Patents by Inventor Jan Jitze Krol

Jan Jitze Krol 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).

  • Data storage system including unique block pool manager and applications in tiered storage
    Patent number: 7831793
    Abstract: A data storage system (10) that receives a data set from a software module (18A-D) includes a first tier storage device (240), a second tier storage device (242), a redundancy reducer (21) and a migration engine (28). The first tier storage device (240) has a first effective storage capacity and the second tier storage device (242) can have a second effective storage capacity that is greater than the first effective storage capacity. The redundancy reducer (21) subdivides the data set into a plurality of data blocks (20) and reduces the redundancy of the data blocks (20). The migration engine (28) moves one or more of the data blocks (20) between the first tier storage device (240) and the second tier storage device (242) based on a migration parameter of the data block (20). The first tier storage device (240) can store data in a random access manner and the second tier storage device (242) can store data in a random or sequential access manner.
    Type: Grant
    Filed: February 26, 2007
    Date of Patent: November 9, 2010
    Assignee: Quantum Corporation
    Inventors: Tridib Chakravarty, Jan Jitze Krol, John Maroney
  • Data storage system including unique block pool manager and applications in tiered storage
    Publication number: 20070208788
    Abstract: A data storage system (10) that receives a data set from a software module (18A-D) includes a first tier storage device (240), a second tier storage device (242), a redundancy reducer (21) and a migration engine (28). The first tier storage device (240) has a first effective storage capacity and the second tier storage device (242) can have a second effective storage capacity that is greater than the first effective storage capacity. The redundancy reducer (21) subdivides the data set into a plurality of data blocks (20) and reduces the redundancy of the data blocks (20). The migration engine (28) moves one or more of the data blocks (20) between the first tier storage device (240) and the second tier storage device (242) based on a migration parameter of the data block (20). The first tier storage device (240) can store data in a random access manner and the second tier storage device (242) can store data in a random or sequential access manner.
    Type: Application
    Filed: February 26, 2007
    Publication date: September 6, 2007
    Inventors: Tridib Chakravarty, Jan Jitze Krol, John Maroney