Patents by Inventor Jhaanaki M. Krishnan

Jhaanaki M. Krishnan 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).

  • Apparatus and methods for an appliance to recover data from a storage device
    Patent number: 8549240
    Abstract: Disclosed is a data recovery mechanism associated with a data writing process in a storage area network (SAN). In general, a data writing mechanism is provided so that a particular host can write data to a storage device in a particular SAN session. One specific example of a data writing mechanism is a data tapping mechanism that provides a copy of this data to an appliance. The data recovery mechanism allows the appliance to recover data from the particular target, for example, when the data was unsuccessfully mirrored to the appliance during the data tapping or when the appliance needs to obtain the data that was written prior to a data tapping procedure being initiated. In one embodiment, the data recovery mechanism is set up so that the appliance can recover data from the target by mimicking the particular host.
    Type: Grant
    Filed: February 16, 2006
    Date of Patent: October 1, 2013
    Assignee: Cisco Technology, Inc.
    Inventors: Samar Sharma, Roy M. D'Cruz, Sanjaya Kumar, Jhaanaki M. Krishnan
  • Apparatus and methods for controlling a data tapping session in a storage area network
    Patent number: 8239477
    Abstract: Disclosed is a session modification mechanism for altering a data tapping process in a storage area network (SAN). In general, a data tapping mechanism is set up so that an appliance receives SAN data that is tapped from a particular SAN session. That is, the data tapping mechanism provides to a particular appliance a copy of the SAN data that is being written from a particular host to a particular storage device. The session modification mechanism allows the appliance to alter various aspects of the SAN session that is to be (or is being) tapped.
    Type: Grant
    Filed: February 16, 2006
    Date of Patent: August 7, 2012
    Assignee: Cisco Technology, Inc.
    Inventors: Samar Sharma, Roy M. D'Cruz, Jhaanaki M. Krishnan, Prashant Billore, Dinesh G. Dutt
  • Apparatus and methods for facilitating data tapping with host clustering in a storage area network
    Patent number: 7506124
    Abstract: Disclosed is apparatus and methods for enabling an appliance to receive data being sent between any host of a host cluster to a specified storage device's logical unit (LUN) in a single stream or session. In one embodiment, a data virtual target is initially set up for a specified storage device LUN so that data written from a host to the specified storage device LUN is received by the DVT. An appliance then sends a session request to mirror data that is sent to the DVT (and specified storage device LUN) to a specified LUN of the appliance. The session request is not host specific. That is, data that is sent by any host to the DVT is mirrored to the same appliance LUN.
    Type: Grant
    Filed: February 24, 2006
    Date of Patent: March 17, 2009
    Assignee: Cisco Technology, Inc.
    Inventors: Samar Sharma, Roy M. D'Cruz, Jhaanaki M. Krishnan, Prashant Billore, Sanjaya Kumar, Dinesh G. Dutt