Apply Licensing for 5508 HA

Question

Hi All,
I have 2 5508, 5508-A has 500 permanent licenses and 5508-B 200 evaluation licenses, I'm setting up location awareness by adding 180 APs
to 5508-B and then migrating APs on 5508-A to 5508-B and then setting up HA. It is being done this way to avoid disruption to production setup whilst testing, in total I will have 300 APs.
I just need clarification on a couple of points.
1. can I apply additional eval licenses to 5508-B so it supports 300 APs
2. If I apply the HA license to 5508-A, will it push the permanent license count to 5508-B and become standby or will the configuration
    on 5508-B be pushed to 5508-A and the APs disconnect from 5508-B and move to 5508-A and 5508-A is primary whilst 5508-B remains secondary.
3. In the event of failover will this be transparent to the MSE and Prime 1.3
I have read the High Availability (AP SSO) Deployment Guide, and wonder if I'm making it to complicated in terms of migrating APs
between controllers and should just work on the production controller, but be careful whilst doing it.
TIA

Answer 1

Well I don't know if this migration will be transparent. The license for an HA sku WLC is 500 which is the max, but the real license count depends on the primary WLC. The HA WLC just needs a 50 ap license to perform the HA role. I don't really think you should use eval license for HA as you will have to disable AP SSO in order to add a true license and then enable AP SSO. This might become an issue if when you disable AP SSO, your wireless goes down. HA AP SSO hasn't been very stable and that's why there is always risk in doing what you want to do.
Like the saying goes... Proceed with caution:)
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