Patents by Inventor Harriet Zhihui Qiu

Harriet Zhihui Qiu 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).

  • Seamless migration of storage volumes between storage arrays
    Patent number: 10678465
    Abstract: While migrating a source volume to a destination storage array, disabling the source volume causes a source storage array to send a non-standard failure status code to all host computers in a cluster that includes the source storage array and the destination storage array. While the source volume is disabled with regard to standard host I/O requests received from host computers in the cluster, in response to receipt of the non-standard failure status code, a customized plugin added to the host computers transfers persistent reservation information to the destination storage array using non-standard read and set persistent reservation information commands. The destination volume is then enabled to process host I/O requests in accordance with the transferred persistent reservation information, and an active path for accessing the source volume is modified in each one of the host computers in the cluster to indicate the destination volume in the destination storage array.
    Type: Grant
    Filed: May 23, 2018
    Date of Patent: June 9, 2020
    Assignee: EMC IP Holding Company LLC
    Inventors: Changyu Feng, Liam Xiongcheng Li, Harriet Zhihui Qiu, Hongpo Gao, Yousheng Liu
  • SEAMLESS MIGRATION OF STORAGE VOLUMES BETWEEN STORAGE ARRAYS
    Publication number: 20190332308
    Abstract: While migrating a source volume to a destination storage array, disabling the source volume causes a source storage array to send a non-standard failure status code to all host computers in a cluster that includes the source storage array and the destination storage array. While the source volume is disabled with regard to standard host I/O requests received from host computers in the cluster, in response to receipt of the non-standard failure status code, a customized plugin added to the host computers transfers persistent reservation information to the destination storage array using non-standard read and set persistent reservation information commands. The destination volume is then enabled to process host I/O requests in accordance with the transferred persistent reservation information, and an active path for accessing the source volume is modified in each one of the host computers in the cluster to indicate the destination volume in the destination storage array.
    Type: Application
    Filed: May 23, 2018
    Publication date: October 31, 2019
    Inventors: Changyu Feng, Liam Xiongcheng Li, Harriet Zhihui Qiu, Hongpo Gao, Yousheng Liu