FABJ4119W DUMMY IS SPECIFIED ON THE CHKPTDD DD STATEMENT. THE CHECKPOINT RESTART FUNCTION IS DISABLED.

Explanation

The JCL specifies a dummy, //CHKPTDD DD DUMMY, for the checkpoint file. There is no requirement that the checkpoint file ddname, CHKPTDD, be defined. Its use is optional. If the ddname is missing, then the Checkpoint Restart process will be inactive.