SYSDATA

SYSDATA is the term used to designate the data in three job sysout data sets:

• job log (console messages)
• expanded JCL
• system output messages

SYSDATA data sets are usually produced for each execution of a job or started task. However, not all three data sets are necessarily present in all cases. For example, in JES2, if a job is canceled by the operator before execution, the system output messages data set might not be produced.

For jobs, the output class for this data is defined by one of the following:

• MSGCLASS parameter on the job card, which is added or overwritten by Control-M during job submission
• JCL job-level //OUTPUT statement using the JESDS subparameter
• default values defined in JES initialization parameters
• for started tasks, in JES initialization parameters

When Control-M/Restart is installed, it uses the SYSDATA to analyze the execution of a job order, beginning with the archived SYSDATA of the most recent non-restarted run.