Dump files are written to your system directory with a filename of 
                        			 casdumpn.rec, where 
                        			 n is either 
                        			 a or 
                        			 b depending on the currently specified dataset. 
                     		  
                     Note: By default, 
                        			 Enterprise Server uses the A dataset for output files. If you want to change the dataset, click 
                        			 SWITCH DUMP SET. If the dataset is currently set to A, it is switched to B. If it is B, the dataset is switched to A.