Example 3

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DEVDTT IODEVICE ADDRESS=(180,8),CUNUMBR=1EE,            X
               UNIT=3490,STADET=N,UNITADD=00
The preceding statement:
  • Defines eight IBM® 3490 Magnetic Tape Subsystems.
  • Assigns the addresses 180-187 to the devices.
  • Assigns the devices to control unit number 1EE, which attaches to ESCON channel paths (TYPE=CNC).
  • Assigns unit addresses beginning at 00 to the devices for the control unit to recognize.

The default unit addresses for the devices are 80-87, and the control unit recognizes only unit addresses 00-0F. Specify the UNITADD keyword to make the device unit addresses 00-07.