Storage system and storage device

A storage system comprising:

• a plurality of data input and output parts through which data is inputted and outputted;
• a data storing part that stores the data inputted and outputted through the plurality of data input and output parts;
• a range information storing part that stores range information showing ranges of a storing area of the data storing part which are respectively allocated to the plurality of data input and output parts;
• a first control part controlling the data storing part to read and write the data in accordance with the range information stored in the range information storing part, and that rewrites the range information stored by the range information storing part to predetermined range information in a case where a prescribed signal is inputted from the data input and output part;
• and
• a plurality of second control parts that are provided correspondingly to the plurality of data input and output parts to input and output the data between the plurality of data input and output parts and the second control parts, and that input the prescribed signal to the data input and output parts in a prescribed case.