To start ESMAC: 
                  		
               
 
               		
                
                  		  
                  - Access the Enterprise Server Administration screen for your installation. 
                     		  
                  
- In the table of 
                     			 enterprise server instances, check that the server you want has started, and if not, start it. 
                     		  
                  
- In the 
                     			 Status column of the 
                     			 enterprise server instance to monitor, click 
                     			 Details. 
                     			 
                     The Details screen for the server is displayed. 
                        			 
                      
- On the Details screen, select the 
                     			  tab, then click 
                     			 ES Monitor & Control. 
                     			 
                     The Enterprise Server Monitoring and Control (ESMAC) screen is displayed. 
                        			 
                      
  
            	 
            To change the trace dataset 
               	 
            
 
            	 
             
               		
               - In the left pane, click 
                  		  Control. 
                  		  
                  The Control page is displayed. 
                     		  
                   
- Click 
                  		  Trace 
                     			 n, Switch (where 
                  		  n is A or B). If the dataset is currently set to A, it is switched to B. If it is B, the dataset is switched to A. 
                  		
               
Note:  By default, the enterprise server uses the A dataset to record trace information.