You can use the FCINCREMENTAL keyword for a COPY FULL or COPY TRACKS CPVOLUME commands to perform an initial full volume copy if no Incremental FlashCopy® relationship exists between the volume pair. If there is an existing Incremental FlashCopy relationship between the volume pair, DFSMSdss copies the changed tracks in the new direction specified on the INDDNAME/INDYNAM and OUTDDNAME/OUTDYNAM keywords. The new direction can be the same or the reverse of the original (existing) direction.