Abstract: Embodiments of the invention provide a system and method for housing electrical components of a high-density liquid cooling unit to liquid cool electrical components. The system includes a first electrical cabinet housing at least one electrical switch and a controller. The first electrical cabinet is swingable outward to open, and the first electrical cabinet opens while the high density liquid cooling system continues to operate to liquid cool electrical components. The system includes a second electrical cabinet housing a first motor drive and a second motor drive. The second electrical cabinet is accessible when the first electrical cabinet swings outward. One of the first motor drive and the second motor drive are replaceable while the high density liquid cooling unit continues to operate.

Abstract: Embodiments of the present disclosure provide a cooling system for electrical equipment. The cooling system includes a rack, a rear-door cooling unit, a liquid-to-air heat exchanger, a fan, a controller, and a power supply unit. The rear-door cooling unit is mounted to the rack, and is pivotable about a first axis between an open position and a closed position. The rear-door cooling unit defines a first side proximate the rack, and a second side opposite the first side. The liquid-to-air heat exchanger is mounted within the rear-door cooling unit. The fan, the controller, and the power supply unit are mounted to the rear-door cooling unit at the second side, and are accessible from the second side when the rear-door cooling unit is in the closed position.

Abstract: Embodiments of the disclosure provide a filtration assembly. The filtration assembly includes a fluid inlet, a fluid outlet, first and second flow lines positioned fluidly between the fluid inlet and the fluid outlet, a differential pressure sensor, and a controller. The first flow line includes a first canister filter, a first filter housing, and a first valve configured to move between a closed position and an open position. The second flow line includes a second canister filter, a second filter housing, and a second valve configured to move between a closed position and an open position. The controller is configured to receive, from the differential pressure sensor, a differential pressure value, and when the differential pressure value is greater than a threshold value, generate a signal to one of the first and second valves to close the respective valve.

Abstract: The disclosure provides a system and method for control of a pump in a coolant distribution unit (CDU) for cooling electronic components. In some aspects, the CDU includes a reservoir pump unit (RPU). Aspects of the method include setting a control priority to a first value indicative of a client mode in which a first local controller generates a first speed signal for a first pump in response to an instruction received from a master controller. The method includes determining a first interval since a last communication from the master controller. If the first interval exceeds a present dead time, the method includes setting the control priority of the first local controller to a second value indicative of an autonomous mode in which the first local controller generates the first speed signal for the first pump based on one or more parameters stored in a memory of the first local controller.

Abstract: Embodiments of the invention provide a high-density liquid cooling system including a cabinet with side panels on opposing sides of the cabinet. A heat exchanger is mounted within the cabinet, and is positioned at an oblique angle relative to the side panels. The heat exchanger is fluidly positioned along a liquid cooling circuit and includes a fluid inlet for receiving a fluid of the liquid cooling circuit. A fan assembly is mounted at a front of the cabinet and includes a plurality of fans configured to generate an air flow across a surface of the heat exchanger. A pumping unit within the cabinet includes a control unit and a first pump for inducing a flow of the fluid of the liquid cooling circuit. The control unit includes a first and second removable controller, and the control unit is electrically connected with the first pump and at least one fan.

Abstract: Embodiments of the invention provide a liquid fill kit system including a rollable cart having a frame and a plurality of wheels. A tank disposed within the frame. The fill kit further includes a fluid pump including a suction interface connection and a discharge interface connection. A filter assembly mounted within the frame. A fluid pressure regulator include a fluid outlet port, the fluid pressure regulator being configured to stop a flow of fluid when a pressure exceeds a fluid pressure threshold. In a first configuration, the suction interface connection is in fluid communication with the tank, and the discharge interface connection is in fluid communication with the filter unit, the pressure regulator, and the fluid outlet port to generate a flow of fluid through the fluid outlet port.

Abstract: Systems and methods are provided for a high density liquid cooling unit to cool electrical components. A replaceable pump unit (RPU) can include a pump configured to provide fluid flow to cool the electrical components (e.g., via direct liquid cooling of the electrical components by the pumped fluid and air-to-liquid cooling of the pumped fluid via a heat exchanger in fluid communication with the RPU). The RPU can be configured to be operated with or satisfy one or more RPU performance characteristics.

Abstract: Embodiments of the invention provide a high density liquid cooling system including a rack, primary loop piping including a primary inlet, a primary outlet, a primary loop filter, and a primary bypass valve, and secondary loop piping including a secondary inlet, a secondary outlet, a first pump, a first filter downstream of the first pump, and a secondary bypass valve. The system includes a heat exchanger having a first side and a second side. When the primary bypass valve is open, at least a portion of the fluid in the primary loop piping flows through the primary inlet and the primary outlet without traversing the heat exchanger, and when the secondary bypass valve is open, at least a portion of the fluid in the secondary loop piping flows through the secondary inlet and the secondary outlet without traversing the heat exchanger.

Abstract: Embodiments of the invention provide a high density liquid cooling system and various monitoring and control methods. Some methods include calculating a heat transfer efficiency of a heat exchanger based on a temperature difference and calculating a total heat rejection value based on the heat transfer efficiency. Some methods include increasing a secondary flow rate in a secondary coolant loop as a maximum allowable pressure is approached to extend an operating time period and avoid thermal shut down of the high density liquid cooling system.

