I deleted a SNMP device from USM so why do I still receive alarms for it?

Document ID : KB000076799
Last Modified Date : 12/04/2018
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Question:
Why do I still get pollagent alarms such as "<hostname> HAS STOPPED RESPONDING" for a SNMP device that I deleted from the USM inventory?
Answer:
The alarm was raised by snmpcollector (who's alarms come in as pollagent) as the corresponding profile was not removed after the device was deleted from USM. If you delete a device from the USM you need to manually delete it's profile from the probe(s) that monitored this device, there is no functionality to also remove these profiles automatically.