Produce a checkpoint data set containing data from the old production system

Produce a checkpoint data set containing data from the old production system:

1. Merge OLD.CKPT, from the version you are migrating, and the newly allocated CKPT, created in the previous section, into CKPT.NEW using sample EQQPMCKP, which you customize for your environment.
2. Back up the current CKPT and then rename CKPT.NEW to the current CKPT.