Nagios Support Forum

Hi Team,

We have a requirement where in we have DC/DR setup and Nagios xi is proposed to be used. What we would like to understand is about below 3 license installs--
Production Install - The main monitoring install for a given license key. This is the install that system administrators use on their production servers and infrastructure to monitor their environment and receive notifications when systems are not working properly.
Test/Lab Environment - The second install is for use in a test environment. This ensures that when upgrades are necessary, or major configuration changes are implemented, there are not adverse effects to the main monitoring system. The test install allows teams to “preview” their changes without jeopardizing the main system.
Backup Install - Each Nagios xi license key may be used on one separate monitoring server that is designated as a disaster recovery (DR) instance, as long as the following condition is met:
The DR instance is in non-operational mode (e.g. it is not actively monitoring hosts and services), except when it assumes operation when the primary monitoring server fails.

a. How can we use the backup install for DR side?
b. How does Nagios understand that primary instance is not in use?
c. Is the license key separate for this or the same key as primary instance?[/b][/b]

I've updated the ticket that was opened regarding this. We'll continue working through that and close this forum thread.