HFPJ3108E SEGMENT IN AREA NO; nnnn AT RBA: xxxxxxxx (SEG-CD: nnnn) EXCEEDS MAX DEFINED LENGTH.
Explanation
An unload subtask determined that the data in the specified segment was longer than the value that is allowed by the definition for that segment in the output DMB. nnnn is the area number.
System action
The job ends with an abend code of U3003.
User response
Correct the errors, and rerun the job.