HP OpenVMS Systems Documentation

HP OpenVMS DCL Dictionary

Makes an allocated device available to other processes (but does not deassign any logical name associated with the device). DEALLOCATE does not deallocate devices that are in use.

Format

DEALLOCATE device-name[:]

Parameter

device-name[:]

Name of the device to be deallocated. The device name can be a physical device name or a logical name that is not in use. On a physical device name, the controller defaults to A and the unit to 0. This parameter is incompatible with the /ALL qualifier.

Qualifier

/ALL

Deallocates all devices currently allocated by your process that are not in use. This qualifier is incompatible with the device-name parameter.

Examples

$ DEALLOCATE  DMB1:
      

In this example, the DEALLOCATE command deallocates unit 1 of the RK06/RK07 devices on controller B.

$ ALLOCATE   MT:   TAPE
%DCL-I-ALLOC, _MTB1:  allocated
   .
   .
   .
$ DEALLOCATE  TAPE:
      

In this example, the ALLOCATE command requests that any magnetic tape drive be allocated and assigns the logical name TAPE to the device. The response to the ALLOCATE command indicates the successful allocation of the device MTB1. The DEALLOCATE command specifies the logical name TAPE to release the tape drive.

$ DEALLOCATE/ALL
      

In this example, the DEALLOCATE command deallocates all devices that are currently allocated.