A storage unit includes: a storage section containing an information processing apparatus; an intake section allowing intake of a cooling medium into the information processing apparatus for cooling the information processing apparatus; a discharge section receiving the cooling medium discharged from the information processing apparatus; a cooling medium flow generating section configured to control intake and discharge of the cooling medium; a partition section isolating the intake section and the discharge section from each other; an aperture formed in the partition section; a detector section configured to detect an inflow of the cooling medium, discharged from the discharge section, through the aperture; and a controller section configured to control the cooling medium flow generating section in accordance with a result of the detection of the detector section.