All right, let's quit fumbling around. It is the assignment of a valid storage class which determines the dataset is going to SMS managed volumes. Data class and Management class have no bearing on this problem.
I would examine the STORCLAS routine on the aberrant system to figure out why the dataset got assigned a valid storage class. ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@bama.ua.edu with the message: GET IBM-MAIN INFO Search the archives at http://bama.ua.edu/archives/ibm-main.html