Patents by Inventor Dhruv M. Desai

Dhruv M. Desai 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: 8948000
    Abstract: Techniques are disclosed for managing a switch fabric. In one embodiment, a server system is provided that includes a midplane, one or more server cards, switch modules and a management controller. The midplane may include a fabric interconnect for a switch fabric. The one or more server cards and the switch modules may be operatively connected to the midplane. The switch modules may be configured to switch network traffic for the one or more server cards. The management controller may be configured to manage the switch modules via the fabric interconnect.
    Type: Grant
    Filed: December 7, 2012
    Date of Patent: February 3, 2015
    Assignee: Lenovo Enterprise Solutions (Singapore) Pte. Ltd.
    Inventors: William J. Armstrong, John M. Borkenhagen, Martin J. Crippen, Dhruv M. Desai, David R. Engebretsen, Philip R. Hillier, III, William G. Holland, James E. Hughes, James A. O'Connor, Pravin S. Patel, Steven M. Tri
  • Patent number: 8880938
    Abstract: Techniques are disclosed for reducing impact of a repair action in a switch fabric. In one embodiment, a server system is provided that includes a first interposer card that operatively connects one or more server cards to a midplane. The first interposer card may include a switch module that switches network traffic for the one or more server cards. The first interposer card may be hot-swappable from the midplane, and the one or more server cards may be hot-swappable from the first interposer card.
    Type: Grant
    Filed: December 10, 2012
    Date of Patent: November 4, 2014
    Assignee: International Business Machines Corporation
    Inventors: William J. Armstrong, John M. Borkenhagen, Martin J. Crippen, Dhruv M. Desai, David R. Engebretsen, Philip R. Hillier, III, William G. Hollan, James E. Hughes, Bradley D. McCredie, James A. O'Connor, Steven M. Tri
  • Patent number: 8880937
    Abstract: Techniques are disclosed for reducing impact of a repair action in a switch fabric. In one embodiment, a server system is provided that includes a first interposer card that operatively connects one or more server cards to a midplane. The first interposer card may include a switch module that switches network traffic for the one or more server cards. The first interposer card may be hot-swappable from the midplane, and the one or more server cards may be hot-swappable from the first interposer card.
    Type: Grant
    Filed: July 7, 2011
    Date of Patent: November 4, 2014
    Assignee: International Business Machines Corporation
    Inventors: William J. Armstrong, John M. Borkenhagen, Martin J. Crippen, Dhruv M. Desai, David R. Engebretsen, Philip R. Hillier, III, William G. Holland, James E. Hughes, Bradley D. McCredie, James A. O'Connor, Steven M. Tri
  • Patent number: 8874955
    Abstract: Techniques are disclosed for reducing impact of a switch failure in a switch fabric. In one embodiment, a server system is provided that includes a midplane, one or more server cards and one or more switch cards. The midplane may include a fabric interconnect for a switch fabric. The one or more server cards may be coupled with the midplane, where each server card is hot-swappable from the midplane. The one or more switch cards may also be coupled with the midplane, where each switch card is also hot-swappable from the midplane. Each switch card includes one or more switch modules, and each switch module is configured to switch network traffic for at least one server card.
    Type: Grant
    Filed: July 7, 2011
    Date of Patent: October 28, 2014
    Assignee: International Business Machines Corporation
    Inventors: William J. Armstrong, John M. Borkenhagen, Martin J. Crippen, Dhruv M. Desai, David R. Engebretsen, Philip R. Hillier, III, William G. Holland, James E. Hughes, James A. O'Connor, Steven M. Tri
  • Patent number: 8745437
    Abstract: Techniques are disclosed for reducing impact of a switch failure and/or a repair action in a switch fabric. In one embodiment, a server system is provided that includes a first interposer card that operatively connects one or more server cards to a midplane. The first interposer card may include a switch module that switches network traffic for the one or more server cards. The first interposer card may be hot-swappable from the midplane, and the one or more server cards may be hot-swappable from the first interposer card. The server system may further include an interconnect between the first interposer card and a second interposer card.
