You can use the FCCGFREEZE keyword on the COPY FULL or COPY TRACKS CPVOLUME command to specify that the FlashCopy® source volume is to be part of a FlashCopy Consistency Group. Subsequent I/O activity to the source volumes will be held (frozen) as each volume is copied. A frozen volume remains in long busy state until the "Consistency Group Created" (thaw) command is processed on the logical subsystem (LSS) where the volume resides or when the FlashCopy Consistency Group timer expires.