During Failover /DR do we need to change communication.managerid_n in System Agent?
Release: All Supported Versions
Component: CA system Agent
When there is a switch on the schedule, the scheduler will send out active info to all the Agents and will update the agentparm.txt with the new scheduler hostname.
No need of any manual interruption unless you have communication.manager.dynamic.modifications.lock enabled in agentparam.txt file.
https://knowledge.broadcom.com/external/article/49150/restrict-access-to-113-system-agent-to-o.html