Patents by Inventor Hans-Helge Lehmann

Hans-Helge Lehmann 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: 8386659
    Abstract: A configuration adaptation layer (CAL) for I/O devices such as I/O adapters is provided. This configuration adaptation layer (CAL) explicitly provides a mapping between adapter functions and adapter resources in a way such that it is senseable in-band by the computer system using the adapter, e.g., by a virtual machine monitor.
    Type: Grant
    Filed: September 28, 2010
    Date of Patent: February 26, 2013
    Assignee: International Business Machines Corporation
    Inventors: Michael Jung, Hans-Helge Lehmann, Elke G. Nass, Christoph Raisch
  • Publication number: 20110078337
    Abstract: A configuration adaptation layer (CAL) for I/O devices such as I/O adapters is provided. This configuration adaptation layer (CAL) explicitly provides a mapping between adapter functions and adapter resources in a way such that it is senseable in-band by the computer system using the adapter, e.g., by a virtual machine monitor.
    Type: Application
    Filed: September 28, 2010
    Publication date: March 31, 2011
    Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Michael Jung, Hans-Helge Lehmann, Elke G. Nass, Christoph Raisch
  • Patent number: 7587531
    Abstract: An input/output subsystem is configured as a plurality of input/output subsystem images, each of which appears to a program as an independent input/output subsystem. An input/output subsystem image is identified by an input/output subsystem image identifier, which is used by various programs to designate the particular input/output subsystem image for which an I/O operation is to be performed. An input/output subsystem image includes, for instance, one or more input/output paths. An input/output path of an input/output subsystem image is identified by an input/output path identifier, as well as a physical input/output path identifier.
    Type: Grant
    Filed: October 29, 2007
    Date of Patent: September 8, 2009
    Assignee: International Business Machines Corporation
    Inventors: Frank W. Brice, Jr., Janet R. Easton, Charles W. Gainey, Jr., Steven G. Glassen, Beth Glendening, Marten J. Halma, Jeffrey P. Kubala, Hans-Helge Lehmann, Tan Lu, Allan S. Meritt, Kenneth J. Oakes, Charles E. Shapley, John S. Trotter, Leslie W. Wyman, Harry M. Yudenfriend
  • Publication number: 20080263238
    Abstract: An input/output subsystem is configured as a plurality of input/output subsystem images, each of which appears to a program as an independent input/output subsystem. An input/output subsystem image is identified by an input/output subsystem image identifier, which is used by various programs to designate the particular input/output subsystem image for which an I/O operation is to be performed. An input/output subsystem image includes, for instance, one or more input/output paths. An input/output path of an input/output subsystem image is identified by an input/output path identifier, as well as a physical input/output path identifier.
    Type: Application
    Filed: October 29, 2007
    Publication date: October 23, 2008
    Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Frank W. Brice, Janet R. Easton, Charles W. Gainey, Steven G. Glassen, Beth Glendening, Marten J. Halma, Jeffrey P. Kubala, Hans-Helge Lehmann, Tan Lu, Allan S. Meritt, Kenneth J. Oakes, Charles E. Shapley, John S. Trotter, Leslie W. Wyman, Harry M. Yudenfriend
  • Patent number: 7290070
    Abstract: An input/output subsystem is configured as a plurality of input/output subsystem images, each of which appears to a program as an independent input/output subsystem. An input/output subsystem image is identified by an input/output subsystem image identifier, which is used by various programs to designate the particular input/output subsystem image for which an I/O operation is to be performed. An input/output subsystem image includes, for instance, one or more input/output paths. An input/output path of an input/output subsystem image is identified by an input/output path identifier, as well as a physical input/output path identifier.
    Type: Grant
    Filed: May 12, 2003
    Date of Patent: October 30, 2007
    Assignee: International Business Machines Corporation
    Inventors: Frank W. Brice, Jr., Janet R. Easton, Charles W. Gainey, Jr., Steven G. Glassen, Beth Glendening, Marten J. Halma, Jeffrey P. Kubala, Hans-Helge Lehmann, Tan Lu, Allan S. Meritt, Kenneth J. Oakes, Charles E. Shapley, John S. Trotter, Leslie W. Wyman, Harry M. Yudenfriend
  • Patent number: 7277968
    Abstract: Input/output (I/O) communications subadapters, such as subchannels, of an I/O subsystem are dedicated to components, such as I/O devices, of the I/O subsystem. The subadapters provide information about the associated components, in response to the execution of I/O instructions. To enhance I/O connectivity, a plurality of sets of I/O subadapters is provided to an operating system image. This allows programs of the operating system image to access a same component via different sets of I/O communications subadapters. Further, it enables an operating system image to use more than 64 k subchannels.
