DFR1030E OPEN FAILED FOR DDNAME = `ddname`

Explanation
 The data set specified in the ddname DD
statement could not be opened.

System action
 The job ends with an abend code of U1030.

User response
 Verify whether the correct data set is specified
on the ddname DD statement in the execution JCL.
Correct the error and then run the job again if necessary.