Example 2Edit online DEV2DD IODEVICE ADDRESS=(210,8),CUNUMBR=(1A0,1A1), X UNIT=3390,TIMEOUT=Y The preceding statement: Defines eight IBM® 3390 Direct Access Storage devices. Assigns the addresses 210-217 to the devices. Assigns the devices to the control unit numbers 1A0 and 1A1, which represent two storage directors of an IBM 3990 Storage Control.