Wireless Access

We have offices in the locations above. I would like to connect the offices together with Aruba controllers for redundancy and for sharing the same VLANs at each location. How would this be best accomplished?

Site 1 - 7010 controller

Sites 2, 3 & 4 would be 7005 controllers

Would I need to use a Master/Local configuration? Or should they all be individual masters? Also, I don't want to cause a loop, so how would I prevent that on the site to site vpn's? Another also, LOL, I would like to set up redundancy for the RAPs I have deployed so that should a hurricane roll through and wipe my NC location off the map, my RAP users will still be in business.

Thanks gang, any input is appreciated :-)

How does communications between those sites occur today? Do you already have a private WAN at these sites or are they islands?

Currently the NC site is live and the 4 or 5 RAPs deployed report back to it. The other three sites do not have controllers (yet). There is a development network at the NC site which may eventually expand to the Tennessee site for DR purposes since the NC site is coastal and susceptible to hurricanes.