https://www.ibm.com/docs/en/ims/15.3.0?topic=objects-deallocdbrm-reply-message-xca01
IMS 15.3 - Application programming APIs - DEALLOCDBRM reply message (X'CA01')
The distributed data management (DDM) architecture DEALLOCDBRM (deallocate database completed) reply message indicates that the named PSB is deallocated.
application programmingreply messageims