The dimensions involved in modern hard drives are staggeringly small; the bit cells have dimensions in the tens of nanometers -- about as big as couple-year-old

The dimensions involved in modern hard drives are staggeringly small; the bit cells have dimensions in the tens of nanometers -- about as big as couple-year-old semiconductor feature sizes. It's not shocking that strong external vibration that induces resonances in the mechanical components causes dysfunction: the miracle is that hard drives function at all, even in the face of mild mechanical maltreatment.