Running HD Pointer Checker on the image copy of the repaired databases

Before using the repaired databases, you must ensure that the databases are repaired correctly.

About this task

Important: Do not, under any circumstances, omit this step.

Procedure

Before bringing the databases back online, verify that the databases are valid, from an IMS standpoint. The best way to do this is to run HD Pointer Checker, using the new image copies as input. Two very important facts are verified in this way:

The databases are completely repaired and contain no errors.
The image copies are usable.

An HD Pointer Checker run should show no errors. All return codes must be zero.

Run HD Pointer Checker to ensure all the errors have been cleaned up and new ones have not been introduced. You can easily add some new damage of your own. If an error is made in zapping pointers, messages like the following messages might appear:

    PTx & PTy POINT TO SAME TARGET 
 
    LTx & LTy POINT TO SAME TARGET 
 
    MORE THAN 1 PTx (TO SAME TARGET)

The message terms "PTx & PTy" and "LTx & LTy" represent various combinations of invalid pointers to a target.