Product : Microsoft, S2D [SDS]/2.0, Datacenter
Feature : Deployment Architecture, Deploy, Design & Deploy
Content Owner:  Herman Rutten
Summary
Single-Layer
Dual-Layer
Details
You can deploy Storage Spaces Direct (S2D) in two ways:
1. By using the S2D servers for hosting compute as well as storage, thus creating a hyper-converged single-layer configuration. Microsoft uses the term Hyper-converged.
2. By using the S2D servers as storage nodes only, thus creating a traditional dual-layer configuration where compute is hosted on other servers that access the storage through SMB3. Microsoft uses the term Disaggregated.