Work entries

Work entries identify the sources where jobs can enter a subsystem. Specific types of work entries are used for different types of jobs. Work entries are part of the subsystem description.

The following information describes the different types of work entries and how to manage them. There are five types of work entries; autostart job entries, communication entries, job queue entries, prestart job entries, and workstation entries.

• Autostart job entries
  Autostart job entries identify the autostart jobs to start as soon as the subsystem starts. When a subsystem starts, the system allocates several items and starts autostart and prestart jobs before it is ready for work.
• Communications entries
  The communications work entry identifies to the subsystem the sources for the communications job it will process. The job processing begins when the subsystem receives a communications program start request from a remote system and an appropriate routing entry is found for the request.
• Job queue entries
  Job queue entries in a subsystem description specify from which job queues a subsystem is to receive jobs. When the subsystem is started, the subsystem tries to allocate each job queue defined in the subsystem job queue entries.
• Prestart job entries
  You define the prestart job by using a prestart job entry. A prestart job entry does not affect the device allocation or program start request assignment.
• Prestart jobs for servers
  In the prestart job model there is one primary listening job, generally called the daemon job or listener job, and multiple server jobs that process the client requests. The daemon job listens on the port for connection requests. When a new connection is received, the daemon does some general work, then gives the socket descriptor to a waiting prestart server job.
• Workstation entries
  An interactive job is a job that starts when a user signs on to a display station and ends when the user signs off. For the job to run, the subsystem searches for the job description, which may be specified in the workstation entry or the user profile.