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History File Name: 'HIST002blank' History Level Flag: '6'
A history file (DDNAME HIST002) is generated during the formatting of this report. Regardless of the user-defined sort definitions, a record is output to HIST002 for each job. This file contains job-related utilization statistics and cost accounting information which can be used later as input to produce periodic and year-to-date reports without having to process the raw job accounting data. This file serves as a good backup for other history files.
Of course, even job-level history data may not contain enough detail for some backup reporting purposes. New reporting requirements or billing algorithms may arise at year-end for which a history file has not been properly structured. In this case, the summary flag may be set to 7 to cause each job and job step record to be written to the summary file. By having information at the job-step level, a new history file is easily created according to new specifications without having to reprocess quantities of raw accounting data. Again, the level of detail may warrant the additional records and still provide data that can be processed later in a fraction of the time normally required for raw data.
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