Patents by Inventor Kai Jehnen

Kai Jehnen 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).

  • I/O performance in heterogeneous storage environments
    Patent number: 10359948
    Abstract: An embodiment of the invention may include a method, computer program product, and system for improving I/O performance in a heterogeneous storage environment. The embodiment may include storage devices of different storage device types having different I/O performances. Each of the storage devices is accessible via a SAS interface. The embodiment may include identifying a plurality of storage devices of the heterogeneous storage environment. The embodiment may include creating a table including information about identifiable storage devices and attributes. The embodiment may include separating a block I/O data stream into storage device type classes. The embodiment may include routing I/O requests of corresponding device type classes to their assigned physical lanes using the information included in the table, thereby improving the I/O performance of the heterogeneous storage environment.
    Type: Grant
    Filed: August 28, 2017
    Date of Patent: July 23, 2019
    Assignee: International Business Machines Corporation
    Inventors: Itzhack Goldberg, Kai Jehnen, Frank Krick, Thorsten Muehge, Erik Rueger
  • I/O PERFORMANCE IN HETEROGENEOUS STORAGE ENVIRONMENTS
    Publication number: 20190065073
    Abstract: An embodiment of the invention may include a method, computer program product, and system for improving I/O performance in a heterogeneous storage environment. The embodiment may include storage devices of different storage device types having different I/O performances. Each of the storage devices is accessible via a SAS interface. The embodiment may include identifying a plurality of storage devices of the heterogeneous storage environment. The embodiment may include creating a table including information about identifiable storage devices and attributes. The embodiment may include separating a block I/O data stream into storage device type classes. The embodiment may include routing I/O requests of corresponding device type classes to their assigned physical lanes using the information included in the table, thereby improving the I/O performance of the heterogeneous storage environment.
    Type: Application
    Filed: August 28, 2017
    Publication date: February 28, 2019
    Inventors: Itzhack Goldberg, Kai Jehnen, Frank Krick, Thorsten Muehge, Erik Rueger