote copy operation is completed.
    Type: Grant
    Filed: September 14, 2018
    Date of Patent: September 22, 2020
    Assignee: International Business Machines Corporation
    Inventors: Duo Chen, Jialin Feng, Dan Liu, Yuan Li, Ning Min Zhang
  • APPARATUS, METHOD, AND PROGRAM PRODUCT FOR DATA INTEGRITY DURING ASYNCHRONOUS REMOTE COPY
    Publication number: 20190042099
    Abstract: A system, method, and program product are disclosed for asynchronous remote copy. One method includes transmitting a write request to a remote primary storage cluster for an asynchronous remote copy operation. The method also includes creating an entry in a write record stored in the local memory, the entry comprising a data consistency value, and removing the entry from the write record in response to receiving an acknowledgement from a remote secondary storage cluster that the asynchronous remote copy operation is completed.
    Type: Application
    Filed: September 14, 2018
    Publication date: February 7, 2019
    Inventors: Duo Chen, Jialin Feng, Dan Liu, Yuan Li, Ning Min Zhang
  • Apparatus, method, and program product for data integrity during asynchronous remote copy
    Patent number: 10133510
    Abstract: A system, method, and program product are disclosed for asynchronous remote copy. One method includes transmitting a write request to a remote primary storage cluster for an asynchronous remote copy operation. The method also includes creating an entry in a write record stored in the local memory, the entry comprising a data consistency value, and removing the entry from the write record in response to receiving an acknowledgement from a remote secondary storage cluster that the asynchronous remote copy operation is completed.
    Type: Grant
    Filed: January 19, 2017
    Date of Patent: November 20, 2018
    Assignee: International Business Machines Corporation
    Inventors: Duo Chen, Jialin Feng, Dan Liu, Yuan Li, Ning Min Zhang
  • APPARATUS, METHOD, AND PROGRAM PRODUCT FOR DATA INTEGRITY DURING ASYNCHRONOUS REMOTE COPY
    Publication number: 20180203607
    Abstract: A system, method, and program product are disclosed for asynchronous remote copy. One method includes transmitting a write request to a remote primary storage cluster for an asynchronous remote copy operation. The method also includes creating an entry in a write record stored in the local memory, the entry comprising a data consistency value, and removing the entry from the write record in response to receiving an acknowledgement from a remote secondary storage cluster that the asynchronous remote copy operation is completed.
    Type: Application
    Filed: January 19, 2017
    Publication date: July 19, 2018
    Inventors: Duo Chen, Jialin Feng, Dan Liu, Yuan Li, Ning Min Zhang