The virtual infrastructure design includes the software components that make up the virtual infrastructure layer and that support the business continuity of the SDDC.

These components include the software products that provide the virtualization platform hypervisor, virtualization management, storage virtualization, and network virtualization. The VMware products in this layer are vSphere, vSAN, and NSX for vSphere.

Figure 1. Virtual Infrastructure Layer in the SDDC

Virtual Infrastructure Design Overview

The consolidated SDDC virtual infrastructure consists of a single region. This region includes a consolidated cluster which consists of management, edge and compute workloads.

Figure 2. SDDC Logical Design

Consolidated Cluster

The consolidated cluster runs the following services:

  • Virtual machines to manage the SDDC such as vCenter Server, NSX Manager, vRealize Automation, vRealize Log Insight, and vRealize Operations Manager.

  • Required NSX services to enable north-south routing between the SDDC and the external network, and east-west routing inside the SDDC.

  • SDDC tenant virtual machines to support workloads of different Service Level Agreements (SLAs).

Because this cluster supports all SDDC, network, and production workloads, it is important to ensure highly available physical components such as HVAC, power feeds and power supplies.