A device manages the storage of data in at least one storage device of a first type and in a storage device of a second type, the at least one storage device of the first type being physically distinct from the storage device of the second type. The device partitions data to be stored into blocks of data, determines redundancies generated by an error detection code for each block of data, stores blocks of data in the at least one storage device of the first type, the storage device(s) of the first type being compliant with an avionic quality assurance level of a given quality level, and stores redundancies in the storage device of the second type, the storage device of the second type being compliant with an avionic quality assurance level that is higher than the avionic quality assurance level of the storage device(s) of first type.