Is Always On FCI considered legacy technology to be avoided in favor of AG? Or is it still robust option for HA that will be supported by MS well into the future (unlike the now deprecated mirroring feature)? I realize that selection of HADR technology
depends on our particular needs, and FCI would suit part of our needs. But we don't want to implement technology that might be deprecated in a few years. We're considering a hybrid approach to HADR -> 2-node FCI (with AG primary replica)+AG
secondary replica in Azure. That seems like a pretty conventional approach that will get us all the HADR features we need. The biggest benefit there is shared storage of the FCI and thus avoiding cost of dedicated storage for multiple on-prem
AG secondaries.
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