Patents by Inventor Kenneth W. Todd

Kenneth W. Todd 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).

  • Patent number: 10031844
    Abstract: For data management by a processor device in a computing storage environment, a threshold for an amount of Non Volatile Storage (NVS) space to be consumed by any particular logically contiguous storage space in the computing storage environment is established based on at least one of a Redundant Array of Independent Disks (RAID) type, a number of point-in-time copy source data segments in the logically contiguous storage space, and a storage classification. Establishing the threshold for the amount of NVS to be consumed based on the number of point-in-time copy source data segments in the logically contiguous storage space further includes considering resources needed to perform a Copy Source To Target (CST) operation required prior to the point-in-time copy source data segments being destaged.
    Type: Grant
    Filed: November 10, 2017
    Date of Patent: July 24, 2018
    Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Kevin J. Ash, Michael T. Benhase, Lokesh M. Gupta, Kenneth W. Todd
  • Patent number: 10007600
    Abstract: For data management by a processor device in a computing storage environment, a threshold for an amount of Non Volatile Storage (NVS) space to be consumed by any particular logically contiguous storage space in the computing storage environment is established based on at least one of a Redundant Array of Independent Disks (RAID) type, a number of point-in-time copy source data segments in the logically contiguous storage space, and a storage classification. Establishing the threshold for the amount of NVS to be consumed based on the number of point-in-time copy source data segments in the logically contiguous storage space further includes considering resources needed to perform a Copy Source To Target (CST) operation required prior to the point-in-time copy source data segments being destaged.
    Type: Grant
    Filed: November 10, 2017
    Date of Patent: June 26, 2018
    Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Kevin J. Ash, Michael T. Benhase, Lokesh M. Gupta, Kenneth W. Todd
  • Publication number: 20180095870
    Abstract: For data management by a processor device in a computing storage environment, a threshold for an amount of Non Volatile Storage (NVS) space to be consumed by any particular logically contiguous storage space in the computing storage environment is established based on at least one of a Redundant Array of Independent Disks (RAID) type, a number of point-in-time copy source data segments in the logically contiguous storage space, and a storage classification. Establishing the threshold for the amount of NVS to be consumed based on the number of point-in-time copy source data segments in the logically contiguous storage space further includes considering resources needed to perform a Copy Source To Target (CST) operation required prior to the point-in-time copy source data segments being destaged.
    Type: Application
    Filed: November 10, 2017
    Publication date: April 5, 2018
    Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Kevin J. ASH, Michael T. BENHASE, Lokesh M. GUPTA, Kenneth W. TODD
  • Publication number: 20180089075
    Abstract: For data management by a processor device in a computing storage environment, a threshold for an amount of Non Volatile Storage (NVS) space to be consumed by any particular logically contiguous storage space in the computing storage environment is established based on at least one of a Redundant Array of Independent Disks (RAID) type, a number of point-in-time copy source data segments in the logically contiguous storage space, and a storage classification. Establishing the threshold for the amount of NVS to be consumed based on the number of point-in-time copy source data segments in the logically contiguous storage space further includes considering resources needed to perform a Copy Source To Target (CST) operation required prior to the point-in-time copy source data segments being destaged.
    Type: Application
    Filed: November 10, 2017
    Publication date: March 29, 2018
    Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Kevin J. ASH, Michael T. BENHASE, Lokesh M. GUPTA, Kenneth W. TODD
  • Patent number: 9852059
    Abstract: For data management by a processor device in a computing storage environment, a threshold for an amount of Non Volatile Storage (NVS) space to be consumed by any particular logically contiguous storage space in the computing storage environment is established based on at least one of a Redundant Array of Independent Disks (RAID) type, a number of point-in-time copy source data segments in the logically contiguous storage space, and a storage classification.
    Type: Grant
    Filed: November 7, 2013
    Date of Patent: December 26, 2017
    Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Kevin J. Ash, Michael T. Benhase, Lokesh M. Gupta, Kenneth W. Todd
  • Patent number: 9852058
    Abstract: For data management by a processor device in a computing storage environment, a threshold for an amount of Non Volatile Storage (NVS) space to be consumed by any particular logically contiguous storage space in the computing storage environment is established based on at least one of a Redundant Array of Independent Disks (RAID) type, a number of point-in-time copy source data segments in the logically contiguous storage space, and a storage classification.
