I have another site I want to add with 2 indexers and 1 search, same setup as site1.
I want to have copies across both clusters so if my original 2 indexers go down, I want the second site to have all data.
Would this work?
site_replication_factor = origin:2,total:4
site_search_factor = origin:1,total:2
Yes, with this conf you will have copy of data on each of your Indexers.
To make sure you have a searchable copy of data on both sites you can change your site_search_factor to:
site_search_factor = origin:1, site1:1,site2:1