When you install V3R1, you'll need a new save strategy. You have to execute the new SAV command to save all of the Integrated File System (IFS) objects. The correct way to SAV all necessary objects is
SAV DEV('/QSYS.LIB/TAP01.DEVD') +
OBJ(('/*') ('/QSYS.LIB' +
*OMIT) ('/QDLS' *OMIT))
No fooling! The name for this command (when prompting and from IBM menus) is Save Object! On a system with no plans of using IFS, 1,675 objects are saved.