    Type: Grant
    Filed: January 23, 2004
    Date of Patent: October 2, 2007
    Assignee: International Business Machines Corporation
    Inventors: Frank W. Brice, Jr., Janet R. Easton, Charles W. Gainey, Jr., Jeffrey P. Kubala, Hans-Helge Lehmann, Tan Lu, Ugochukwu Njoku-Charles, Kenneth J. Oakes, Dale F. Riedy, Jr., Charles E. Shapley, Gustav E. Sittmann, Leslie W. Wyman, Harry M. Yudenfriend
  • Patent number: 7174550
    Abstract: A communications adapter is shared by a plurality of input/output (I/O) subsystem images of an I/O subsystem of a central processing complex. To enable the sharing, the communications adapter is configured to a plurality of I/O paths of the plurality of I/O subsystem images. An I/O subsystem may have one or more shared communications adapters.
    Type: Grant
    Filed: May 12, 2003
    Date of Patent: February 6, 2007
    Assignee: International Business Machines Corporation
    Inventors: Frank W. Brice, Jr., Charles W. Gainey, Jr., Beth Glendening, Marten J. Halma, Jeffrey P. Kubala, Hans-Helge Lehmann, Tan Lu, Allan S. Meritt, Ugochukwo Njoku-Charles, Kenneth J. Oakes, Charles E. Shapley, John S. Trotter, Leslie W. Wyman, Harry M. Yudenfriend
  • Patent number: 7130938
    Abstract: An input/output subsystem of a computing environment is configured as a plurality of input/output subsystem images, each of which appears to a program as an independent input/output subsystem. An input/output subsystem image includes one or more communications adapters used for communicating within the computing environment. A communications adapter is identified by hardware of the computing environment by using a first identifier, and it is identified by a program of the computing environment by using a second identifier. The identifiers can be of different sizes.
    Type: Grant
    Filed: May 12, 2003
    Date of Patent: October 31, 2006
    Assignee: International Business Machines Corporation
    Inventors: Frank W. Brice, Jr., Charles W. Gainey, Jr., Steven G. Glassen, Marten J. Halma, David W. Hollar, Jeffrey P. Kubala, Hans-Helge Lehmann, Tan Lu, Michael G. Melendy, Kenneth J. Oakes, Charles E. Shapley, Robert A. Smith, John S. Trotter, Leslie W. Wyman, Harry M. Yudenfriend
  • Patent number: 6996638
    Abstract: An input/output subsystem is configured as a plurality of input/output subsystem images, each of which appears to a program as an independent input/output subsystem. An input/output subsystem image is identified by an input/output subsystem image identifier, which is used by various programs to designate the particular input/output subsystem image for which an I/O operation is to be performed. An operating system is provided with access to a plurality of input/output subsystem images of the input/output subsystem. One or more controls are provided to the operating system image to enable the operating system image to access the plurality of input/output subsystem images.
    Type: Grant
    Filed: May 12, 2003
    Date of Patent: February 7, 2006
    Assignee: International Business Machines Corporation
    Inventors: Frank W. Brice, Jr., Scott M. Carlson, Janet R. Easton, Charles W. Gainey, Jr., Marten J. Halma, Jeffrey P. Kubala, Hans-Helge Lehmann, Tan Lu, Kenneth J. Oakes, Charles E. Shapley, Leslie W. Wyman, Harry M. Yudenfriend
  • Publication number: 20050165969
    Abstract: Input/output (I/O) communications subadapters, such as subchannels, of an I/O subsystem are dedicated to components, such as I/O devices, of the I/O subsystem. The subadapters provide information about the associated components, in response to the execution of I/O instructions. To enhance I/O connectivity, a plurality of sets of I/O subadapters is provided to an operating system image. This allows programs of the operating system image to access a same component via different sets of I/O communications subadapters. Further, it enables an operating system image to use more than 64k subchannels.
    Type: Application
    Filed: January 23, 2004
    Publication date: July 28, 2005
    Applicant: International Business Machines Corporation
    Inventors: Frank Brice, Janet Easton, Charles Gainey, Jeffrey Kubala, Hans-Helge Lehmann, Tan Lu, Ugochukwu Njoku-Charles, Kenneth Oakes, Dale Riedy, Charles Shapley, Gustav Sittmann, Leslie Wyman, Harry Yudenfriend
  • Publication number: 20040230721
    Abstract: An input/output subsystem is configured as a plurality of input/output subsystem images, each of which appears to a program as an independent input/output subsystem. An input/output subsystem image is identified by an input/output subsystem image identifier, which is used by various programs to designate the particular input/output subsystem image for which an I/O operation is to be performed. An input/output subsystem image includes, for instance, one or more input/output paths. An input/output path of an input/output subsystem image is identified by an input/output path identifier, as well as a physical input/output path identifier.
    Type: Application
    Filed: May 12, 2003
    Publication date: November 18, 2004
    Applicant: International Business Machines Corporation
    Inventors: Frank W. Brice, Janet R. Easton, Charles W. Gainey, Steven G. Glassen, Beth Glendening, Marten J. Halma, Jeffrey P. Kubala, Hans-Helge Lehmann, Tan Lu, Allan S. Meritt, Kenneth J. Oakes, Charles E. Shapley, John S. Trotter, Leslie W. Wyman, Harry M. Yudenfriend
  • Publication number: 20040230713
    Abstract: A communications adapter is shared by a plurality of input/output (I/O) subsystem images of an I/O subsystem of a central processing complex. To enable the sharing, the communications adapter is configured to a plurality of I/O paths of the plurality of I/O subsystem images. An I/O subsystem may have one or more shared communications adapters.
