A storage arrangement for a vehicle is disclosed. The method may involve illuminating the entire volume storage region of a photorefractive crystal with a laser to achieve bulk erasure, or may involve selective erasure of a portion of a single written page. The computing unit calculates a greater value as the maximum value of the acceleration as the depth of the liquid in the fluid vessel increases, and a smaller value as the maximum value of the acceleration as the depth of the liquid in the fluid vessel decreases.