An information processor includes a set information storage unit storing evacuation residual quantity information representing an evacuation residual quantity as a residual quantity of the battery that corresponds to electric power necessary for executing a data evacuation process for storing data, stored in a memory of the information processor, onto a nonvolatile recording medium, a battery residual quantity detecting unit detecting the battery residual quantity of the battery, a load information collecting unit acquiring load information representing an electric load of the information processor, an evacuation residual quantity setting unit setting the evacuation residual quantity based on the load information collected by the load information collecting unit, and controls the set information storage unit to store the evacuation residual quantity information representing the set evacuation residual quantity, and an evacuation control unit controlling execution of the data evacuation process.