    Type: Grant
    Filed: July 7, 2011
    Date of Patent: June 3, 2014
    Assignee: International Business Machines Corporation
    Inventors: William J. Armstrong, John M. Borkenhagen, Martin J. Crippen, Dhruv M. Desai, David R. Engebretsen, Philip R. Hillier, III, William G. Holland, James E. Hughes, James A. O'Connor, Steven M. Tri
  • Patent number: 8745438
    Abstract: Techniques are disclosed for reducing impact of a switch failure in a switch fabric. In one embodiment, a server system is provided that includes a midplane, one or more server cards and one or more switch cards. The midplane may include a fabric interconnect for a switch fabric. The one or more server cards may be coupled with the midplane, where each server card is hot-swappable from the midplane. The one or more switch cards may also be coupled with the midplane, where each switch card is also hot-swappable from the midplane. Each switch card includes one or more switch modules, and each switch module is configured to switch network traffic for at least one server card.
    Type: Grant
    Filed: December 7, 2012
    Date of Patent: June 3, 2014
    Assignee: International Business Machines Corporation
    Inventors: William J. Armstrong, John M. Borkenhagen, Martin J. Crippen, Dhruv M. Desai, David R. Engebretsen, Philip R. Hillier, III, William G. Holland, James E. Hughes, James A. O'Connoor, Steven M. Tri
  • Patent number: 8677175
    Abstract: Techniques are disclosed for reducing impact of a switch failure and/or a repair action in a switch fabric. In one embodiment, a server system is provided that includes a first interposer card that operatively connects one or more server cards to a midplane. The first interposer card may include a switch module that switches network traffic for the one or more server cards. The first interposer card may be hot-swappable from the midplane, and the one or more server cards may be hot-swappable from the first interposer card. The server system may further include an interconnect between the first interposer card and a second interposer card.
    Type: Grant
    Filed: December 10, 2012
    Date of Patent: March 18, 2014
    Assignee: International Business Machines Corporation
    Inventors: William J. Armstrong, John M. Borkenhagen, Martin J. Crippen, Dhruv M. Desai, David R. Engebretsen, Philip R. Hillier, III, William G. Holland, James E. Hughes, James A. O'Connor, Steven M. Tri
  • Patent number: 8607003
    Abstract: Methods, apparatuses, and computer program products for memory access to a dual in-line memory module (DIMM) form factor flash memory are provided. Embodiments include receiving, by a controller from a processor through cacheable memory in the processor, a read request; transmitting, by the controller, the read request to the DIMM form factor flash memory; polling, by the controller, a read queue in the DIMM form factor flash memory until data is ready for the read request; copying from the DIMM form factor flash memory, by the controller, the data corresponding to the read request to a read queue in the controller; transmitting, by the controller on an interface between the controller and the processor, an invalidate command for the cacheable memory; and in response to receiving the invalidate command, reading by the processor the data stored in the read queue in the controller.
    Type: Grant
    Filed: July 15, 2011
    Date of Patent: December 10, 2013
    Assignee: International Business Machines Corporation
    Inventors: Patrick M. Bland, Dhruv M. Desai, Jimmy G. Foster, Sr., Makoto Ono
  • Patent number: 8547825
    Abstract: Techniques are disclosed for managing a switch fabric. In one embodiment, a server system is provided that includes a midplane, one or more server cards, switch modules and a management controller. The midplane may include a fabric interconnect for a switch fabric. The one or more server cards and the switch modules may be operatively connected to the midplane. The switch modules may be configured to switch network traffic for the one or more server cards. The management controller may be configured to manage the switch modules via the fabric interconnect.
    Type: Grant
    Filed: July 7, 2011
    Date of Patent: October 1, 2013
    Assignee: International Business Machines Corporation
    Inventors: William J. Armstrong, John M. Borkenhagen, Martin J. Crippen, Dhruv M. Desai, David R. Engebretsen, Philip R. Hillier, III, William G. Holland, James E. Hughes, James A. O'Connor, Pravin S. Patel, Steven M. Tri
  • Publication number: 20130019048
    Abstract: Methods, apparatuses, and computer program products for memory access to a dual in-line memory module (DIMM) form factor flash memory are provided. Embodiments include receiving, by a controller from a processor through cacheable memory in the processor, a read request; transmitting, by the controller, the read request to the DIMM form factor flash memory; polling, by the controller, a read queue in the DIMM form factor flash memory until data is ready for the read request; copying from the DIMM form factor flash memory, by the controller, the data corresponding to the read request to a read queue in the controller; transmitting, by the controller on an interface between the controller and the processor, an invalidate command for the cacheable memory; and in response to receiving the invalidate command, reading by the processor the data stored in the read queue in the controller.
