Once you have defined a stacked volume to DFSMSrmm you do not normally need to change information about that volume. DFSMSrmm manages the information about stacked volumes and logical volumes during export, import, and copy export, but stacked volume support must be enabled if you want DFSMSrmm to manage the movement of stacked volumes as they are exported or copy exported from the VTS library.

You do need to use the CHANGEVOLUME command to confirm the movement of the stacked volume as you would for a physical volume that was moving.