You have installed a robot on AIX using the RPM installer version 23.4.3 or higher but the robot is not starting after installation.
Symptoms:
DX UIM 23.4.3 (CU3) or higher
Robot RPM installer 23.4.3 or higher
IBM AIX 7.1, 7.2 or 7.3
As of robot 23.4.0 the way the robot starts has been changed.
The automatic startup on system reboot will automatically be configured correctly if you are using the 23.4.3 RPM or higher but there is a new command to start the robot manually.
Instead of using "startsrc -s nimbus" to start the robot, run the command:
/opt/nimsoft/bin/niminit start
For DX UIM/robot 23.4.2 or prior see this article and this solution document.