Makes an allocated device available to other processes (but does not
deassign any logical name associated with the device).

Format
 DEALLOCATE [device-name]

Additional information available:

ParametersQualifiers

device-name
 Name of the device to be deallocated. The device name can be a
 physical device name or a logical name. On a physical device name, the
 controller defaults to A and the unit to 0. Incompatible with the /ALL
 qualifier.

Additional information available:

/ALL

 Deallocates all devices currently allocated by your process.
 Incompatible with the device-name parameter.