Patents by Inventor Zuohui Zhang

Zuohui Zhang 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).

  • Supporting a SCSI device on a non-SCSI transport medium of a network
    Patent number: 6209023
    Abstract: A network provides a method of virtualizing SCSI semantics onto a non-SCSI transport medium. The network includes a plurality of hosts or initiators, a SCSI bus coupled to a plurality of SCSI devices, and a bridge having a non-SCSI front end coupled to the non-SCSI transport medium and a SCSI back end coupled to the SCSI bus. The bridge provides firmware for performing various techniques for virtualizing certain SCSI semantics to ensure support (proper operation) of the plurality of SCSI devices. Examples of SCSI semantics for virtualizing SCSI-2 semantics onto a Fibre Channel interconnect medium (a non-SCSI-2 transport medium) include reserve/release support, unit attention support, the non-tagged command processing support for the initiators. Reserve/release support is virtualized by implementing virtual command responses to the RESERVE and RELEASE SCSI-2 command using a table for storing Fibre Channel world wide names (WWN) and the arbitrated loop address (ALPA) for the plurality of initiators.
    Type: Grant
    Filed: January 5, 1999
    Date of Patent: March 27, 2001
    Assignee: Compaq Computer Corporation
    Inventors: John E. Dimitroff, David L. Grant, Eugene E. Freeman, Robert S. Gready, Raymond A. Ritter, Zuohui Zhang