Patents by Inventor Chitong Chung

Chitong Chung 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).

  • Distributed storage orphan scan
    Patent number: 11422743
    Abstract: A distributed storage system includes a primary storage system and a secondary storage system. The secondary storage system stores the actual data and the primary storage system stores metadata for the actual data. The metadata references at the primary storage system may be deleted without deleting the corresponding data at the secondary storage system. Snapshots of the metadata at the primary storage system are sent to the secondary storage system. The secondary storage system can compare two metadata snapshots received from the primary storage in order to determine whether data stored at the secondary storage system has been deleted at the primary storage system for longer than a retention period. Such data may be deleted to free up storage space at the secondary storage server.
    Type: Grant
    Filed: June 8, 2020
    Date of Patent: August 23, 2022
    Assignee: SAP SE
    Inventors: Vivek Kandiyanallur, Jia Feng, Alexander Chernavin, Chitong Chung, Shyam Sunder Reddy Avula, Xin Guo, Scott Hamilton, Clay Jacobs, Christopher de Castro, Kaushik Ghosh
  • Distributed Storage Orphan Scan
    Publication number: 20210318834
    Abstract: A distributed storage system includes a primary storage system and a secondary storage system. The secondary storage system stores the actual data and the primary storage system stores metadata for the actual data. The metadata references at the primary storage system may be deleted without deleting the corresponding data at the secondary storage system. Snapshots of the metadata at the primary storage system are sent to the secondary storage system. The secondary storage system can compare two metadata snapshots received from the primary storage in order to determine whether data stored at the secondary storage system has been deleted at the primary storage system for longer than a retention period. Such data may be deleted to free up storage space at the secondary storage server.
    Type: Application
    Filed: June 8, 2020
    Publication date: October 14, 2021
    Inventors: Vivek Kandiyanallur, Jia Feng, Alexander Chernavin, Chitong Chung, Shyam Sunder Reddy Avula, Xin Guo, Scott Hamilton, Clay Jacobs, Christopher de Castro, Kaushik Ghosh