ETO descriptor overrides

If a descriptor is defined in both DFSDSCTy and DFSDSCMx, the descriptor in member DFSDSCTy overrides the descriptor in member DFSDSCMx.

No message is issued.

If a descriptor is defined more than once in either member, error message DFS3661 is issued. IMS uses the last descriptor defined. If the same descriptor is defined once in member DFSDSCTy and one or more times in member DFSDSCMx, the descriptor in member DFSDSCTy is used, and no error message is issued.