Patents by Inventor Ashley D. Lai

Ashley D. Lai 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).

  • System and method for handing input/output errors during recovery of journaling files in a data processing system
    Patent number: 7472138
    Abstract: A system and method in a data processing system for recovering data in a file system. A request to modify a data block in the file system is detected. In response to detecting the request to modify the data block, metadata describing the data block in the file system is written in a log. In response to detecting an error during the writing of the metadata, an error counter is incremented. Finally, in response to a request to recover the data in the file system, the metadata is read only if the error counter is less than or equal to a predetermined value.
    Type: Grant
    Filed: December 14, 2004
    Date of Patent: December 30, 2008
    Assignee: International Business Machines Corporation
    Inventors: Janet Elizabeth Adkins, Joon Chang, Ashley D. Lai