Purpose

To allow the creation of interdependent relationships between system jobs

Subsystem

Job Control and Scheduling

Structure

Three Blocks

Prerequisite Job

System Job

Dependent Job

Image

It is anticipated that the data in this form will be set up and maintained by IT staff.

The second of the three blocks - System Job - displays the context record. There are zoom buttons ( , ) in the first and third blocks corresponding to each record displayed in these blocks. These buttons permit the adjacent record to be dropped or elevated into the middle block, where it in turn becomes the context record with its related records displayed in the other two blocks.

Spread tables allows job details to be seen in all three blocks.

System Job

Explanation

This is the context record which, if this form is accessed from Maintain Job Details (JBSF4110), is carried from that form. It is possible to re-query on any job.

If interdependent jobs are included in the same request, prerequisite jobs must complete successfully before dependent jobs can run. In terms of this form, jobs specified in the Prerequisite Job block must run before the job in the System Job block, which in turn must run successfully before any jobs specified in the Dependent Job block can run.

To inquire on the dependency relationships for a job other than that initially displayed, using the Maintain Job Dependencies form:

1. Place the cursor in the System Job block.
2. Ensure Query mode.
3. Enter query details in the appropriate field(s).
4. Execute the query.
5. Where more than one job record is returned, scroll through the records until the correct record is located or
6. Redefine the query details and repeat this process.

Prerequisite Job

Explanation

Where the mandatory indicator is set for a prerequisite or dependent job, that job must be included in any request which includes the job shown as the system job, and vice versa. If this indicator is not set, the jobs can exist as 'stand alone' in a request, but if both are included in the same request, prerequisite jobs must run before dependent jobs.

If a prerequisite job fails in a request, dependent jobs will have their status set to ABORTED and will not run.

To create a new prerequisite relationship to the system job, using the Maintain Job Dependencies form:

1. Navigate to the Prerequisite Job block.
2. Insert or select a blank record.
3. Select the required job from the list of values (or key a valid value).
4. Select the Mand (mandatory) indicator, if required.
5. Save.

To remove the link between a prerequisite job and context job, using the Maintain Job Dependencies form:

1. Ensure that the correct job is displayed in the context block.
2. Select the desired prerequisite job.
3. Delete record.
4. Save.

Dependent Job

Explanation

Where the mandatory indicator is set for a dependent job, that job must be included in any request which includes the job shown as the system job, and vice versa. If this indicator is not set, the jobs can exist as 'stand alone' jobs in a request, but if both are included in the same request, prerequisite jobs must run before dependent jobs.

To create a new dependent relationship to the system job, using the Maintain Job Dependencies form:

1. Navigate to the Dependent Job block.
2. Insert or select a blank record.
3. Select the required job from the list of values (or key a valid value).
4. Select the Mand (mandatory) indicator, if required.
5. Save.

To remove the link between dependent job and context job, using the Maintain Job Dependencies form:

1. Ensure that the correct job is displayed in the context block.
2. Select the desired dependent job.
3. Delete record.
4. Save.

Changes within this form will have the following notable effects:

Creating a new dependency relationship may prevent existing waiting requests from running if

• the relevant jobs are already included in the request, and
• these jobs are sequenced in a way that runs counter to the new dependency relationship.