In VMware Cloud Foundation , after preparing all the ESXi hosts and the network for multiple availability zones, you turn on and configure vSAN stretched cluster in the NSX-T workload domain.
Procedure
Enable vSAN Stretched Cluster on the NSX-T Workload Domain Cluster In VMware Cloud Foundation , after you configure Availability Zone 2 and deploy the vSAN witness appliance in a third location, turn on the vSAN stretched cluster functionality, and set fault domains and the vSAN witness host.
Update the vSAN Storage Policy for an NSX-T Workload Domain In VMware Cloud Foundation , to tolerate an availability zone failure, update the vSAN storage policy of the domain cluster for a secondary level of failures.
Update the vSphere Availability Settings of the Cluster for an NSX-T Workload Domain In VMware Cloud Foundation , after you configure the vSAN stretched cluster, you change the admission control policy to reserve 50% of the capacity to support recovery if an availability zone failure occurs.