To disable the entire alert system, edit the report server configuration file commonAlarm-hcbs.properties.
Open the commonAlarm-hcbs.properties file in a text editor.
You will find this file on the report server in the <install_dir>\config\ directory.
Add the following line to the file:
The alert engine (detection and generation mechanisms) will be disabled when you restart the report server and alert notifications will not be sent.
To restore the alert engine operation, remove this line or comment it out.