VMware Cloud Foundation - Design Decision - When using a single availability zone, the shared edge and workload cluster requires a minimum of 4 ESXi hosts to support vSAN.
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Article ID: 318094
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VMwareVMware Cloud Foundation
Issue/Introduction
Design Decision: When using a single availability zone, the shared edge and workload cluster requires a minimum of 4 ESXi hosts to support vSAN.
Resolution
Design Justification: Having 4 ESXi hosts addresses the availability and sizing requirements. You can take an ESXi host offline for maintenance or upgrades without impacting the overall vSAN cluster health.
Design Implication: The availability requirements for the shared edge and workload cluster might cause under utilization of the cluster's ESXi hosts.
This design decision is supported in the following Domains. • Management Domain • VI Workload Domain
This design decision is supported on VCF version 4.1 and higher.
Note: To search for additional information on this design decision please search on the design decision text in https://docs.vmware.com/. For example https://docs.vmware.com/en/search/#/%22Enable%20Network%20I%2FO%20Control%20on%20all%20distributed%20switches.%22
Additional Information
Please reference the VMware Cloud Foundation version you are running and if this design decision is applicable to you.