IIUD3601E GET FAILED FOR DDNAME `ddname`

Explanation
 The GET failed for a directory from the DD ddname data
set.

System action
 IIUUDIAG ends with an abend code of U3601.

User response
 See the MVS™ system
message and its programmer response. Correct the error, and rerun
IIUUDIAG. If the error persists, report it to IBM®.