Fan control method and device for heat dissipation of storage system, and storage medium

The invention discloses a fan control method for heat dissipation of a storage system. After a state signal of a magnetic disk array is obtained, whether the state signal is a standby state signal ornot is judged firstly, and if the state signal is the standby state signal, a fan of a PSU power supply module is controlled to rotate through a predefined rule. Therefore, by adopting the fan controlmethod, when the magnetic disk array is in a standby state and the PSU power supply module provides the wake-up electric quantity for a main controller, the fan can be controlled to rotate, thus heatgenerated by all power devices of the PSU power supply module is dissipated through the air amount generated by fan rotation, the purpose of heat dissipation of all power in the PSU power supply module is achieved, and the PSU power supply module is prevented from burnout. In addition, the invention further discloses a fan control device for heat dissipation of the storage system, and a storage medium, and the effects are