Assuming both Monitors/Devices have been added to an Alert and that the Actions within the Alert have the following boxes checked, the result should be what you are looking for:
-Send failure notifications
-Send recovery notifications
If and when Unit A fails, a failure notification should be sent. At that time, if and when Unit B goes from a Down/Lost state to an Up state, a recovery notification should be sent.
Let me know if you have any additional questions regarding this.
Chris Foley - SolarWinds - Support Specialist
Support:866.530.8040 || Fax:512.857.0125
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