https://www.ibm.com/docs/en/db2-for-zos/13.0.0?topic=connections-controlling-cics
Db2 13 - Administration - Controlling CICS connections
Certain CICS attachment facility commands can be entered from a CICS terminal to control and monitor connections between CICS and Db2.
administration controllingdb213cicsconnections
https://www.ibm.com/docs/en/ims/15.4.0?topic=ims-controlling-data-sharing
IMS 15.4 - System administration - Controlling data sharing
Controlling data sharing involves using DBRC and monitoring the data-sharing system.
15 4system administrationimscontrollingdata
https://www.ibm.com/docs/en/db2-for-zos/13.0.0?topic=mcdic-controlling-distributed-data-connections-database-access-threads-dbats
Db2 13 - Administration - Controlling distributed data connections and database access threads...
You can control connections for remote systems that request distributed data access by controlling the database access threads (DBATs).
administration controllingdata connectionsdatabase accessdb213