    Type: Application
    Filed: May 12, 2003
    Publication date: November 18, 2004
    Applicant: International Business Machines Corporation
    Inventors: Frank W. Brice, Charles W. Gainey, Beth Glendening, Marten J. Halma, Jeffrey P. Kubala, Hans-Helge Lehmann, Tan Lu, Allan S. Meritt, Ugochukwo Njoku-Charles, Kenneth J. Oakes, Charles E. Shapley, John S. Trotter, Leslie W. Wyman, Harry M. Yudenfriend
  • Publication number: 20040230722
    Abstract: An input/output subsystem of a computing environment is configured as a plurality of input/output subsystem images, each of which appears to a program as an independent input/output subsystem. An input/output subsystem image includes one or more communications adapters used for communicating within the computing environment. A communications adapter is identified by hardware of the computing environment by using a first identifier, and it is identified by a program of the computing environment by using a second identifier. The identifiers can be of different sizes.
    Type: Application
    Filed: May 12, 2003
    Publication date: November 18, 2004
    Applicant: International Business Machines Corporation
    Inventors: Frank W. Brice, Charles W. Gainey, Steven G. Glassen, Marten J. Halma, David W. Hollar, Jeffrey P. Kubala, Hans-Helge Lehmann, Tan Lu, Michael G. Melendy, Kenneth J. Oakes, Charles E. Shapley, Robert A. Smith, John S. Trotter, Leslie W. Wyman, Harry M. Yudenfriend
  • Publication number: 20040230714
    Abstract: An input/output subsystem is configured as a plurality of input/output subsystem images, each of which appears to a program as an independent input/output subsystem. An input/output subsystem image is identified by an input/output subsystem image identifier, which is used by various programs to designate the particular input/output subsystem image for which an I/O operation is to be performed. An operating system is provided with access to a plurality of input/output subsystem images of the input/output subsystem. One or more controls are provided to the operating system image to enable the operating system image to access the plurality of input/output subsystem images.
    Type: Application
    Filed: May 12, 2003
    Publication date: November 18, 2004
    Applicant: International Business Machines Corporation
    Inventors: Frank W. Brice, Scott M. Carlson, Janet R. Easton, Charles W. Gainey, Marten J. Halma, Jeffrey P. Kubala, Hans-Helge Lehmann, Tan Lu, Kenneth J. Oakes, Charles E. Shapley, Leslie W. Wyman, Harry M. Yudenfriend
  • Patent number: 6785747
    Abstract: A method and system for flexibly and efficiently assigning channel path identifiers (CHPIDs) used by operating system software in computer systems to identify the communication path to I/O devices via channels. To avoid wasted CHPIDs, which may be limited in number, CHPIDs are assigned only to channels which are installed on and configured to the computer system. The CHPIDs may be re-assigned concurrently with ongoing system operations via a user interface and/or an imported, pre-defined CHPID mapping.
    Type: Grant
    Filed: November 30, 2000
    Date of Patent: August 31, 2004
    Assignee: International Business Machines Corporation
    Inventors: Hans-Helge Lehmann, Charles E. Shapley, Robert A. Smith
  • Patent number: 6647515
    Abstract: A method and apparatus for determining common usage of elements among at least two channels in a data processing system having an arbitrary hardware element hierarchy including multiple channel paths over which data is transmitted. An internally executed initialization program builds a bit mask for channel paths to be compared wherein the bit masks describe the hierarchy of the hardware elements in the channel paths to be compared. A compare program provides a comparison result whose value reflects the impact of the failure of hardware elements that are common to the channel path being compared. The comparison results contains multiple bits, with set bits representing each element which is common to the hardware element common to the channel paths being compared. The impact of a failure of a common hardware element is greater the more significant the bit position of that component resides in the comparison results.
    Type: Grant
    Filed: October 2, 2000
    Date of Patent: November 11, 2003
    Assignee: International Business Machines Corporation
    Inventors: Eugene P. Hefferon, Hans-Helge Lehmann, William J. Rooney, Harry M. Yudenfriend
  • Publication number: 20020065963
    Abstract: A method and system for flexibly and efficiently assigning channel path identifiers (CHPIDs) used by operating system software in computer systems to identify the communication path to I/O devices via channels. To avoid wasted CHPIDs, which may be limited in number, CHPIDs are assigned only to channels which are installed on and configured to the computer system. The CHPIDs may be re-assigned concurrently with ongoing system operations via a user interface and/or an imported, pre-defined CHPID mapping.
    Type: Application
    Filed: November 30, 2000
    Publication date: May 30, 2002
    Inventors: Hans-Helge Lehmann, Charles E. Shapley, Robert A. Smith