Patents by Inventor Archana Shyamsunder Samtani

Archana Shyamsunder Samtani 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).

  • Storage system and method for prestaging data in a cache for improved performance
    Patent number: 7120759
    Abstract: A storage system and method for prestaging data in a cache based on relative changes in the frequency of data access and relative changes in the effectiveness of previous prestage operations. The relative changes in the frequency of data access are determined by storing statistics of data access to all regions in the system and comparing recent access statistics to the stored data. Access statistics include data location, I/O size and access frequency. The relative changes in the effectiveness of previous prestage operations are detected by recording the number of previous prestaging operations for a region, recording the number of I/O requests for data that has been prestaged, and dividing the number of I/O requests for previously prestaged data in a region during a time period by the number of previous prestage operations for the region during the same time.
    Type: Grant
    Filed: August 29, 2003
    Date of Patent: October 10, 2006
    Assignee: International Business Machines Corporation
    Inventors: Lawrence Yium-Chee Chiu, Archana Shyamsunder Samtani