Q. Can I mix deployment types in a Windows Server 2016 cluster?
A. With Windows Server 2016 there are 3 deployment types/configuration levels
- Server with Desktop Experience
- Server Core
- Nano Server
In normal operation and to be blessed by the cluster validation tool all nodes in a cluster should be running the same configuration level, e.g. all Server Core or all Nano Server.
During an upgrade fromR2 or if migrating Windows Server 2016 cluster to a new deployment type, e.g. wanted to move from a cluster of Server Core instances to Nano Server instances it is possible to mix but this should only be for a limited type during upgrades/migrations and not for normal run state.
If you did mix deployment types in a cluster such as Server with Desktop Experience, Server Core and Nano Server you would need to ensure that any workloads in the cluster are supported across the deployment types.