Our Hot stand-by server is not collecting data when the primary poller fails. The engine starts but no data is collected. Does the hot stand- by need all the devices on it in order to collect data when the primary poller fails?
When you look in the Monitor Engines lower pane - what is there?
Orion-> Advanced Features -> Monitor Polling Engines
It should read Last fail over...
It lists the time and date of the last fail over
What version is this?
8.5.1 Service Pack 3