Patents by Inventor David Leroy Rand

David Leroy Rand 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).

  • Recovery of data on a primary data volume
    Patent number: 7778958
    Abstract: Data on a primary data volume is restored by generating an image of the primary data volume at a specified point-time based on data stored on a backup data volume, where the data stored on the backup data volume includes data written to the primary data volume and stamps to indicate when the data was written to the primary data volume. The primary data volume is restored based on the generated image of the primary data volume. Additionally, while the primary data volume is being restored, read/write requests to the primary data volume are satisfied using the generated image of the primary data volume.
    Type: Grant
    Filed: April 10, 2003
    Date of Patent: August 17, 2010
    Assignee: Quantum Corporation
    Inventors: David Leroy Rand, Lloyd Alan Poston
  • Creating a backup volume using a data profile of a host volume
    Patent number: 7185031
    Abstract: A backup volume on a backup system is created/updated by reading data stored on a host volume on a host system. A data profile for the host volume is generated based on the read data, where the data profile characterizes the data stored on the host volume. The data profile is sent to the backup system, and data that does not need to be obtained from the host system is determined on the backup system based on the data profile.
    Type: Grant
    Filed: March 17, 2003
    Date of Patent: February 27, 2007
    Assignee: Quantum Corporation
    Inventor: David Leroy Rand
  • Creating a backup volume using a data profile of a host volume
    Publication number: 20040002999
    Abstract: A backup volume on a backup system is created/updated by reading data stored on a host volume on a host system. A data profile for the host volume is generated based on the read data, where the data profile characterizes the data stored on the host volume. The data profile is sent to the backup system, and data that does not need to be obtained from the host system is determined on the backup system based on the data profile.
    Type: Application
    Filed: March 17, 2003
    Publication date: January 1, 2004
    Inventor: David Leroy Rand