    Type: Grant
    Filed: September 28, 2012
    Date of Patent: December 26, 2017
    Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Kevin J. Ash, Michael T. Benhase, Lokesh M. Gupta, Kenneth W. Todd
  • Patent number: 9785358
    Abstract: A storage controller receives a request to avoid extent conflict checking from a host application executing in a host that is coupled to the storage controller. In response to receiving a request, a host I/O process that executes in the storage controller to satisfy I/O requests from the host application opportunistically releases a track of an extent to a copy services process at an earliest point in time when the track of the extent is longer needed by the host I/O process and is needed by the copy services process.
    Type: Grant
    Filed: January 15, 2016
    Date of Patent: October 10, 2017
    Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Olympia Gluck, Beth A. Peterson, Kenneth W. Todd
  • Patent number: 9665492
    Abstract: A system for data management in a computing storage environment includes a processor device, operable in the computing storage environment, that divides a plurality of counters tracking write and discard storage operations through Non Volatile Storage (NVS) space into first, accurate, and second, fuzzy, groups where the first, accurate, group is one of updated on a per operation basis, while the second, fuzzy, group is one of updated on a more infrequent basis as compared to the first, accurate group.
    Type: Grant
    Filed: July 30, 2015
    Date of Patent: May 30, 2017
    Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Kevin J. Ash, Michael T. Benhase, Lokesh M. Gupta, Kenneth W. Todd
  • Patent number: 9632941
    Abstract: A method for data management in a computing storage environment includes a processor device, operable in the computing storage environment, that divides a plurality of counters tracking write and discard storage operations through Non Volatile Storage (NVS) space into first, accurate, and second, fuzzy, groups where the first, accurate, group is one of updated on a per operation basis, while the second, fuzzy, group is one of updated on a more infrequent basis as compared to the first, accurate group.
    Type: Grant
    Filed: November 4, 2015
    Date of Patent: April 25, 2017
    Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Kevin J. Ash, Michael T. Benhase, Lokesh M. Gupta, Kenneth W. Todd
  • Patent number: 9542331
    Abstract: Mechanisms for concurrent update of data in cache with destage of data from the cache to disk by a processor device. A second copy of the data is established in the cache and on a cache directory. A first copy of the data and the second copy of the data are adjacently ordered in the cache directory. One of the first and second copies is held for an update operation so as to include a latest data modification, while the remaining copy concurrently is used for a destage operation to disk.
    Type: Grant
    Filed: September 22, 2014
    Date of Patent: January 10, 2017
    Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Kevin J. Ash, Lokesh M. Gupta, Kenneth W. Todd, Boyan Zhao
  • Patent number: 9483408
    Abstract: Various embodiments for initializing metadata in a computing storage environment by a processor. A Release Generation Number (RGN) is associated with a volume, and an RGN is associated with a metadata track. Upon a release of storage space in the volume, the RGN associated with the volume is incremented. Upon an initialization of the metadata track, the RGN associated with the metadata track is updated to be consistent in generation with the RGN associated with the volume. Upon an access of the metadata track, the RGN of the metadata track is compared against the RGN of the volume, and the metadata track is initialized if a match is not found.
    Type: Grant
    Filed: April 9, 2015
    Date of Patent: November 1, 2016
    Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Ellen J. Grusy, Lokesh M. Gupta, Kurt A. Lovrien, Kenneth W. Todd
  • Publication number: 20160299848
    Abstract: Various embodiments for initializing metadata in a computing storage environment by a processor. A Release Generation Number (RGN) is associated with a volume, and an RGN is associated with a metadata track. Upon a release of storage space in the volume, the RGN associated with the volume is incremented. Upon an initialization of the metadata track, the RGN associated with the metadata track is updated to be consistent in generation with the RGN associated with the volume. Upon an access of the metadata track, the RGN of the metadata track is compared against the RGN of the volume, and the metadata track is initialized if a match is not found.
    Type: Application
    Filed: April 9, 2015
    Publication date: October 13, 2016
    Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Ellen J. GRUSY, Lokesh M. GUPTA, Kurt A. LOVRIEN, Kenneth W. TODD
  • Patent number: 9405669
    Abstract: For cache/data management in a computing storage environment, incoming data segments into a Non Volatile Storage (NVS) device of the computing storage environment are validated against a bitmap to determine if the incoming data segments are currently in use. Those of the incoming data segments determined to be currently in use are designated to the computing storage environment to protect data integrity.
