Some physical files may have restrictions placed on them that need to be verified during an initial program load (IPL). With the Edit Check Pending Constraints display, you can verify the status of these physical files.
During an attended IPL, the Edit Check Pending Constraints display is shown if there are constraints to be verified. A constraint is an attribute that places a restriction or limitation on a physical file.
On the Edit Check Pending Constraints display, you can change the sequence (1 through 99) of the constraints to be verified. If the constraint has a sequence less than or equal to the IPL threshold, it is verified during the IPL. If a constraint has a sequence greater than the IPL threshold, it is verified after IPL. The sequence *HLD indicates that the constraint is not verified until it is changed to a number from 1 through 99. When the IPL threshold changes, all constraints with a status of IPL or AFTIPL are changed to reflect the new status of the IPL threshold.
If you press F3 (Exit and continue IPL), the constraints are verified while the IPL continues. Every five seconds, the display is updated with the current run time. After all constraints with IPL status have been verified, the IPL continues. If you press F12 (Cancel), you return to the Edit Check Pending Constraints display.