Enables emulation of UCC11, the JCL job restart functionality. 
                  	 
 
            	 
             
               		 
               	 
            
 
            	 
             
               		
               Note: This environment variable works independently of the JCL RESTART parameter. 
                  		
               
 
               	 
              
            	 
            
               Syntax:
 
               		 
               		MF_UCC11=Y|YA|M|N
 
               	   
            	 
            
               Properties:
 
               		 
               		
               
                  		   
                  			 
                  - Y 
                     			 
                  
- When restarting a job with 
                     				DISP=(NEW,CATLG), it will not result in job failure caused by the data set already being cataloged. 
                     			 
                  
- YA 
                     			 
                  
- When running a job with 
                     				DISP=(NEW,CATLG), it will not result in job failure caused by the data set already being cataloged. 
                     			 
                  
- M 
                     			 
                  
-  
                     				
                     When restarting a job, a cataloged data set is presumed to have an initial disposition of 
                        				  MOD rather than 
                        				  NEW. As a result, any new data is appended to the existing data set. 
                        				
                      
- N 
                     			 
                  
- JCL job restart functionality is disabled.