[0:0:0:0]    disk    ATA      Crucial_CT1050MX R060  /dev/sda   /dev/sg0 
[1:0:0:0]    disk    ATA      HGST HTS721010A9 A3V0  /dev/sdb   /dev/sg1 
[2:0:0:0]    cd/dvd  HL-DT-ST DVDRAM GUE1N     AS00  /dev/sr0   /dev/sg2 
