Sun Microsystems, Inc.

Oracle America, Inc.

Oracle International Corporation

Kenneth Clayton Gross

Aleksey M Urmanov

Kalyanaraman Vaidyanathan

Ali Heydari

David K McElfresh

Ramakrishna C Dhanekula

Chien Ouyang

Sanjeev Raghavendrachar Sondur

Ayse K Coskun

Lawrence G Votta

David Belanger

Eric Tran-Le

Kalyan Vaidyanathan

Lawrence G Votta, Jr

Michael J Wookey

Anton A Bougaev

Emrys J Williams

Keith A Whisnant

Clifford B Willis

Steven J Furuta

Kenneth Kitlas

Sajjit Thampy

Jay Kevin Osborn

Vince P Hileman

Douglas B Meyer

Nagaraj P Mitty

Charles E Kinney

John J Cooley

Ronald J Melanson

Lee Winick

Vatsal Bhardwaj

George Popescu

Yuri Langer

Quyen T Vu

David M Fishman

Su-Jaen Huang

Ramakrishna Dhanekula

Eugenio J Schuster Rosa

Brett Cheong-Wei Ong

A method for determining parameters for one or more air-cooling mechanisms for a computer system. A current operating temperature of a system component within a particular system is determined. A maximum operating temperature of the system component is obtained. A difference value between the maximum operating temperature and the current operating temperature is computed. A parameter of an air-cooling mechanism of an environment, which includes the system component, is selected and modified based on the difference value between the maximum operating temperature and the current operating temperature.

Determining parameters of air-cooling mechanisms

A system for controlling energy usage in a server having a processor, where the system includes a memory for storing energy cost information, and a controller for determining a transaction rate for the processor. The controller is also for determining a cumulative of energy expended by the server based on the determined transaction rate for each of a number of available power level states (P-states) for operation of the processor, and for selecting one of the available P-states for operation of the processor based on the determined cumulative energy expended and the stored energy cost information.

System and method for controlling energy usage in a server

A method for identifying missing components of a computer system may include receiving telemetry signals characterizing a current configuration of the computer system and determining a cross power spectral density signature of at least some of the telemetry signals. The method may further include comparing information about the determined cross power spectral density signature with information about a predetermined cross power spectral density signature to determine whether a component is missing within the computer system.

Computer component detection system and method

A passive heat sink for cooling an electronic component such as a high-performance processor. The heat sink includes a shell with a surface that is positionable adjacent a heat generating surface of the electronic component. The shell includes a heat exchanger portion with cooling fins extending outward and positioned in a fan-provided airflow. A generator compartment is provided within the shell with a generator vessel for containing an absorbent, and the generator compartment is maintained at a pressure lower than ambient. The generator compartment conducts heat away from the electronic component to the absorbent in the generator vessel. An absorber compartment, at a pressure lower than the generator compartment, is provided within the shell above the generator compartment, and, in use, an absorption refrigeration cycle contained within the shell is activated by heat from the electronic component. A bubble pump moves absorbent from the generator compartment to the absorber compartment.

Modular absorption heat sink devices for passive cooling of servers and other electronics

A method for identifying a degraded fan measures acoustic data from an operating datacenter fan. A motor rotation frequency and a vane passing frequency are determined from the acoustic data. Amplitudes of the frequencies are determined from the acoustic data. If the amplitude of the motor rotation frequency is greater than the amplitude of the vane passing frequency, then it is determined that the fan is degraded.

Identifying degraded fans in datacenters

A method for performing server monitoring via condition tracking and state identification of server components. In one embodiment, the method includes continuously monitoring a server, the server having a plurality of components, determining whether a component of the plurality of components has entered a maintenance state, and triggering a maintenance action for the component if it has entered the maintenance state.

Method and system for identification of decisive action state of server components via telemetric condition tracking

Some embodiments of the present invention provide a system that attenuates noise from a fan exhaust of a computer system. During operation, the system monitors the noise from the fan exhaust and calculates a frequency spectrum of the noise from the monitored noise. Next, the system generates an antiphase spectrum from the frequency spectrum and generates a flow of air which exhibits a property of the antiphase spectrum. Finally, the system directs the flow of air into the fan exhaust so that the noise is attenuated by a reduction of turbulence in the fan exhaust by the flow of air.

Method and apparatus for attenuating fan noise through turbulence mitigation

Provided is an apparatus and method to control fan noise in a computer server room. An exemplary apparatus includes one or more transducers coupled to one or more walls of a plurality of system racks and one or more active noise control units, wherein the one or more active noise control units send control signals to the one or more transducers to emit a transducer acoustic wave. It also includes a microphone installed near a location in the computer server room where cooling fan noise needs to be controlled, wherein the microphone collects fan noise signals emitted from running fans on the plurality of system racks in the computer server room and sends the collected fan noise signals to the one or more active noise control units to allow the frequency and intensity of the transducer acoustic wave to be substantially equal to a frequency and an intensity of the fan noise and at about 180 degrees out of phase with the fan noise to reduce or to eliminate the fan noise.

Active noise control rack enclosures

A cooling device includes a base having cells. A pipe is coupled to the base for each of the cells. The pipes include passages that carry fluid toward the cell and away from the cell. A magnetohydrodynamic pump system coupled to the pipe circulates an electrically conductive cooling fluid within the passages and the cell. An orifice may emits jets of fluid into the cells. A controller coupled to the cooling device may independently control flow rates in two or more cells of the cooling device. The controller may receive information from the temperature sensors on the base of the cooling device for use in controlling the flow rates in the cells.

Multichannel cooling system with magnetohydrodynamic pump

Some embodiments of the present invention provide a system that includes a first hard disk drive (HDD) and a second HDD. Within this system, the first HDD is coupled to the second HDD in a non-parallel configuration, which reduces rotational vibration transmitted between the first HDD and the second HDD.

Method and apparatus for reducing coupled hard disk drive vibration

A method for inferring an altitude of a computing device, involving monitoring variable data associated with a plurality of variables measured within the computing device, inferring the altitude of the computing device using the measured plurality of variables in a multivariate correlation function, and controlling operation of the computing device based on the inferred altitude.

Inferring the altitude of computing devices using multivariate pattern recognition of telemetry signals

A cooling system for a heat producing component includes a base having two or more cells. The cells may include microchannel passages. A pump system may be coupled to the base. The pump system may circulate fluid independently in each of two or more of the cells. The pump system may include an array of two more magnetohydrodynamic pumps. Each magnetohydrodynamic pump may provide fluid to a different cell. A controller may control a flow rate in each one of cell of the cooling system independently one or more of other cells of the cooling system.

Intelligent microchannel cooling

Growing community of inventors

San Diego, CA, United States of America

Kenneth Clayton Gross