Scenario number 1 :
Main application/Poller server is UP but additional poller server is down then does advance alert will be triggered for device down which are polled by additional pollers or does device will be marked as down which are polled by AP if additional poller is down ? - I believe No as Node status will not be updated.
Scenario number 2:
Main application/poller is down but additional poller servers are UP then advance alert will be triggered ? I believe No.
Also
Is there any recommendation on sequence for rebooting of the main poller and additional poller servers/services ?