Magnetic disc array machine

The utility model relates to a magnetic disk array machine, comprising a machine case, a controller, a plurality of magnetic disk drawers and a power supply which are arranged in the machine case. The utility model is characterized in that each of the magnetic disk drawers is not provided with a bracket, but is directly inserted into the machine case, and the back part of each of the magnetic disk drawers is a rail window. Magnetic disk channel lines adopt printed circuits formed on backboards, and a plurality of sockets and a plurality of plugs in series connected among the printed circuits are arranged on the magnetic disk lines. An identifying number control circuit of each of the magnetic disks is arranged in a respective installing box and is connected with the machine case, and is connected with an identifying number plug of each of the magnetic disks on the backboards by a respective jumper wire socket. The utility model causes connecting wires and middle transferring components to be reduced, and the structure is compact. The utility model improves the transmission speed, increases the reliability, and reduces the manufacturing cost more than 50%.