International Business Machines Corporation

Other

Raymond J Harrington

Jeffrey R Biamonte

Timothy Matthew Trifilo

Eileen M Behrendt

Kevin Robert Covi

Gerald J Fahr

Malcolm Scott Ware

Freeman Leigh Rawson, Iii

Edward Joseph Seminaro

Andrew J Geissler

Gary Dean Anderson

Hye-Young McCreary

Daniel J Barus

Rohith Kottamangalam Ashok

Thomas M Brey

Matt Richard Hogstrom

Robert Philip Makowicki

Matthew J Sheard

Steven G Shevach

Peter Adam Wendling

Raymond A Longhi

Gary Franklin Goth

Todd Jon Rosedahl

Andreas Bieswanger

Robert B Schlak

Roger A Rippens

Martha Broyles

Frank E Bosco

Brian C Tucker

Donald J Swietek

Anthony Joseph Cozzolino

Derek Howard

Dale F Sorenson

Dale F Soreson

Brain C Tucker

Peter A Hein

Gerald Fahr

A partition that is executed by multiple processing nodes. Each node includes multiple cores and each of the cores has a frequency that can be set. A first frequency range is provided to the cores. Each core, when executing the identified partition, sets its frequency within the first frequency range. Frequency metrics are gathered from the cores running the partition by the nodes. The gathered frequency metrics are received and analyzed by a hypervisor that determines a second frequency range to use for the partition, with the second frequency range being different from the first frequency range. The second frequency range is provided to the cores at the nodes executing the identified partition. When the cores execute the identified partition, they use a frequencies within the second frequency range.

Partition level power management using fully asynchronous cores with software that has limited asynchronous support

A method, system and computer program product for managing and deploying physical and virtual environments across multiple hardware platforms. A single unit, referred to herein as a cloud construction block, contains both the hardware and software components used to build a cloud computing environment. By having such a single unit contain both the hardware and software components needed to build a cloud computing environment, the user no longer needs to purchase and integrate different hardware and software components. Furthermore, the cloud construction block contains modular pieces of hardware, such as compute hardware, memory hardware, storage hardware and network hardware, that are integrated with management software configured to manage both the hardware and the cloud computing environment in a seamlessly integrated package. Since there is a single management system, the management software allows the user to manage the modular pieces of hardware via a single user interface.

Unified cloud computing infrastructure to manage and deploy physical and virtual environments

A method, system, and computer usable program product for improving processor performance during power supply failure are provided in the illustrative embodiments. A throttled condition of a processor is detected in a data processing system. A voltage of the electrical power being provided to the processor is reduced. The processor is un-throttled. Additionally, a frequency of electrical power being provided to the processor may also be reduced. A determination is made whether a condition that caused the throttling has been corrected. In response to the condition having been corrected, the frequency is returned to normal frequency and the voltage is returned to normal voltage. The reducing the frequency operation and reducing the voltage operation may each be performed by distinct components communicating over a data network external to the data processing system.

Changing processor performance from a throttled state during a power supply failure

A method, system, and computer usable program product for power distribution considering cooling nodes in a data processing environment. A power demand of a data processing environment is determined for a period. The data processing environment includes a set of computing nodes and cooling nodes. A determination is made that the power demand will exceed a limit on electrical power available to the data processing environment for the period if the computing nodes and the cooling nodes in the data processing environment are operated in a first configuration. A first amount of power is redistributed from a cooling node in the data processing environment to a computing node in the data processing environment such that a temperature related performance threshold of a subset of computing nodes is at least met.

Power distribution considering cooling nodes

One or more multiport systems are used to facilitate servicing of asynchronous communications events. A multiport system, such as an open collector multiport system, receives from one of a plurality of source components an asynchronous communications event directed to a target component coupled to the plurality of source components. The multiport system is controlled to provide, at any given time, a communications path between a plurality of ports of the multiport system to service the asynchronous communications event. One or more multiport systems are used to forward the event from the source to the target.

One or more multiport systems to facilitate servicing of asynchronous communications events

A method and related apparatus for servicing an electrical/electronic device during power shut offs is provided. The apparatus comprises a service logic having a memory and control component for storing device information during normal device operation and one or more indicators driven by the memory and control component after power shut off to provide service signals. The service logic also includes an auxiliary energy source selectively engageable to provide auxiliary power to the memory and control component during power shut off and to enable providing of service signals through the indicator(s).

