Storage Spaces Direct (S2D) is a Windows Server feature that aggregates local disks across cluster nodes into distributed software-defined storage.
Simple definition
Storage Spaces Direct (S2D) is a Windows Server feature that aggregates local disks across cluster nodes into distributed software-defined storage. It belongs to the Windows / Windows Server vocabulary and is useful when reading architecture diagrams, product documentation, logs, or administration procedures.
What is it used for?
Its main purpose is to build highly available storage for Hyper-V or other workloads without a traditional SAN array. The practical value depends on the surrounding architecture, security model, and operational requirements.
How does it work?
S2D uses clustering, SMB, storage pools, and resiliency mechanisms to distribute data and copies/parity across nodes.
Key points
- Scope: A Windows Server feature that aggregates local disks across cluster nodes into distributed software-defined storage.
- Operational goal: Build highly available storage for Hyper-V or other workloads without a traditional SAN array.
- Implementation: S2D uses clustering, SMB, storage pools, and resiliency mechanisms to distribute data and copies/parity across nodes.
Points to watch
Hardware compatibility, inter-node networking, and resiliency sizing are critical to performance and availability.
In short
Storage Spaces Direct (S2D) = a Windows Server feature that aggregates local disks across cluster nodes into distributed software-defined storage. Use it when you need to build highly available storage for Hyper-V or other workloads without a traditional SAN array.