When all volume copy operations have completed, you can use the DFSMSdss CGCREATED command to allow I/O activity to resume on the frozen volumes (thaw the volumes) residing in the logical subsystems. The required ACCESSVOL keyword specifies one or more volumes residing in the LSS to which the "thaw" command will be directed. Only one volume needs to be specified for each LSS containing frozen volumes in the FlashCopy® Consistency Group.