Patents by Inventor Cherami Min Liu

Cherami Min Liu 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).

  • Scaling out data protection infrastructure
    Patent number: 11669494
    Abstract: Embodiments for optimizing data storage instances in a cloud environment in which metadata is stored and accessed separately from content data in multiple different instances of data storage units. A metadata and content data storage instance optimization process determines the status of different instances of virtual storage resources for both metadata and content data. Full instances are powered down when they are not needed, empty instances are deleted, and data of partially full instances is moved to other appropriate instances to create empty instances that can be deleted. The data storage instance optimization process is provided as part of a data protection search process that provides an execution environment and user interface to the optimization process.
    Type: Grant
    Filed: May 22, 2020
    Date of Patent: June 6, 2023
    Assignee: EMC IP Holding Company LLC
    Inventors: Cherami Min Liu, Ming Zhang, Jing Yu, Arun Murti
  • Scale-out indexing for a distributed search engine
    Patent number: 11347778
    Abstract: Methods and systems for data indexing are disclosed. According to some embodiments, an index is split into a number of slots based on a slot power value. Each of the slots is assigned with a slot number. A first subset of the slots is allocated to a first shard mapped to the index. A second subset of the slots is allocated to a second shard mapped to the index. The first subset and the second subset are respectively allocated to the first shard and the second shard based on a shard-slot mapping.
    Type: Grant
    Filed: October 26, 2018
    Date of Patent: May 31, 2022
    Assignee: EMC IP HOLDING COMPANY LLC
    Inventors: Cherami Min Liu, Scott Ming Zhang, Jing Yu, Bruce Ke Zhao, Kunal Ruvala
  • SCALING OUT DATA PROTECTION INFRASTRUCTURE
    Publication number: 20210365415
    Abstract: Embodiments for optimizing data storage instances in a cloud environment in which metadata is stored and accessed separately from content data in multiple different instances of data storage units. A metadata and content data storage instance optimization process determines the status of different instances of virtual storage resources for both metadata and content data. Full instances are powered down when they are not needed, empty instances are deleted, and data of partially full instances is moved to other appropriate instances to create empty instances that can be deleted. The data storage instance optimization process is provided as part of a data protection search process that provides an execution environment and user interface to the optimization process.
    Type: Application
    Filed: May 22, 2020
    Publication date: November 25, 2021
    Inventors: Cherami Min Liu, Ming Zhang, Jing Yu, Arun Murti
  • SCALE-OUT INDEXING FOR A DISTRIBUTED SEARCH ENGINE
    Publication number: 20200134085
    Abstract: Methods and systems for data indexing are disclosed. According to some embodiments, an index is split into a number of slots based on a slot power value. Each of the slots is assigned with a slot number. A first subset of the slots is allocated to a first shard mapped to the index. A second subset of the slots is allocated to a second shard mapped to the index. The first subset and the second subset are respectively allocated to the first shard and the second shard based on a shard-slot mapping.
    Type: Application
    Filed: October 26, 2018
    Publication date: April 30, 2020
    Inventors: Cherami Min Liu, Scott Ming Zhang, Jing Yu, Bruce Ke Zhao, Kunal Ruvala