51
Gerd K Bayer, David F Craddock, Thomas A Gregg, Michael Jung, Andreas Kohler, Elke G Nass, Oliver G Schlag, Peter K Szwed: Switch failover control in a multiprocessor computer system. International Business Machines Corporation, Cantor Colburn, Steven Chiu, March 18, 2014: US08677180 (6 worldwide citation)

A system and a method for failover control comprising: maintaining a primary device table entry (DTE) in a first table activated for a first adapter in communication with a first processor node having a first root complex via a first switch assembly and maintaining a secondary DTE in standby for a s ...


52
Richard K Errickson, Welela Haileselaissie, Leornard W Helmer Jr, John S Houston, An Zhu: Discovery of a virtual topology in a multi-tasking multi-processor environment. International Business Machines Corporation, Cantor Colburn, Steven Chiu, June 14, 2011: US07962564 (6 worldwide citation)

A computer program product, apparatus and method for identifying processors in a multi-tasking multiprocessor network, the computer program product including a tangible storage medium readable by a processing circuit and storing instructions for execution by the processing circuit for performing a m ...


53
Levi A Campbell, Richard C Chu, Milnes P David, Michael J Ellsworth Jr, Madusudan K Iyengar, Roger R Schmidt, Robert E Simons: Air-side economizer facilitating liquid-based cooling of an electronics rack. International Business Machines Corporation, Steven Chiu Esq, Kevin P Radigan Esq, Heslin Rothenberg Farley & Mesiti P C, February 17, 2015: US08955347 (6 worldwide citation)

A cooling apparatus and method are provided for cooling an electronic subsystem of an electronics rack. The cooling apparatus includes a local cooling station, which has a liquid-to-air heat exchanger and ducting for directing a cooling airflow across the heat exchanger. A cooling subsystem is assoc ...


54
Casimer M DeCusatis, Thomas A Gregg: Open fiber control and loss of light propagation in time division multiplexed inter-system channel link. International Business Machines Corporation, Steven Chiu, November 2, 2010: US07826745 (6 worldwide citation)

A method and apparatus for transmitting signals from a plurality of input channels over a TDM optical network, where each of the input channels contains an optical data signal and an electrical control signal containing control information relating to the optical data signal. In accordance with the ...


55
Michael J Cadigan Jr, Howard M Haynie, Jeffrey M Turner: Ethernet virtualization using hardware control flow override. International Business Machines Corporation, Steven Chiu, November 16, 2010: US07836198 (6 worldwide citation)

A method of Ethernet virtualization using hardware control flow override. The method comprises providing, at a first logical entity of a first programmable logic device, control signals used for performing control-flow, selectively routing the control signals to a second programmable logic device th ...


56
Thomas A Gregg: Transparent PCI-based multi-host switch. International Business Machines Corporation, Steven Chiu Esq, Blanche E Schiller Esq, Heslin Rothenberg Farley & Mesiti P C, July 12, 2011: US07979621 (6 worldwide citation)

A transparent PCI-based multi-host switch. A switch is configured with multiple north facing ports to couple the switch to multiple hosts. The multi-host switch can be included in a variety of switch configurations, including configurations having one multi-host switch, configurations having multipl ...


57
Vincenzo Condorelli, Thomas J Dewkett, Michael D Hocker, Tamas Visegrady: Communications channel interposer, method and program product for verifying integrity of untrusted subsystem responses to a request. International Business Machines Corporation, Steven Chiu Esq, Kevin P Radigan Esq, Heslin Rothenberg Farle & Mesiti P C, April 5, 2011: US07921234 (6 worldwide citation)

In a communications channel coupled to multiple duplicated subsystems, a method, interposer and program product are provided for verifying integrity of subsystem responses. Within the communications channel, a first checksum is calculated with receipt of a first response from a first subsystem respo ...


58
Michael J Cadigan Jr, Joel Goldman, Howard M Haynie, Bruce H Ratcliff, Jeffrey M Turner: Ethernet virtualization using a network packet alteration. International Business Machines Corporation, Steven Chiu, November 30, 2010: US07843919 (6 worldwide citation)

A method of Ethernet virtualization using network packet alteration. The method comprises receiving network packets from a host destined for transmission over a network, checking whether the network packets have headers, if the packets do not have headers, forming a first portion of the header using ...


59
Robert J Brenneman, Eli M Dow, Thomas D Fitzsimmons, Jessie Yu: Performing virtual machine live migration within a threshold time by adding available network path in multipath network. INTERNATIONAL BUSINESS MACHINES CORPORATION, Cantor Colburn, Steven Chiu, May 10, 2016: US09336042 (6 worldwide citation)

An estimated time to migrate a VM from a source hypervisor to a target hypervisor is calculated. The estimated time is compared to a threshold time and based on the estimated time meeting the threshold time, a migration of the VM from the source hypervisor to the target hypervisor via the network is ...


60
Eli M Dow, Frank R LeFevre Jr, Ray Mansell, Jessie Yu: Method, computer program product, and hardware product for supporting virtual machine guest migration overcommit. International Business Machines Corporation, Cantor Colburn, Steven Chiu, December 4, 2012: US08327355 (6 worldwide citation)

Virtual machine guest migration overcommit is supported by providing a virtual machine with an unschedulable resource that is not available for system scheduling. The unschedulable resource may, but need not, be provided in the form of a memory buffer, or one or more network resources, or one or mor ...