Abstract: A hydraulic circuit for controlling a component of a hydraulic machine includes an actuator having a head end chamber and a rod end chamber, the actuator having an extended position for moving the component in a first direction and a retracted position for moving the component in a second direction. The hydraulic circuit includes a regeneration valve having an open position for fluidly connecting the head end chamber to the rod end chamber, a first control valve having a first open position, a second open position for fluidly connecting the regeneration valve to the return tank and substantially fluidly disconnecting the rod end chamber from the fluid source, and a closed position, and a second control valve having a first open position, a second open position, and a closed position for substantially fluidly disconnecting the rod end chamber from the fluid source.

Abstract: A hydraulic circuit for controlling a component of a hydraulic machine includes an actuator having a head end chamber and a rod end chamber, the actuator having an extended position for moving the component in a first direction and a retracted position for moving the component in a second direction. The hydraulic circuit includes a regeneration valve having an open position for fluidly connecting the head end chamber to the rod end chamber, a first control valve having a first open position, a second open position for fluidly connecting the regeneration valve to the return tank and substantially fluidly the rod end chamber from the fluid source, and a closed position, and a second control disconnecting valve having a first open position, a second open position, and a closed position for substantially fluidly disconnecting the rod end chamber from the fluid source.

Abstract: According to one embodiment, a method for managing one or more virtual machines includes generating a request for at least one performance characteristic for at least one virtual machine, the at least one virtual machine being associated with a processing group, the processing group including one or more processing modules; receiving a response to the generated request for at least one performance characteristic for the at least one virtual machine; automatically determining whether an increase in the number of processing modules included in the processing group is required, by analyzing the received response to the generated request; and, in response to a determination that an increase in the number of processing modules included in the processing group is required, automatically adding at least one processing module to the processing group.

Abstract: A method and an apparatus for dynamic memory resource management are provided. Memory activity information is collected for a virtual machine. Additional memory shares are dynamically allocated to the virtual machine, as needed, based on the memory activity information for the virtual machine and based on a specified priority of the virtual machine in order to properly adjust the total physical memory used by the virtual machine.

Abstract: A network of computer resources includes a plurality of heterogeneous nodes. Each node meets predetermined minimum standards. The nodes are interconnected, either directly or indirectly, to one another over a high-speed data network. A distributed service layer circulates status data pertaining to the plurality of heterogeneous nodes throughout the interconnection of nodes.

Abstract: Methods and apparatuses for dynamic CPU resource management are provided. CPU related information is collected for one or more virtual machines. CPU shares and affinity of a virtual machine are dynamically changed, as needed, based on the CPU usage information for the virtual machine and based on a specified priority of the virtual machine.