Aruba WAP design

Please take a quick look at this Aruba WAP design and let me know if there anything can do better there.  Or if there anything I should change.
Are the Aruba controllers HA with a heartbeat cable between each other or over the switch?
I will have about 10 APs.  
Does it make sense for x2 Mobility Masters in different geo locations?

Any  other tips please let me know.  Thanks!
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Jakob DigranesSenior ConsultantCommented:
Aruba controllers use heartbeat over L2 networking (or L3 IP networking).  But to get full use of hitless failover, you need to have them in L2 connection. Then you need to exclude all VLANs not L2 connected (most likely all VLANs except for ControllerIP VLAN.

Mobility masters in different geo-locations should work, but you need to consider routing - which might be an issue if you have different gateways.

How many clients, and what are you SLA for uptime? also - consider 150% coverage with APs, so that 1 AP can go down, but woul will still have wireless coverage of the area

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