Abstract: A shock-resistant magnetic storage medium includes a circuit protection module coupled between a power converter and a magnetic disk assembly. The circuit protection module includes an acceleration sensor for generating output signals that indicate a falling state of the magnetic disk assembly, a switch operable so as to make or break a circuit connection between the power converter and the magnetic disk assembly, and a processor for controlling the switch to break the circuit connection between the power converter and the magnetic disk assembly based on the output signals from the acceleration sensor so as to interrupt supply of electric power to the magnetic disk assembly when the magnetic disk assembly is dropped.