The following background/phantom process commands are available.
:background-start command The :background-start command starts the background processor. The background command will not run unless the background processor has been started with this command. This command is automatically run by the coldstart procedure.
:background-stop command The :background-stop command stops the background processor. The background scheduler will no longer be able to run. Jobs can still be queued for execution when the scheduler is not running, but they will not start. This command has no effect on backgrounds that are already running. To stop those jobs, they must be logged off.
background command The background command starts a phantom job with rerun and delay facilities. If the command is executed with a TCL command attached, it behaves just like the zs command, except the output is captured in the backgrounds.output file. If the command is typed alone at TCL, then the user is prompted for questions pertaining to the job. If the first parameter after the command is a question mark, a list of already-created background jobs is presented for the user to modify.
startsched command The startsched command starts the phantom scheduler, which itself is a phantom process. The scheduler is normally started on the last phantom port of the system.
stopsched command The stopsched command halts the phantom scheduler process. No phantom processing can occur if the phantom scheduler is deactivated.