Cause . . . . . : Tape device &25 is not loaded. Recovery . . . : Load the tape on device &25 and then press On line on device &25. If it is necessary to reset and start the tape controller again, do the following: 1) Vary off the tape unit (VRYCFG command). 2) Vary on the tape unit (VRYCFG command) specifying *YES for the RESET parameter.