Patents by Inventor Matthew R. Orr

Matthew R. Orr 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).

  • Regrouping data during relocation to facilitate write amplification reduction
    Patent number: 10884914
    Abstract: A technique for garbage collection in a storage system includes generating regrouping metadata for one or more pages of at least two logical erase blocks (LEB). The regrouping metadata indicates an associated stream for each of the pages. Multiple of the LEBs that include valid pages associated with a first stream are selected, based on the regrouping metadata, for regrouping. The valid pages associated with the first stream from the selected LEBs are regrouped into a new LEB.
    Type: Grant
    Filed: February 19, 2016
    Date of Patent: January 5, 2021
    Assignee: International Business Machines Corporation
    Inventors: Razik S. Ahmed, Charles J. Camp, Timothy J. Fisher, Aaron D. Fry, Nikolas Ioannou, Jason Ma, Matthew R. Orr, Roman A. Pletka, Lincoln T. Simmons, Sasa Tomic
  • GARBAGE COLLECTION TECHNIQUES FOR A DATA STORAGE SYSTEM
    Publication number: 20170242789
    Abstract: A technique for garbage collection in a data storage system includes determining a dirty physical byte count for each of a plurality of candidate garbage collection units. The dirty physical byte count provides a total amount of dirty bytes. At least one of a dirty physical codeword container count and a dirty physical page count is determined for each of the candidate garbage collection units. The dirty physical codeword container count provides an amount of physical codeword containers that are completely dirty and the dirty physical page count provides an amount of physical pages that are completely dirty. A garbage collection unit, included in the candidate garbage collection units, is selected for garbage collection based on the dirty physical byte count and at least one of the dirty physical codeword container count and the dirty physical page count.
    Type: Application
    Filed: February 19, 2016
    Publication date: August 24, 2017
    Inventors: RAZIK S. AHMED, TIMOTHY J. FISHER, AARON D. FRY, NIKOLAS IOANNOU, JASON MA, MATTHEW R. ORR, ROMAN A. PLETKA, LINCOLN T. SIMMONS, SASA TOMIC
  • REGROUPING DATA DURING RELOCATION TO FACILITATE WRITE AMPLIFICATION REDUCTION
    Publication number: 20170242788
    Abstract: A technique for garbage collection in a storage system includes generating regrouping metadata for one or more pages of at least two logical erase blocks (LEB). The regrouping metadata indicates an associated stream for each of the pages. Multiple of the LEBs that include valid pages associated with a first stream are selected, based on the regrouping metadata, for regrouping. The valid pages associated with the first stream from the selected LEBs are regrouped into a new LEB.
    Type: Application
    Filed: February 19, 2016
    Publication date: August 24, 2017
    Inventors: RAZIK S. AHMED, CHARLES J. CAMP, TIMOTHY J. FISHER, AARON D. FRY, NIKOLAS IOANNOU, JASON MA, MATTHEW R. ORR, ROMAN A. PLETKA, LINCOLN T. SIMMONS, SASA TOMIC
  • Garbage collection techniques for a data storage system
    Patent number: 9740609
    Abstract: A technique for garbage collection in a data storage system includes determining a dirty physical byte count for each of a plurality of candidate garbage collection units. The dirty physical byte count provides a total amount of dirty bytes. At least one of a dirty physical codeword container count and a dirty physical page count is determined for each of the candidate garbage collection units. The dirty physical codeword container count provides an amount of physical codeword containers that are completely dirty and the dirty physical page count provides an amount of physical pages that are completely dirty. A garbage collection unit, included in the candidate garbage collection units, is selected for garbage collection based on the dirty physical byte count and at least one of the dirty physical codeword container count and the dirty physical page count.
    Type: Grant
    Filed: February 19, 2016
    Date of Patent: August 22, 2017
    Assignee: International Business Machines Corporation
    Inventors: Razik S. Ahmed, Timothy J. Fisher, Aaron D. Fry, Nikolas Ioannou, Jason Ma, Matthew R. Orr, Roman A. Pletka, Lincoln T. Simmons, Sasa Tomic