Component indicators used during extended power-off service

A protection circuit for a parallel power system having at least two parallel coupled voltage regulators is disclosed. The protection circuit includes at least two isolation control circuits, each control circuit being coupled to a respective voltage regulator. Each isolation control circuit includes a current sense circuit for sensing current polarity at an output of the respective voltage regulator, and a controller for automatically isolating the respective voltage regulator when an over-voltage condition exists at an output of the parallel power system and a positive current polarity is sensed at the output of the respective voltage regulator. The at least two isolation control circuits isolate only a voltage regulator having positive current outflow during the over-voltage condition. In one embodiment, each isolation control circuit further includes an over-voltage detection circuit for detecting when the over-voltage condition exists at the output of the parallel power system.

Over-voltage protection for voltage regulator modules of a parallel power system

Control of an AC-to-DC power supply assembly fed by a three-phase AC source is provided by: determining whether the power supply assembly includes greater than three single-phase power regulators feeding a common load, with multiple regulators being connected in parallel across a common phase of the AC source, and if so, summing currents provided by the regulators to the common load; and ascertaining whether the summed current is less than a predefined threshold, and if yes, operating the power supply assembly in a line balance mode to maintain power drawn on the phases of the AC source in balance, and if greater than the predefined threshold, operating the power supply assembly in a maximize power mode wherein power is provided to the common load without maintaining power drawn on the phases of the AC source in balance.

Control of an AC-to-DC power supply assembly fed by a three-phase AC source

An arbitration mechanism is provided for arbitrating between redundant controllers having outputs electrically connected together and provided as input to at least one device under control. The arbitration mechanism includes logic for automatically determining which controller of the redundant controllers is active controller, and a hardware output interlock for the redundant controllers to ensure that output controlled by only the active controller is enabled as input to the at least one device. The arbitration mechanism also includes logic for monitoring the active controller for failure, and upon detection of failure, for automatically switching active control to another controller of the redundant controllers transparent to the at least one device.

Arbitration system for redundant controllers, with output interlock and automatic switching capabilities

A system and method for providing an adapter for re-use of legacy DIMMS in a fully buffered memory environment. The system includes a memory adapter card having two rows of contacts along a leading edge of a length of the card. The rows of contacts are adapted to be inserted into a socket that is connected to a daisy chain high-speed memory bus via a packetized multi-transfer interface. The memory adapter card also includes a socket installed on the trailing edge of the card. In addition, the memory adapter card includes a hub device for converting the packetized multi-transfer interface into a parallel interface having timings and interface levels that are operable with a memory module having a parallel interface that is inserted into the socket. In addition, the hub device converts the packetized multi-transfer interface into a parallel interface having timings and interface levels that are operable with a memory module having a parallel interface that is inserted into the socket. The hub device also converts the parallel interface into the packetized multi-transfer interface.

System and method for providing an adapter for re-use of legacy DIMMS in a fully buffered memory environment

Employing one or more multiport systems to facilitate servicing of asynchronous communications events

A method for data access via an inter-integrated circuit (I2C) protocol. The method includes receiving an I2C read command at an I2C slave device, where the I2C read command is from an I2C master device. The method also includes reading stored data from a storage device in response to receiving an I2C read command. The stored data is at a first location in the storage device corresponding to a value in a register array pointer in the I2C slave device. The stored data is transmitted to the I2C master device in response to the reading. The method also includes receiving an I2C write command at the I2C slave device, where the I2C write command is from the I2C master device and the write command includes master data and a slave device register address. The master data is written to the storage device in response to receiving the I2C write command, with the master data being written at a second location in the storage device corresponding to the slave device register address.

System, method and storage medium for providing an inter-integrated circuit (I2C) slave with read/write access to random access memory

A method of providing arbitration for redundant controllers is provided, which includes: providing logic for automatically determining which controller of redundant controllers is active controller, wherein outputs of the redundant controllers are electrically hardwired together and provided as input to a device; and providing first and second hardware arbitration components for first and second controllers of the redundant controllers, each hardware arbitration component ensuring that outputs of the respective controller are enabled only when the associated controller is active controller. The first and second hardware arbitration components are separate hardware components which communicate and cooperate as a distributed hardware interlock mechanism that ensures outputs of only one controller are enabled at a time. More particularly, the hardware arbitration components each include a hardware state machine to enable/disable outputs of the associated controller and ensure that outputs of only the active controller are enabled as input to the device.

Arbitration method and system for redundant controllers, with output interlock and automatic switching capabilities

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Staatsburg, NY, United States of America

Raymond J Harrington