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This may be worth additional conversation with me offline or with a Sales Engineer, but if I understand your question correctly I think you are using thinking about FoE and APE incorrectly.
Have you seen these?
Thanks for the links...
What I'm really trying to understand is how Orion will respond under the following scenarios:
(1) If the primary (active) server should fail and the WAN circuit is up.
(I assume the passive-running-as-APE will take over as the primary active and users will access the web portal via it's IP address in the US).
(2) If the primary (active) server should fail and the WAN circuit is down.
(I assume both the active and passive-running-as-APE will continue to operate...but I'm not sure what users will see when they login to the web portal running on the active primary).
(3) If the secondary (passive) server should fail and the WAN circuit is up.
(since the secondary is running as an APE, it will cease to function and I'm guessing the nodes that it collects will appear as down?)
(4) If the secondary (passive) server should fail and the WAN circuit is down.
(I assume the same as #3)
I will do my best to answer.
- Passive server is NOT running as an additional poller, it is basically a full blown Orion installation. Now what happens is assuming the secondary Orion server in the US is on a different subnet, which most are you can do one of two things. First, instead of having your users use an IP Address to access the Orion web console, do it via DNS. Then when a failover occurs from the UK to the US, as part of the failover we will update DNS to point to the IP Address of the US server.
- The secondary Orion services are not running. We typically recommend at least two NIC's, one for normal server communication, this is the IP users would hit or you would tie to DNS and the secondary would be for heartbeat, server replication, etc. for the FoE product. We have methods in place in the software to try and avoid split brain.
- This is not a possible or realistic deployment scenario with FoE.
- Same as #3
As I was discussing before, may make sense to discuss offline on your planned deployment strategy and we can discuss how all the parts can and cannot work together.
This was very helpful, thank you!
No problem, I will also reach out to you offline to make sure we ultimately get you setup in the best manner.