Output Device Name field
Specify the name of the disk volume to which the save set will be
restored. You can specify either a logical device name (such as
USER$DISK) or a physical device name (such as DKA0).
The device must not be allocated by any other user and must be
different than the input device name when you are saving or restoring
a volume. For more information, see "Physical and logical device
names" in the "Concepts ..." help topic.
Press PF3 to display a box that lists known disk devices. Use the
arrow keys to scroll through the list of devices and press Return or
Enter to choose a device. Choosing a device from this box places the
list entry in the Device Name field. If you do not want to select a
disk device, press PF3 again (or Ctrl/Z) to cause the box to
disappear.