Patents by Inventor Dan Critchley

Dan Critchley 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).

  • Latency measurement in an I/O operation of computer data storage
    Patent number: 11119885
    Abstract: A method and a computer program product for latency measurement in an I/O operation. A storage system measures time periods taken in a write I/O operation and, using the measures time periods in the write I/O operation, the storage system monitors a delay that is caused by at least one of a host and a storage area network. A storage system measures time periods taken in a read I/O operation and, using the measures time periods in the read I/O operation, the storage system monitors a delay that is caused by at least one of a host and a storage area network in the read I/O operation.
    Type: Grant
    Filed: October 3, 2018
    Date of Patent: September 14, 2021
    Assignee: International Business Machines Corporation
    Inventors: Denis Senin, Roderick G. C. Moore, Dan Critchley, Jonathan W. L. Short, Tim McCarthy
  • LATENCY MEASUREMENT IN AN I/O OPERATION OF COMPUTER DATA STORAGE
    Publication number: 20200110692
    Abstract: A method and a computer program product for latency measurement in an I/O operation. A storage system measures time periods taken in a write I/O operation and, using the measures time periods in the write I/O operation, the storage system monitors a delay that is caused by at least one of a host and a storage area network. A storage system measures time periods taken in a read I/O operation and, using the measures time periods in the read I/O operation, the storage system monitors a delay that is caused by at least one of a host and a storage area network in the read I/O operation.
    Type: Application
    Filed: October 3, 2018
    Publication date: April 9, 2020
    Inventors: Denis Senin, Roderick G. C. Moore, Dan Critchley, Jonathan W. L. Short, Tim McCarthy