The physical infrastructure design includes details on decisions for availability zones and regions and the pod layout within datacenter racks.

Design decisions related to server, networking, and storage hardware are part of the physical infrastructure design.

Physical Infrastructure Design
All components of the SDDC are shown, but the physical infrastructure component is highlighted.

Physical design fundamentals include decisions on availability zones and regions and on pod types, pods, and racks. The ESXi host physical design is also part of the design fundamentals.

The physical network uses a leaf-and-spine network architecture.  

This VMware Validated Design relies on both vSAN storage and NFS storage. The "Shared Storage Design" section explains where the SDDC uses which type of storage and gives background information. The focus of this section is physical storage design.