Hi Everyone,
We have 10 CAS servers, with the OA and Autodiscover URL going via a load balancer, which redirects to the 10 CAS servers.
We recently put in an additional two CAS servers, and set the relevant URLs to go via the Load Balancer. We intentionally didn't add these CAS servers to the load balancers to avoid connections at this time while we perform some additional work.
However, it appears that internal Outlook clients are picking up the new CAS server despite picking up the LB URLs. The external clients, which cannot use SCP, do not use the new CAS servers.
I'm not understanding how this is possible? I was of the impression that Outlook retrieves the SCP record, which points to the LB URL, and then it should go to the designated CAS servers.
Can anyone shed some light on why this might be occurring? With the SCP records, does it pass the connection off to a local site CAS server despite the LB by design?
Cheers!
BTL