DFS1594I SC=08 MIX, MIXD, MIXS, MIX'nn', MIXS'nn' ARE EXCLUSIVE

Explanation
 MIX, MIXD, MIXS, MIX'nn', and MIXS'nn' are mutually
exclusive keywords, but more than one was specified on a DFLD statement.

System action
 MFS does not create the DOF/DIF blocks.

Programmer response
 Specify only one of these keywords on the
DFLD statement; then rerun the job.