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).
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Patent number: 8948000Abstract: 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: GrantFiled: December 7, 2012Date of Patent: February 3, 2015Assignee: 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
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Patent number: 8880938Abstract: 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: GrantFiled: December 10, 2012Date of Patent: November 4, 2014Assignee: International Business Machines CorporationInventors: 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
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Patent number: 8880937Abstract: 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: GrantFiled: July 7, 2011Date of Patent: November 4, 2014Assignee: International Business Machines CorporationInventors: 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
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Patent number: 8874955Abstract: 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: GrantFiled: July 7, 2011Date of Patent: October 28, 2014Assignee: International Business Machines CorporationInventors: 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
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Patent number: 8745437Abstract: 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: GrantFiled: July 7, 2011Date of Patent: June 3, 2014Assignee: International Business Machines CorporationInventors: 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
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Patent number: 8745438Abstract: 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: GrantFiled: December 7, 2012Date of Patent: June 3, 2014Assignee: International Business Machines CorporationInventors: 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
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Patent number: 8677175Abstract: 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: GrantFiled: December 10, 2012Date of Patent: March 18, 2014Assignee: International Business Machines CorporationInventors: 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
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Patent number: 8607003Abstract: 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: GrantFiled: July 15, 2011Date of Patent: December 10, 2013Assignee: International Business Machines CorporationInventors: Patrick M. Bland, Dhruv M. Desai, Jimmy G. Foster, Sr., Makoto Ono
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Patent number: 8547825Abstract: 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: GrantFiled: July 7, 2011Date of Patent: October 1, 2013Assignee: International Business Machines CorporationInventors: 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
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Publication number: 20130019048Abstract: 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: ApplicationFiled: July 15, 2011Publication date: January 17, 2013Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATIONInventors: Patrick M. Bland, Dhruv M. Desai, Jimmy G. Foster, SR., Makoto Ono
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Publication number: 20130010639Abstract: 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: ApplicationFiled: July 7, 2011Publication date: January 10, 2013Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATIONInventors: 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
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Publication number: 20130013956Abstract: 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: ApplicationFiled: July 7, 2011Publication date: January 10, 2013Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATIONInventors: 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
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Publication number: 20130010419Abstract: 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: ApplicationFiled: July 7, 2011Publication date: January 10, 2013Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATIONInventors: 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
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Publication number: 20130013957Abstract: 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: ApplicationFiled: July 7, 2011Publication date: January 10, 2013Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATIONInventors: 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
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Publication number: 20120173653Abstract: 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: ApplicationFiled: December 30, 2010Publication date: July 5, 2012Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATIONInventors: Patrick M. Bland, John M. Borkenhagen, Thomas M. Bradicich, Dhruv M. Desai, Jimmy G. Foster, SR., Joseph J. Jakubowski, Randolph S. Kolvick, Makoto Ono
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Patent number: 7493503Abstract: 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: GrantFiled: December 22, 2005Date of Patent: February 17, 2009Assignee: International Business Machines CorporationInventors: 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
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Patent number: 7457976Abstract: 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: GrantFiled: November 22, 2005Date of Patent: November 25, 2008Assignee: International Business Machines CorporationInventors: Joesph E. Bolan, Thomas Brey, Dhruv M. Desai, Nickolas J. Gruendler, James E. Hughes, Edward J. Klodnicki, Sumeet Kochar, Gary R. Shippy
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Publication number: 20080189392Abstract: 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: ApplicationFiled: April 3, 2008Publication date: August 7, 2008Applicant: International Business Machines CorporationInventors: Alain Azagury, Michael Rodeh, Julian Satran, Ilan Shimony, T. Basil Smith, Dhruv M. Desai
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Patent number: 7143067Abstract: 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: GrantFiled: February 9, 1999Date of Patent: November 28, 2006Assignee: 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
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Patent number: 6754826Abstract: 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: GrantFiled: March 31, 1999Date of Patent: June 22, 2004Assignee: International Business Machines CorporationInventors: David Carroll Challener, Daryl Carvis Cromer, Dhruv M. Desai, Brandon Jon Ellison, Howard Locker, Andy Lloyd Trotter, James Peter Ward