745-421 Refcode_745-421


		
		
		Explanation
 Internal Hardware Failure 
		

		
		Response
 Replace drive, refer to the tape autoloader service information. 
		

		
		
		
		
		
		Problem determination
			No action is required.

		

		
		
		
		
		
		Failing Item
			
			Find the failing function code in Failing function code list.

				
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