KDFD161E [detecting_module_name]: UNABLE TO OBTAIN [size] BYTES OF CSA, RC = [retcode]

Explanation
 			 				An attempt to issue a STORAGE OBTAIN macro for the 				specified [size] in subpool 241 (CSA) failed with the 				indicated return code. 			 		
System action
 			Processing continues with VTS monitoring disabled. 		
User response
 			 				Refer to the publication z/OS® Authorized Assembler 				Services Guide to determine the specific cause of the 				STORAGE OBTAIN failure indicated by [retcode]. If 				sufficient storage was available in CSA at the time of 				the request, contact IBM® Software Support. 			 		