The three-pod vCenter Server design separates the management, edge, and resource functions into their own dedicated pods. The three-pod vCenter Server differs in that the second vCenter Server instance manages separate clusters for the resource and edge functions.

Figure 1. vCenter Server Three-Pod Design

Three-Pod vCenter Server Design

With three-pod design, each pod is implemented as a cluster. This enables the NFVI operator to specify different cluster level configurations for the edge and resource clusters.

The Management pod of the three-pod design is almost identical to that of the two-pod design. The only exception is the vCenter Server that manages two clusters, one for the Resource pod and one for the Edge pod respectively, while the same vCenter Server in the two-pod design manages only the collapsed Edge / Resource pod.