    Type: Application
    Filed: July 15, 2011
    Publication date: January 17, 2013
    Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Patrick M. Bland, Dhruv M. Desai, Jimmy G. Foster, SR., Makoto Ono
  • Publication number: 20130010639
    Abstract: Techniques are disclosed for managing a switch fabric. In one embodiment, a server system is provided that includes a midplane, one or more server cards, switch modules and a management controller. The midplane may include a fabric interconnect for a switch fabric. The one or more server cards and the switch modules may be operatively connected to the midplane. The switch modules may be configured to switch network traffic for the one or more server cards. The management controller may be configured to manage the switch modules via the fabric interconnect.
    Type: Application
    Filed: July 7, 2011
    Publication date: January 10, 2013
    Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: WILLIAM J. ARMSTRONG, JOHN M. BORKENHAGEN, MARTIN J. CRIPPEN, DHRUV M. DESAI, DAVID R. ENGEBRETSEN, PHILIP R. HILLIER, III, WILLIAM G. HOLLAND, JAMES E. HUGHES, JAMES A. O'CONNOR, PRAVIN S. PATEL, STEVEN M. TRI
  • Publication number: 20130013956
    Abstract: Techniques are disclosed for reducing impact of a repair action in a switch fabric. In one embodiment, a server system is provided that includes a first interposer card that operatively connects one or more server cards to a midplane. The first interposer card may include a switch module that switches network traffic for the one or more server cards. The first interposer card may be hot-swappable from the midplane, and the one or more server cards may be hot-swappable from the first interposer card.
    Type: Application
    Filed: July 7, 2011
    Publication date: January 10, 2013
    Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: WILLIAM J. ARMSTRONG, JOHN M. BORKENHAGEN, MARTIN J. CRIPPEN, DHRUV M. DESAI, DAVID R. ENGEBRETSEN, PHILIP R. HILLIER, III, WILLIAM G. HOLLAND, JAMES A. HUGHES, BRADLEY D. MCCREDIE, JAMES A. O'CONNOR, STEVEN M. TRI
  • Publication number: 20130010419
    Abstract: Techniques are disclosed for reducing impact of a switch failure and/or a repair action in a switch fabric. In one embodiment, a server system is provided that includes a first interposer card that operatively connects one or more server cards to a midplane. The first interposer card may include a switch module that switches network traffic for the one or more server cards. The first interposer card may be hot-swappable from the midplane, and the one or more server cards may be hot-swappable from the first interposer card. The server system may further include an interconnect between the first interposer card and a second interposer card.
    Type: Application
    Filed: July 7, 2011
    Publication date: January 10, 2013
    Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: WILLIAM J. ARMSTRONG, JOHN M. BORKENHAGEN, MARTIN J. CRIPPEN, DHRUV M. DESAI, DAVID R. ENGEBRETSEN, PHILIP R. HILLIER, III, WILLIAM G. HOLLAND, JAMES E. HUGHES, JAMES A. O'CONNOR, STEVEN M. TRI
  • Publication number: 20130013957
    Abstract: Techniques are disclosed for reducing impact of a switch failure in a switch fabric. In one embodiment, a server system is provided that includes a midplane, one or more server cards and one or more switch cards. The midplane may include a fabric interconnect for a switch fabric. The one or more server cards may be coupled with the midplane, where each server card is hot-swappable from the midplane. The one or more switch cards may also be coupled with the midplane, where each switch card is also hot-swappable from the midplane. Each switch card includes one or more switch modules, and each switch module is configured to switch network traffic for at least one server card.
    Type: Application
    Filed: July 7, 2011
    Publication date: January 10, 2013
    Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: WILLIAM J. ARMSTRONG, JOHN M. BORKENHAGEN, MARTIN J. CRIPPEN, DHRUV M. DESAI, DAVID R. ENGEBRETSEN, PHILIP R. HILLIER, III, WILLIAM G. HOLLAND, JAMES E. HUGHES, JAMES A. O'CONNOR, STEVEN M. TRI
  • Publication number: 20120173653
    Abstract: A computer program product and computer implemented method are provided for migrating a virtual machine between servers. The virtual machine is initially operated on a first server, wherein the first server accesses the virtual machine image over a network at a memory location within fabric attached memory. The virtual machine is migrated from the first server to a second server by flushing data to the virtual machine image from cache memory associated with the virtual machine on the first server and providing the state and memory location of the virtual machine to the second server. The virtual machine may then operate on the second server, wherein the second server accesses the virtual machine image over the network at the same memory location within the fabric attached memory without copying the virtual machine image.
