An information processing apparatus has a first storage unit and a second storage unit and operates in one of a normal power mode and a power saving mode. When the information processing apparatus is operating in the power saving mode, if an error occurs in a storage process, the power mode of the information processing apparatus is switched to the normal power mode and the storage process is executed again. The storage process is a process in which when the first storage unit is replaced with a new storage unit, information equivalent to that stored in the first storage unit is stored in the new storage unit.