IEBCOPY has been called by a program which has given IEBCOPY a list of DD names to be used for various files. Message IEB1064I lists the default DD names. Message IEB1065I lists the DD names IEBCOPY will use.
Differences between the two lists indicate that the calling program provided names to override the default names.
The severity is 0.
Processing continues.
Refer to z/OS DFSMSdfp Utilities book Appendix A for details about dynamically invoking IEBCOPY.
DFSMSdfp