Patents by Inventor Devendra R. Jaisinghani

Devendra R. Jaisinghani 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).

  • Method and apparatus for recovering from failure of a mirrored boot device
    Patent number: 6785838
    Abstract: A system and method are provided for recovering from the failure of a mirrored boot device (e.g., disk drive). One method is implemented for a computer system that mirrors two (or more) boot devices. If one of the devices fails, a set of compensating activities is performed, which may include removing the failed device from the list of devices from which the system may boot, deleting mirror state data from the device and removing the failed device from the mirroring scheme. After the failed device is repaired or replaced, a set of reintegrating activities is performed, which may include including the device in the mirroring scheme, restoring mirror state data to the device and adding the device to the list of boot devices. Even if the system includes only two mirrored boot devices and one of them fails, it can continue operation and can reboot successfully without using stale data.
    Type: Grant
    Filed: February 13, 2001
    Date of Patent: August 31, 2004
    Assignee: Sun Microsystems, Inc.
    Inventors: Swee Boon Lim, Devendra R. Jaisinghani, Sanjay G. Nadkarni, Robert Gittins
  • Method and apparatus for recovering from failure of a mirrored boot device
    Publication number: 20020112198
    Abstract: A system and method are provided for recovering from the failure of a mirrored boot device (e.g., disk drive). One method is implemented for a computer system that mirrors two (or more) boot devices. If one of the devices fails, a set of compensating activities is performed, which may include removing the failed device from the list of devices from which the system may boot, deleting mirror state data from the device and removing the failed device from the mirroring scheme. After the failed device is repaired or replaced, a set of reintegrating activities is performed, which may include including the device in the mirroring scheme, restoring mirror state data to the device and adding the device to the list of boot devices. Even if the system includes only two mirrored boot devices and one of them fails, it can continue operation and can reboot successfully without using stale data.
    Type: Application
    Filed: February 13, 2001
    Publication date: August 15, 2002
    Inventors: Swee Boon Lim, Devendra R. Jaisinghani, Sanjay G. Nadkarni, Robert Gittins