Patents by Inventor Dina A. Eldin

Dina A. Eldin 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).

  • Systems and methods for dynamic optimization of flash cache in storage devices
    Patent number: 9959210
    Abstract: In various embodiments, a storage device includes a magnetic media, a cache memory, and a drive controller. In embodiments, the drive controller is configured to establish a portion of the cache memory as an archival zone having a cache policy to maximize write hits. The drive controller is further configured to pre-erase the archival zone, direct writes from a host to the archival zone, and flush writes from the archival zone to the magnetic media. In embodiments, the drive controller is configured to establish a portion of the cache memory as a retrieval zone having a cache policy to maximize read hits. The drive controller is further configured to pre-fetch data from the magnetic media to the retrieval zone, transfer data from the retrieval zone to a host upon request by the host, and transfer read ahead data to the retrieval zone to replace data transferred to the host.
    Type: Grant
    Filed: April 20, 2016
    Date of Patent: May 1, 2018
    Assignee: DELL PRODUCTS, LP
    Inventors: Munif F. Farhan, William F. Sauber, Dina A. Eldin
  • Diagnostic method and apparatus for a tape storage system
    Patent number: 9524749
    Abstract: A diagnostic method and system comprising writing to a tape location of a tape medium using a first tape head as the tape medium is transported in a first direction, reading from the tape location using a second tape head as the tape medium is transported in the first direction, detecting an occurrence of a tape system failure, performing a diagnostic tape operation selected from a group consisting of writing to the tape location using the second tape head as the tape medium is transported in the first direction and reading from the tape location using the first tape head as the tape medium is transported in the first direction, differentially diagnosing a tape medium failure or a tape head failure depending on whether the tape operation failure is observed in response to performing the diagnostic tape operation, and posting a corresponding error code.
    Type: Grant
    Filed: November 13, 2015
    Date of Patent: December 20, 2016
    Assignee: DELL PRODUCTS, LP
    Inventors: Dina A. Eldin, Robert C. Dawson
  • Systems and Methods for Dynamic Optimization of Flash Cache in Storage Devices
    Publication number: 20160232100
    Abstract: In various embodiments, a storage device includes a magnetic media, a cache memory, and a drive controller. In embodiments, the drive controller is configured to establish a portion of the cache memory as an archival zone having a cache policy to maximize write hits. The drive controller is further configured to pre-erase the archival zone, direct writes from a host to the archival zone, and flush writes from the archival zone to the magnetic media. In embodiments, the drive controller is configured to establish a portion of the cache memory as a retrieval zone having a cache policy to maximize read hits. The drive controller is further configured to pre-fetch data from the magnetic media to the retrieval zone, transfer data from the retrieval zone to a host upon request by the host, and transfer read ahead data to the retrieval zone to replace data transferred to the host.
    Type: Application
    Filed: April 20, 2016
    Publication date: August 11, 2016
    Inventors: Munif F. Farhan, William F. Sauber, Dina A. Eldin
  • Systems and methods for dynamic optimization of flash cache in storage devices
    Patent number: 9330007
    Abstract: In various embodiments, a storage device includes a magnetic media, a cache memory, and a drive controller. In embodiments, the drive controller is configured to establish a portion of the cache memory as an archival zone having a cache policy to maximize write hits. The drive controller is further configured to pre-erase the archival zone, direct writes from a host to the archival zone, and flush writes from the archival zone to the magnetic media. In embodiments, the drive controller is configured to establish a portion of the cache memory as a retrieval zone having a cache policy to maximize read hits. The drive controller is further configured to pre-fetch data from the magnetic media to the retrieval zone, transfer data from the retrieval zone to a host upon request by the host, and transfer read ahead data to the retrieval zone to replace data transferred to the host.
    Type: Grant
    Filed: November 30, 2012
    Date of Patent: May 3, 2016
    Assignee: Dell Products, LP
    Inventors: Munif M. Farhan, William F. Sauber, Dina A. Eldin
  • Diagnostic Method and Apparatus for a Tape Storage System
    Publication number: 20160071540
    Abstract: A diagnostic method and system comprising writing to a tape location of a tape medium using a first tape head as the tape medium is transported in a first direction, reading from the tape location using a second tape head as the tape medium is transported in the first direction, detecting an occurrence of a tape system failure, performing a diagnostic tape operation selected from a group consisting of writing to the tape location using the second tape head as the tape medium is transported in the first direction and reading from the tape location using the first tape head as the tape medium is transported in the first direction, differentially diagnosing a tape medium failure or a tape head failure depending on whether the tape operation failure is observed in response to performing the diagnostic tape operation, and posting a corresponding error code.
    Type: Application
    Filed: November 13, 2015
    Publication date: March 10, 2016
    Inventors: Dina A. Eldin, Robert C. Dawson
  • Diagnostic method and apparatus for a tape storage system
    Patent number: 9202516
    Abstract: A diagnostic method and system comprising writing to a tape location of a tape medium using a first tape head as the tape medium is transported in a first direction, reading from the tape location using a second tape head as the tape medium is transported in the first direction, detecting an occurrence of a tape system failure, performing a diagnostic tape operation selected from a group consisting of writing to the tape location using the second tape head as the tape medium is transported in the first direction and reading from the tape location using the first tape head as the tape medium is transported in the first direction, differentially diagnosing a tape medium failure or a tape head failure depending on whether the tape operation failure is observed in response to performing the diagnostic tape operation, and posting a corresponding error code.
    Type: Grant
    Filed: June 30, 2014
    Date of Patent: December 1, 2015
    Assignee: Dell Products, LP
    Inventors: Dina A. Eldin, Robert C. Dawson
  • Systems and Methods for Dynamic Optimization of Flash Cache in Storage Devices
    Publication number: 20140156909
    Abstract: In various embodiments, a storage device includes a magnetic media, a cache memory, and a drive controller. In embodiments, the drive controller is configured to establish a portion of the cache memory as an archival zone having a cache policy to maximize write hits. The drive controller is further configured to pre-erase the archival zone, direct writes from a host to the archival zone, and flush writes from the archival zone to the magnetic media. In embodiments, the drive controller is configured to establish a portion of the cache memory as a retrieval zone having a cache policy to maximize read hits. The drive controller is further configured to pre-fetch data from the magnetic media to the retrieval zone, transfer data from the retrieval zone to a host upon request by the host, and transfer read ahead data to the retrieval zone to replace data transferred to the host.
    Type: Application
    Filed: November 30, 2012
    Publication date: June 5, 2014
    Applicant: Dell Products, LP
    Inventors: Munif M. Farhan, William F. Sauber, Dina A. Eldin