Patents by Inventor Darshan Nagarajappa

Darshan Nagarajappa 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).

  • Assigning read requests based on busyness of devices
    Patent number: 9875040
    Abstract: Techniques are provided for assigning read requests to storage devices in a manner that reduces the likelihood that any storage device will become overloaded or underutilized. Specifically, a read-request handler assigns read requests that are directed to each particular item among the storage devices that have copies of the item based on how busy each of those storage devices is. Consequently, even though certain storage devices may have copies of the same item, there may be times during which one storage device is assigned a disproportionate number of the reads of the item because the other storage device is busy with read requests for other items, and there may be other times during which other storage device is assigned a disproportionate number of the reads of the item because the one storage device is busy with read request for other items.
    Type: Grant
    Filed: August 24, 2015
    Date of Patent: January 23, 2018
    Assignee: Oracle International Corporation
    Inventors: William H. Bridge, Jr., Prasad Bagal, Lavina Jain, Rajiv Wickremesinghe, Darshan Nagarajappa, Richard L. Long
  • ASSIGNING READ REQUESTS BASED ON BUSYNESS OF DEVICES
    Publication number: 20150363123
    Abstract: Techniques are provided for assigning read requests to storage devices in a manner that reduces the likelihood that any storage device will become overloaded or underutilized. Specifically, a read-request handler assigns read requests that are directed to each particular item among the storage devices that have copies of the item based on how busy each of those storage devices is. Consequently, even though certain storage devices may have copies of the same item, there may be times during which one storage device is assigned a disproportionate number of the reads of the item because the other storage device is busy with read requests for other items, and there may be other times during which other storage device is assigned a disproportionate number of the reads of the item because the one storage device is busy with read request for other items.
    Type: Application
    Filed: August 24, 2015
    Publication date: December 17, 2015
    Inventors: William H. Bridge, JR., Prasad Bagal, Lavina Jain, Rajiv Wickremesinghe, Darshan Nagarajappa, Richard L. Long
  • Assigning read requests based on busyness of devices
    Patent number: 9141508
    Abstract: Techniques are provided for assigning read requests to storage devices in a manner that reduces the likelihood that any storage device will become overloaded or underutilized. Specifically, a read-request handler assigns read requests that are directed to each particular item among the storage devices that have copies of the item based on how busy each of those storage devices is. Consequently, even though certain storage devices may have copies of the same item, there may be times during which one storage device is assigned a disproportionate number of the reads of the item because the other storage device is busy with read requests for other items, and there may be other times during which other storage device is assigned a disproportionate number of the reads of the item because the one storage device is busy with read request for other items.
    Type: Grant
    Filed: December 21, 2010
    Date of Patent: September 22, 2015
    Assignee: ORACLE INTERNATIONAL CORPORATION
    Inventors: Willliam H. Bridge, Jr., Prasad Bagal, Lavina Jain, Rajiv Wickremesinghe, Darshan Nagarajappa, Richard L. Long
  • ASSIGNING READ REQUESTS BASED ON BUSYNESS OF DEVICES
    Publication number: 20120159094
    Abstract: Techniques are provided for assigning read requests to storage devices in a manner that reduces the likelihood that any storage device will become overloaded or underutilized. Specifically, a read-request handler assigns read requests that are directed to each particular item among the storage devices that have copies of the item based on how busy each of those storage devices is. Consequently, even though certain storage devices may have copies of the same item, there may be times during which one storage device is assigned a disproportionate number of the reads of the item because the other storage device is busy with read requests for other items, and there may be other times during which other storage device is assigned a disproportionate number of the reads of the item because the one storage device is busy with read request for other items.
    Type: Application
    Filed: December 21, 2010
    Publication date: June 21, 2012
    Applicant: ORACLE INTERNATIONAL CORPORATION
    Inventors: Willliam H. Bridge, JR., Prasad Bagal, Lavina Jain, Rajiv Wickremesinghe, Darshan Nagarajappa, Richard L. Long