KDFS033I UNABLE TO READ VOLUME TABLE OF CONTENTS FOR [volser ]

Explanation
 			 				The migration subtask was unable to read the VTOC of the 				displayed 				volser 				. An accompanying console message is generated 				describing the precise cause of the error. 			 		
System action
 			 				Some data set names cannot be resolved for the volume's 				I/O activity. 			 		
User response
 			 				Locate the diagnostic message that indicates the cause 				of the VTOC error and take any necessary corrective 				action. If problems persist, contact IBM® Software 				Support. The destination is the MVS™ system console. 			 		