Abstract: A hard drive energy-saving control method is disclosed. The method includes: obtaining a historical working state of a hard drive in each preset time segment, where each preset time segment is each preset time segment in at least one statistic period; predicting a working state of the hard drive in a next time segment of the current time segment according to the historical working state of the hard drive; and selecting a corresponding energy-saving policy level according to the working state of the hard drive in the next time segment, and performing energy-saving control on the hard drive. Embodiments of the present invention solve the technical problem in the prior art that energy consumption of a hard drive is not correlated with actual service access traffic and the energy-saving efficiency is not optimum. The embodiments of the present invention improve the energy-saving efficiency of the hard drive.

Abstract: The present disclosure is applicable to the field of device energy-saving control, and provides a dynamic energy-saving method and apparatus for a PCIE device, and a communication system thereof. The method includes: obtaining a system energy-saving policy; and using a PCIE energy-saving module to control a PCIE device and a PCIE link to enter a corresponding linkage energy-saving state according to the obtained system energy-saving policy. In the present disclosure, a “D” state of a PCIE device is associated with an “L” state of a link into a new linkage energy-saving state, and the device and the link are controlled to enter the corresponding linkage energy-saving state according to a preset energy-saving policy, thereby improving energy-saving efficiency.

Abstract: A system power supply management apparatus and method, and a system with a power supply energy saving management function, where the apparatus includes: a board energy saving management module, a system energy saving management module, and a power supply energy saving management module, where, the board energy saving management module perform a board energy saving action, generate a board power variation corresponding to the board energy saving action, and send the board power variation to the system energy saving management module; and the system energy saving management module calculate, according to the board power variation, an expected power variation of the system, and control, according to the expected power variation of the system, the power supply energy saving management module to adjust an output power of a power module in the system.

Abstract: A hard drive energy-saving control method is disclosed. The method includes: obtaining a historical working state of a hard drive in each preset time segment, where each preset time segment is each preset time segment in at least one statistic period; predicting a working state of the hard drive in a next time segment of the current time segment according to the historical working state of the hard drive; and selecting a corresponding energy-saving policy level according to the working state of the hard drive in the next time segment, and performing energy-saving control on the hard drive. Embodiments of the present invention solve the technical problem in the prior art that energy consumption of a hard drive is not correlated with actual service access traffic and the energy-saving efficiency is not optimum. The embodiments of the present invention improve the energy-saving efficiency of the hard drive.

Abstract: The present disclosure is applicable to the field of device energy-saving control, and provides a dynamic energy-saving method and apparatus for a PCIE device, and a communication system thereof. The method includes: obtaining a system energy-saving policy; and using a PCIE energy-saving module to control a PCIE device and a PCIE link to enter a corresponding linkage energy-saving state according to the obtained system energy-saving policy. In the present disclosure, a “D” state of a PCIE device is associated with an “L” state of a link into a new linkage energy-saving state, and the device and the link are controlled to enter the corresponding linkage energy-saving state according to a preset energy-saving policy, thereby improving energy-saving efficiency.