Physical design fundamentals include decisions on availability zones, regions, workload domains, clusters, and racks. The ESXi host physical design is also a part of design fundamentals.
Availability Zones and Regions in ROBO Availability zones and regions have different purposes. Availability zones protect against failures of individual hosts. Regions provide disaster recovery of the entire SDDC. This design deploys a protected region with one or two availability zones and recovery region with a single availability zone.
Clusters and Racks in ROBO The consolidated cluster of the ROBO SDDC is implemented in a single rack.
ESXi Host Physical Design Specifications in ROBO The physical design specifications of the ESXi host determine the characteristics of the ESXi hosts that you use to deploy this VMware Validated Design.