MX DC-DC redundancy

[Amafu_Cloud]

Hi Team

I am having issues understand the below doc

https://documentation.meraki.com/MX/Deployment_Guides/Datacenter_Redundancy_(DC-DC_Failover)_Deploym...

Concept only, not real scenario

if i have 2 DC's, 8 Remote site, (one meraki organization)

4 additional remote sites in 2 different meraki orgs

I want all the above remote sites to connect back to the 2 DC's

1. I take it the 8 remote sites in the same org as the DC's will use AutoVPN
2. The 4 other sites in different orgs will use  non-meraki s2s vpn

my real question is how would i design this?

at the DC1, i would have 2 mx's Active and Passive and same at DC2

1. do the spokes(remote sites) see the active MX for DC1 and active MX for DC2
2. or is DC like a warm spare of DC1

I hope the above makes sense, how would the design look like

[cmr]

The first option - spokes will see the active MX setup as a hub at each DC and the DCs will see each other.  The secondary MX is never really seen unless the primary fails and then via VRRP it becomes the primary 

[PhilipDAth]

Are your DC's by chance layer 2 adjacent?

[Amafu_Cloud]

connect via mpls, and DIA