Can I configure MYSQL scan and alarm through the OS agent and send the alarm to NSM using the Proxy Agent?
CA Insight r11.5 can be configured so that MySQL alarms flows to NSM EM. This is not an out of the box feature and this would involve manual steps. This is simple Event Manager Integration, not through the proxy agent. MySQL is not supported through the Proxy agent as the Insight proxy agent supports other databases.
You configure the alarm for MySQL on DCC by using a genlimit alarm.