Specifying job group breakdown options

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The Job Group Breakdown Options window allows you to set specific options that affect how each job group is built. You can specify how many objects are included per job group or job step, the maximum number of jobs built per job group, and whether jobs should be padded if the maximum is not reached.

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Important: Because each job group is treated as an individual job profile and results in a separate job, these breakdown options are applied to each job group. In addition, a job group is treated as a single job group if there is one of each profile type (object, utility, and optionally exception) in the job profile. If there is more than one of each profile in a job group, more than one set of jobs is generated. In this case, the job group breakdown options apply to each SET of jobs that are generated for the job group.

For example, if a job group has one object profile, two exception profiles, and one utility profile, two sets of jobs are typically produced: a set of jobs that runs a utility on objects that meet the first exception profile's criteria; and another set that performs the same utility on a set of objects that meets the second exception profile's criteria. In this case, job breakdown options apply to each set. If Maximum number of jobs is set to 2, each set that met the exception profile's criteria can generate up to two jobs. In this scenario, up to four jobs in total might be generated for the entire job group (two jobs x two exception profiles).

To access these options, on the Generation Options window, type Y in the Update Job Group Break Down Options field and press Enter. The Job Group Breakdown Options window appears, as shown in the following figure:

Figure 1. Job Group Breakdown Options window

                  Job Group Breakdown Options                 
                                                        
  Option  ===>                                                
                                                              
  Maximum nbr of jobs . . . . . . . . . . . 1     (0-999)     
  Maximum nbr of objects per job group. . . 0     (0-99999)   
  Maximum nbr of objects per step . . . . . 99999 (0-99999)   
  Pad Jobs if max not exceeded. . . . . . . Y     (Yes/No)

This window allows you to specify the options described in the following section:

Maximum nbr of jobs: Type in the maximum number of unique jobs that you want to be generated per job group. If you type 0, Db2 Automation Expert will determine the appropriate number of unique jobs based on the value in the Maximum nbr of objects per job field.
Db2 Automation Expert honors the job breakdown options unless the z/OS® limit on steps overrides them. If the given constraints (such as one object per step or the z/OS limit on the number of steps allowed per job) force Db2 Automation Expert to generate more than this maximum, Db2 Automation Expert will create more than the maximum. You must adjust your settings to maintain this maximum. You can allow a higher maximum number of jobs (Db2 Automation Expert can pad with IEFBR14 dummy jobs to make up the difference if not needed) or allow more objects per step.

Note: If you specify one member with multiple jobs, you will not be able to use the restartability feature.
Maximum nbr of objects per job group: If you want to limit the number of objects included in each job group, enter the limit here. You can use this field with the Maximum nbr of jobs field to control how many jobs are generated per job group.
Maximum nbr of objects per step: If you want to specify how many objects are included in each job step, enter the limit here. Type 0 to allow Db2 Automation Expert to determine the number of objects in each step. Type 9999 to include all objects in a single step.
Note: To generate image copies of directory and catalog spaces to stacked tape, this field must be set to 1.
Pad Jobs if max not exceeded: Y in this field specifies that when the number of jobs generated is less than the maximum number of jobs specified in the Maximum nbr of jobs field, additional dummy jobs are created to meet the maximum number. For example, if the max number of jobs is 10 and only eight jobs are generated, two dummy jobs will also be generated. The dummy jobs contain JCL for the IEFBR14 program.