Abstract: Embodiments of the invention provide a system and method for providing parallel flow paths for a high density liquid cooling system. The system includes a coolant distribution unit including primary loop piping and secondary loop piping. The secondary loop piping includes a first flow path including a first pump, a first filter, and a first shutoff valve. The secondary loop piping includes a second flow path including a second pump, a second filter, and a second shutoff valve. The system includes an inlet y-pipe upstream of both of the first flow path and the second flow path and an outlet y-pipe downstream of both of the first flow path and the second flow path. Each of the first and second shutoff valves alternate between an open position and a closed position.

Abstract: Embodiments of the invention provide a system and method for housing electrical components of a high-density liquid cooling unit to liquid cool electrical components. The system includes a first electrical cabinet housing at least one electrical switch and a controller. The first electrical cabinet is swingable outward to open, and the first electrical cabinet opens while the high density liquid cooling system continues to operate to liquid cool electrical components. The system includes a second electrical cabinet housing a first motor drive and a second motor drive. The second electrical cabinet is accessible when the first electrical cabinet swings outward. One of the first motor drive and the second motor drive are replaceable while the high density liquid cooling unit continues to operate.

Abstract: A method for servicing a section of a first flow line of a redundant flow line system with a second flow line in a closed-loop liquid cooling system. The method can include draining liquid from the first flow line through a liquid transfer assembly and servicing the section of the first flow line. The method can also include transferring liquid from the second flow line to the first flow line through the liquid transfer assembly and decoupling the liquid transfer assembly from the first flow line and the second flow line. The method can also include coupling the liquid transfer assembly to and between the first flow line and the second flow line.

Abstract: Aspects of the present invention provide a solution for managing memory. A method according to an embodiment includes: prior to any storage of a page in the memory: analyzing the page to compute an identifier for the page based on characteristics of the page; and comparing the computed identifier with other identifiers of other pages currently stored in the memory to find an identical page, wherein a match between the computed identifier and the identifier of one of the other pages currently stored in memory indicates that the page corresponding to the computed identifier and the other page corresponding to the matching identifier are identical; storing, in the case that an identical page is found, a link to the identical page in a portion of the memory; and storing, in case that the identical page is not found, the page in the portion of the memory and storing the identifier.

Abstract: Aspects of the present invention provide a solution for managing memory. A method according to an embodiment includes: prior to any storage of a page in the memory: analyzing the page to compute an identifier for the page based on characteristics of the page; and comparing the computed identifier with other identifiers of other pages currently stored in the memory to find an identical page, wherein a match between the computed identifier and the identifier of one of the other pages currently stored in memory indicates that the page corresponding to the computed identifier and the other page corresponding to the matching identifier are identical; storing, in the case that an identical page is found, a link to the identical page in a portion of the memory; and storing, in case that the identical page is not found, the page in the portion of the memory and storing the identifier.

Abstract: Aspects of the present invention provide a solution for managing memory. A method according to an embodiment includes: prior to any storage of a page from a guest in the memory: analyzing the page to compute an identifier for the page; and comparing the computed identifier with other identifiers of other pages currently stored in the memory to find an identical page, wherein a match between the computed identifier and the identifier of one of the other pages currently stored in memory indicates that the page corresponding to the computed identifier and the other page corresponding to the matching identifier are identical; and storing, in the case that an identical page is found, a link to the identical page in a portion of the memory allocated to the guest.

Abstract: Aspects of the present invention provide a solution for managing memory. A method according to an embodiment includes: prior to any storage of a page from a guest in the memory: analyzing the page to compute an identifier for the page; and comparing the computed identifier with other identifiers of other pages currently stored in the memory to find an identical page, wherein a match between the computed identifier and the identifier of one of the other pages currently stored in memory indicates that the page corresponding to the computed identifier and the other page corresponding to the matching identifier are identical; and storing, in the case that an identical page is found, a link to the identical page in a portion of the memory allocated to the guest.

Abstract: Methods, system, and computer program products are provided for managing server power consumption in a data center. Embodiments include detecting, by a circuit monitoring interposer, a type of a power circuit that is currently coupled to the circuit monitoring interposer; determining a power capacity of the power circuit based on the type of the power circuit; receiving, by the circuit monitoring interposer, a power consumption server measurement from each server monitoring interposer of a plurality of server monitoring interposers, each power consumption server measurement corresponding to a server of the plurality of servers; determining a total power consumption of the power circuit in dependence upon a total of the power consumption server measurements; and determining whether the total power consumption exceeds the power capacity, and if the total power consumption of the power circuit exceeds the power capacity, instructing one or more servers to reduce their power consumption.

Abstract: Aspects of the present invention provide a solution for managing memory in a shared virtual computing environment. A page that is to be stored in the memory of the host in the virtual computing environment is obtained from a guest. The page is analyzed to compute an identifier for the page. This identifier is compared with other identifiers of other pages that are currently stored in the memory to determine whether the identical page is already stored in the memory. If the identical page is currently stored in the memory, a link to that page is stored in the portion of the memory that is allocated to the guest.

Abstract: A chassis for a plurality of computers for use in a data center, the chassis at least one extensible fin, the fin either extensible perpendicularly from the front of the chassis or extensible parallel with the front of the chassis.

Abstract: A computer chassis cooling sidecar for cooling one or more computers in a chassis of computers in a data center, the sidecar including an air intake chamber and a chassis delivery chamber, the air intake chamber having a first opening at a bottom end for receiving air from beneath the data center through perforated tiles in the floor of the data center located on the side of the computer chassis, the air intake chamber having at the top end a directional vane shaped to direct airflow from the side of the chassis to a chassis delivery chamber; wherein the chassis delivery chamber resides in front or back of the chassis and has an opening to receive air from the air intake chamber and an opening to deliver the received air to the front or back of the computer chassis.