A disk drive. The disk drive includes a head-slider, an actuator, a ramp and a shroud. The head-slider is configured to fly above the disk. The actuator is configured to support the head-slider and to swing about a pivot shaft to move the head-slider in a radial direction of the disk. The actuator may also be configured to rest on the ramp in a stand-by position. The shroud includes an inner peripheral side surface and an outer peripheral side surface. The shroud is configured to control an air-stream which flows in a direction from the pivot shaft toward the head-slider. The inner peripheral side surface and the outer peripheral side surface are configured to blast the head-slider with the air-stream upon spinning the disk when the head-slider is positioned away from the disk in the stand-by position.