Patents by Inventor Chung-Shen Li

Chung-Shen Li 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).

  • HMC: A hybrid mirror-and-chained data replication method to support high data availability for disk arrays
    Patent number: 5559764
    Abstract: A method of distributing a set of data among a plurality of disks, which provides for load balancing in the event of a disk failure. In accordance with the method the total number of the disks in an array are divided into a number of clusters. The blocks of data are then stored in each cluster such that each cluster contains a complete set of the data and such that data block placement in each cluster is a unique permutation of the data block placement in the other clusters. In the event of a disk failure, data block accesses to the failed disk are redirected to a disk in the other cluster having a copy of the data block and further access to the disks that remain operational are rebalanced.
    Type: Grant
    Filed: August 18, 1994
    Date of Patent: September 24, 1996
    Assignee: International Business Machines Corporation
    Inventors: Ming-Syan Chen, Hui-I Hsiao, Chung-Shen Li, Philip S. Yu