    Type: Application
    Filed: December 30, 2010
    Publication date: July 5, 2012
    Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Patrick M. Bland, John M. Borkenhagen, Thomas M. Bradicich, Dhruv M. Desai, Jimmy G. Foster, SR., Joseph J. Jakubowski, Randolph S. Kolvick, Makoto Ono
  • Patent number: 7493503
    Abstract: A method and system are disclosed to enable and control power reduction in a blade/chassis system. A “maximum power reduction” attribute is stored in the VPD of the blade (or can otherwise be input to or retrieved or calculated by the management entity). The management module of the chassis in which the blades and power supplies are located uses this information to manage the power reduction of blades when the system is operating in an over-subscription mode and a power supply fails. If throttling is required, the system knows the amount of power reduction available for each blade and controls the throttling by spreading it out among the blades in the system so that, ideally, no blade will cease operation altogether.
    Type: Grant
    Filed: December 22, 2005
    Date of Patent: February 17, 2009
    Assignee: International Business Machines Corporation
    Inventors: Alfredo Aldereguia, Brian E. Bigelow, Dhruv M. Desai, Scott N. Dunham, Nickolas J. Gruendler, William G. Holland, James E. Hughes, Randolph S. Kolvick, Challis L. Purrington, Michael L. Scollard, Gary R. Shippy
  • Patent number: 7457976
    Abstract: A method and system are disclosed to enable and control over-subscription in a blade/chassis system and to provide the capability to recover in the event of the loss of a redundant power supply. An over-subscription policy is determined by a system administrator and is set in the chassis management module. Information regarding the maximum power allocation needed for each blade being powered by the power supply system is identified by the blade and stored in its VPD or otherwise made available to the chassis management module. The management module of the chassis in which the blades and power supplies are located uses this information to manage the subscription of blades and the over-subscription of blades when appropriate. If throttling is required, the system also allows a predetermined blade priority to be used to identify which blades will be reduced in power.
    Type: Grant
    Filed: November 22, 2005
    Date of Patent: November 25, 2008
    Assignee: International Business Machines Corporation
    Inventors: Joesph E. Bolan, Thomas Brey, Dhruv M. Desai, Nickolas J. Gruendler, James E. Hughes, Edward J. Klodnicki, Sumeet Kochar, Gary R. Shippy
  • Publication number: 20080189392
    Abstract: A computer system includes a local area network (LAN) and a plurality of computers. Each of the computers includes at least one central processing unit (CPU) and a LAN interface, which is coupled to communicate over the LAN, while the computers include no on-board input/output (I/O) device controllers other than the LAN interface. One or more peripheral devices are coupled to communicate with the computers over the LAN.
    Type: Application
    Filed: April 3, 2008
    Publication date: August 7, 2008
    Applicant: International Business Machines Corporation
    Inventors: Alain Azagury, Michael Rodeh, Julian Satran, Ilan Shimony, T. Basil Smith, Dhruv M. Desai
  • Patent number: 7143067
    Abstract: A system and method for installing a customized set of software on a personal computer, tailored to the requirements of the prospective user and avoiding unnecessary software and attendant license fees. Software (all that may be desired) in unusable form is loaded onto the personal computer then selected software (that which a particular user may require and/or desire) is converted (decompressed and/or decrypted) to produce usable versions of the selected software while the other software may be erased, if desired, to free up space in storage. The selection of software is done on the user's function (department and/or mission) and may be supplemented by a user selection from a menu, based on a selection utility.
    Type: Grant
    Filed: February 9, 1999
    Date of Patent: November 28, 2006
    Assignee: Lenovo (Singapore) Pte. Ltd.
    Inventors: Richard W. Cheston, Daryl C. Cromer, Richard A. Dayan, Dhruv M. Desai, Jan M. Janick, Howard J. Locker, David B. Rhoades, James P. Ward
  • Patent number: 6754826
    Abstract: A data processing system and method are disclosed for providing an access connector which limits access to a network to only authorized client computer systems. The network is controlled by a server computer system. The access connector is provided for physically coupling a client computer system to the network. The access connector is physically coupled to the network. Prior to permitting the client computer system to attempt to establish a client communication link with the network, the client computer system attempts to authenticate itself to the server computer system. In response to the client computer system being unable to authenticate itself to the server computer system, the access connector prohibits the client computer system from establishing a client communication link between the client computer system and the network.
    Type: Grant
    Filed: March 31, 1999
    Date of Patent: June 22, 2004
    Assignee: International Business Machines Corporation
    Inventors: David Carroll Challener, Daryl Carvis Cromer, Dhruv M. Desai, Brandon Jon Ellison, Howard Locker, Andy Lloyd Trotter, James Peter Ward