    Type: Grant
    Filed: November 7, 2013
    Date of Patent: August 2, 2016
    Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Kevin J. Ash, Michael T. Benhase, Lokesh M. Gupta, Kenneth W. Todd
  • Patent number: 9342463
    Abstract: A processor, operable in a computing storage environment, for each rank in a storage management device in the computing storage environment, allocates a lower maximum count, and a higher maximum count, of Task Control Blocks (TCBs) to be implemented for performing a storage operation, and performs the storage operation using up to the lower maximum count of TCBs, yet only allows those TCBs above the lower maximum count to be allocated for performing the storage operation satisfying at least one criterion.
    Type: Grant
    Filed: September 20, 2012
    Date of Patent: May 17, 2016
    Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Kevin J. Ash, Michael T. Benhase, Lokesh M. Gupta, Kenneth W. Todd
  • Publication number: 20160132239
    Abstract: A storage controller receives a request to avoid extent conflict checking from a host application executing in a host that is coupled to the storage controller. In response to receiving a request, a host I/O process that executes in the storage controller to satisfy I/O requests from the host application opportunistically releases a track of an extent to a copy services process at an earliest point in time when the track of the extent is longer needed by the host I/O process and is needed by the copy services process.
    Type: Application
    Filed: January 15, 2016
    Publication date: May 12, 2016
    Inventors: Olympia Gluck, Beth A. Peterson, Kenneth W. Todd
  • Publication number: 20160085673
    Abstract: Mechanisms for concurrent update of data in cache with destage of data from the cache to disk by a processor device. A second copy of the data is established in the cache and on a cache directory. A first copy of the data and the second copy of the data are adjacently ordered in the cache directory. One of the first and second copies is held for an update operation so as to include a latest data modification, while the remaining copy concurrently is used for a destage operation to disk.
    Type: Application
    Filed: September 22, 2014
    Publication date: March 24, 2016
    Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Kevin J. ASH, Lokesh M. GUPTA, Kenneth W. TODD, Boyan ZHAO
  • Patent number: 9280485
    Abstract: A processor, operable in a computing storage environment, allocates portions of a Scatter Index Table (SIT) disproportionately between a larger portion dedicated for meta data tracks, and a smaller portion dedicated for user data tracks, and processes a storage operation through the disproportionately allocated portions of the SIT using an allocated number of Task Control Blocks (TCB).
    Type: Grant
    Filed: November 7, 2013
    Date of Patent: March 8, 2016
    Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Kevin J. Ash, Michael T. Benhase, Lokesh M. Gupta, Kenneth W. Todd
  • Publication number: 20160055091
    Abstract: A method for data management in a computing storage environment includes a processor device, operable in the computing storage environment, that divides a plurality of counters tracking write and discard storage operations through Non Volatile Storage (NVS) space into first, accurate, and second, fuzzy, groups where the first, accurate, group is one of updated on a per operation basis, while the second, fuzzy, group is one of updated on a more infrequent basis as compared to the first, accurate group.
    Type: Application
    Filed: November 4, 2015
    Publication date: February 25, 2016
    Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Kevin J. ASH, Michael T. BENHASE, Lokesh M. GUPTA, Kenneth W. TODD
  • Patent number: 9262092
    Abstract: A storage controller receives a request to avoid extent conflict checking from a host application executing in a host that is coupled to the storage controller. In response to receiving a request, a host I/O process that executes in the storage controller to satisfy I/O requests from the host application opportunistically releases a track of an extent to a copy services process at an earliest point in time when the track of the extent is longer needed by the host I/O process and is needed by the copy services process.
    Type: Grant
    Filed: January 30, 2014
    Date of Patent: February 16, 2016
    Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Olympia Gluck, Beth A. Peterson, Kenneth W. Todd
  • Patent number: 9208069
    Abstract: A system for data management in a computing storage environment includes a processor device, operable in the computing storage environment, that divides a plurality of counters tracking write and discard storage operations through Non Volatile Storage (NVS) space into first, accurate, and second, fuzzy, groups where the first, accurate, group is one of incremented and decremented per each write and discard storage operation, while the second, fuzzy, group is one of incremented and decremented on a more infrequent basis as compared to the first, accurate group.
    Type: Grant
    Filed: October 29, 2013
    Date of Patent: December 8, 2015
    Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Kevin J. Ash, Michael T. Benhase, Lokesh M. Gupta, Kenneth W. Todd