Thank you for the article.

I have a question about the instance names: do they *have* to be different? If anything, for DR purposes, they instance names should ideally be the same in prod and DR (if we are not using the AG listener).

We are building a 3-node WSFC cluster that includes a 2-node FCI (active-passive configuration) coupled with a standalone AlwaysOn-AG instance on the 3rd node. Will we run into trouble if we name the instance the same on the FCI and AG nodes?

(I was reading an article that described a similar scenario of a single WSFC comprised of 2 FCIs on 2 different subnets; in that article they mention that instance names should be different; I'm not clear why).