Abstract: A storage device including a first memory that stores a plurality of pieces of data a second memory that stores first state information indicating a state of update of the plurality of pieces of data, and a processor coupled to the first memory and the second memory and the processor configured to receive a update request for the plurality of pieces of data stored in the first memory, update a part of the plurality of pieces of data corresponding to the update request in response to an update of a second storage device coupled to the storage device, and update the first state information in response to the update of the plurality of pieces of data.

Abstract: An information processing device included in a plurality of information processing devices of an information processing system, the information processing device including configured to acquire pieces of load information indicating loads on the plurality of information processing devices from each of the plurality of information processing devices, perform a first aggregation processing that aggregates the acquired pieces of load information, determine whether the first aggregation processing is to be distributed based on the acquired pieces of load information, when the information processing device determines that the first aggregation processing is to be distributed, transmit, to at least two information processing devices included in plurality of information processing devices, an execution request of second aggregation processing, the second aggregation processing being aggregation processing for each of a plurality of device groups obtained by dividing the plurality of information processing devices by

Abstract: An information processing apparatus is included in an information processing system, constructed with a plurality of information processing apparatuses and configured to aggregate state information indicating a state of each of the plurality of information processing apparatuses which is acquired by the each information processing apparatus.

Abstract: An information processing device included in a plurality of information processing devices of an information processing system, the information processing device including configured to acquire pieces of load information indicating loads on the plurality of information processing devices from each of the plurality of information processing devices, perform a first aggregation processing that aggregates the acquired pieces of load information, determine whether the first aggregation processing is to be distributed based on the acquired pieces of load information, when the information processing device determines that the first aggregation processing is to be distributed, transmit, to at least two information processing devices included in plurality of information processing devices, an execution request of second aggregation processing, the second aggregation processing being aggregation processing for each of a plurality of device groups obtained by dividing the plurality of information processing devices by

Abstract: A storage device including a first memory that stores a plurality of pieces of data a second memory that stores first state information indicating a state of update of the plurality of pieces of data, and a processor coupled to the first memory and the second memory and the processor configured to receive a update request for the plurality of pieces of data stored in the first memory, update a part of the plurality of pieces of data corresponding to the update request in response to an update of a second storage device coupled to the storage device, and update the first state information in response to the update of the plurality of pieces of data.

Abstract: An information processing system includes a processing device; and a storage device that is accessed by the processing device. The storage device includes a storage unit, and a processor coupled to the storage unit. The processor is configured to build a virtual device, determine an I/O request to the virtual device from the processing device, as a copy request to the storage unit, and execute a copy instruction to the storage unit in response to the copy request.

Abstract: An air-conditioning apparatus forms a refrigerating cycle with a refrigerant heater and a compressor having two cylinders. The apparatus simultaneously carries out a refrigerant heating operation and a heat pump operation when a required heating capacity is high, and when the required heating capacity is low, only the heat pump operation. This operation technique helps reduce the size of the apparatus and expand a variable width of heating capacity. The apparatus also has a defrosting unit for defrosting an outdoor heat exchanger during the heat pump operation.