Patents by Inventor Changsheng Ren

Changsheng Ren 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).

  • Method, electronic device and computer program product for snapshot replication
    Patent number: 11409700
    Abstract: Techniques involve: in response to a first session for asynchronous snapshot replication being established between a first source device and a destination device, determining whether the first source device and the destination device have a common baseline snapshot. Such techniques further involve: in response to determining absence of the baseline snapshot, determining whether initial synchronization from a second source device to the destination device is completed. Such techniques further involve: replicating, based on a result of the determining, at least one user snapshot at the first source device to the destination device. Accordingly, duplicated user snapshots at the destination device are significantly reduced. The snapshot management and space utilization of the destination device are also improved.
    Type: Grant
    Filed: October 16, 2019
    Date of Patent: August 9, 2022
    Assignee: EMC IP Holding Company LLC
    Inventors: Changsheng Ren, Qiu Shang, Yue Qian
  • METHOD, ELECTRONIC DEVICE AND COMPUTER PROGRAM PRODUCT FOR SNAPSHOT REPLICATION
    Publication number: 20200133919
    Abstract: Techniques involve: in response to a first session for asynchronous snapshot replication being established between a first source device and a destination device, determining whether the first source device and the destination device have a common baseline snapshot. Such techniques further involve: in response to determining absence of the baseline snapshot, determining whether initial synchronization from a second source device to the destination device is completed. Such techniques further involve: replicating, based on a result of the determining, at least one user snapshot at the first source device to the destination device. Accordingly, duplicated user snapshots at the destination device are significantly reduced. The snapshot management and space utilization of the destination device are also improved.
    Type: Application
    Filed: October 16, 2019
    Publication date: April 30, 2020
    Inventors: Changsheng Ren, Qiu Shang, Yue Qian