The primary and secondary audit control data sets are optional. They only need to be specified if SCLM's auditing capability will be used. The VERS and VERS2 control options are used to specify the audit control data sets created in Step 6: Allocate and create the control data sets. The VERS control option specifies the primary audit control data set. The VERS2 control option specifies the secondary audit control data set that is a backup for the primary audit control data set. The FLMALTC macro can be used to specify different audit control data sets on specific groups.