I'd like to free and remove the 49 million lines I have in my CAIMSG DD in my CTS proc

Document ID : KB000116872
Last Modified Date : 03/10/2018
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Introduction:
My JES spool is getting full. Do I need to stop/start CTS? Is there some command I can issue to free the CAIMSG dataset, so that I can delete it? If I must stop/start CTS, will this cause a problem with my tape processing? Thank you.
Instructions:
You can issue the following command from the console: F CTS,SPINOFF,LOG * This will spin the output to JES as CTS. Purge the output from the JES que.