General notes
When you run Acquire you will see the parameters you specified printed out along with any validation errors or warnings. You will also see a list of options that are in effect for this run so you can check what other options are being used.
This listing is written to the VMMSGS DD name.
For collection runs this output DD also holds other messages such as the size in MB and number of records read.
For a COLLECT run the dataset(s) processed have their names and intervals listed on the VMLIST DD name.
Specific fields are extracted from input records and written to the WORKnn files, which are sorted twice by collection runs, once to remove any possible duplicate data and then again to put it into the correct order for Acquire to process.
You will see messages from SORT on the SYSOUT DD name.