Patents by Inventor Malahal R. Nalnenl

Malahal R. Nalnenl 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).

  • Achieving cache consistency while allowing concurrent changes to metadata
    Patent number: 7480654
    Abstract: A method and system for supporting a concurrent recordation of a change in a data file by a server while allowing an application to continue writing changes to a data file. In response to a change in a data file, a near-instantaneous version of the file is created. Metadata reflecting the change to the data file are synchronized with a version of the file in cache and recorded in persistent storage. During the process of recording metadata changes to the file, subsequent changes to the data file may continue, and metadata reflecting the changes may be recorded in a subsequent near-instantaneous version of the file which may also be synchronized with a version of the metadata in persistent storage.
    Type: Grant
    Filed: December 20, 2004
    Date of Patent: January 20, 2009
    Assignee: International Business Machines Corporation
    Inventors: Venkateswararao Jujjuri, Malahal R. Nalnenl, Rohit K. Prasad, Senthil Rajaram, Roger C. Raphael