In this module, we will delve into advanced job scheduling techniques in Control Language (CL). Job scheduling is a critical aspect of system management, allowing you to automate tasks, manage workloads, and ensure that jobs are executed at the right time and in the correct sequence.

1. Job Scheduling Basics: Review of basic job scheduling concepts.
2. Advanced Scheduling Commands: Introduction to advanced commands for job scheduling.
3. Job Dependencies: Managing job dependencies and sequences.
4. Job Prioritization: Setting job priorities and managing job queues.
5. Scheduling Recurring Jobs: Automating recurring tasks.
6. Monitoring and Managing Scheduled Jobs: Tools and techniques for monitoring and managing scheduled jobs.

Before diving into advanced techniques, let's briefly review the basics of job scheduling in CL.

• SBMJOB (Submit Job): Submits a job to a job queue.
• WRKJOB (Work with Job): Displays information about jobs.
• WRKJOBQ (Work with Job Queue): Displays and manages job queues.

This command submits the job MYJOB to the job queue QBATCH to run the program MYPGM.

The ADDJOBSCDE command is used to schedule jobs to run at specific times and dates.

This command schedules MYJOB to run the program MYPGM every Monday at 12:00 PM starting from December 25, 2023.

The CHGJOBSCDE command modifies an existing job schedule entry.

This command changes the scheduled time of MYJOB to 2:00 PM.

The RMVJOBSCDE command removes a job schedule entry.

This command removes the scheduled job MYJOB.

Managing job dependencies ensures that jobs are executed in the correct order.

In this example, MYJOB2 can be set to run only after MYJOB1 completes by using job descriptions and dependencies.

Setting job priorities helps manage the execution order of jobs in a job queue.

This command submits MYJOB with a priority of 5. Lower numbers indicate higher priority.

Automating recurring tasks is essential for efficient system management.

This command schedules MYJOB to run MYPGM daily at 12:00 PM starting from December 25, 2023.

The WRKJOBSCDE command displays and manages job schedule entries.

This command opens a panel where you can view, change, and remove job schedule entries.

The DSPJOBLOG command displays the job log, which is useful for monitoring job execution and troubleshooting.

This command displays the job log for MYJOB.

1. Objective: Schedule a job to run a backup program every Sunday at 2:00 AM.
2. Steps:
   • Create a CL program named BACKUPPGM.
   • Use the ADDJOBSCDE command to schedule the job.

• Incorrect Date/Time Format: Ensure the date and time are in the correct format (YYYY-MM-DD and HH:MM:SS).
• Job Queue Availability: Verify that the job queue specified is available and not held.
• Job Dependencies: Clearly define job dependencies to avoid execution issues.

In this module, we covered advanced job scheduling techniques in CL, including the use of advanced scheduling commands, managing job dependencies, setting job priorities, scheduling recurring jobs, and monitoring scheduled jobs. These skills are essential for efficient system management and automation. In the next module, we will explore advanced file operations in CL.