In this parameter the dismount command for the automatic dismounting of a tape is defined. For
backup_dev_type = tape_box the command is called locally; for backup_dev_type = pipe_box it is called on a machine defined in the parameter read_fifo_cmd .Default value: none (for
backup_dev_type = tape_box | pipe_box this parameter must be defined in the initialization profile).dismount_cmd = "<dismount_cmd> $ $ [$ ]"
<dismount_cmd>: Command name, for example dismount.csh
Do not forget to enclose the parameter specifications composed of several values in double quotes. The $ characters stand, in the following order, for:

The dismount or mount command must be created by the user in the form of a program, a shell script or a batch file.
If the dismount command has been performed successfully the exit code 0 is displayed. No other output is displayed. The only possible outputs not recognized as errors are messages beginning with the characters ‘#INFO ’.
See also:
Backup with Jukebox/Autoloader Mount / Dismount Command. mount_cmd mount_par_file