Storage Spaces
The answer you are looking for is Storage Spaces https://technet.microsoft.com/en-us/windows-server-docs/storage/storage-spaces/storage-spaces-direct-overview
Why would MS drive museum exibits like Left Hand and Netapp when they can launch on prem Azure and Hybrid cloud Azure on their own IP. If HPE are involved in the launch in April it will be providing Spaces ready Nodes.
Storage Spaces Direct uses industry-standard servers with local-attached drives to create highly available, highly scalable software-defined storage at a fraction of the cost of traditional SAN or NAS arrays. Its converged or hyper-converged architecture radically simplifies procurement and deployment, while features like caching, storage tiers, and erasure coding, together with the latest hardware innovation like RDMA networking and NVMe drives, deliver unrivaled efficiency and performance.
Storage Spaces Direct is included in Windows Server 2016 Datacenter.