If Region B becomes unavailable in the event of a disaster, you perform a failback as disaster recovery to Region A by preparing the network and NSX components in Region A, updating the vSAN Default Storage policy, and performing failback of the operations management applications and the Cloud Management Platform.
Prerequisites
You perform failback as disaster recovery if the following conditions are met:
Procedure
Assign the Primary Role to the NSX Manager Instance for the Management Cluster for VMware Cloud Foundation in Region A Redeploy the Control VM of the Universal Distributed Logical Router for VMware Cloud Foundation in Region A sfo01m01udlr01 in Region A to restore dynamic routing for the management applications.Reconfigure the Universal Distributed Logical Router and NSX Edge Nodes for Dynamic Routing for VMware Cloud Foundation in Region A sfo01m01udlr01 , and NSX Edge nodes sfo01m01esg01 and sfo01m01esg02 . This configuration ensures that the management components of the SDDC continue to communicate using optimal routes in a fault-tolerant network.Verify the Establishment of BGP for the Universal Distributed Logical Router for VMware Cloud Foundation in Region A Deploy the NSX Controllers for the NSX Instance for VMware Cloud Foundation in Region A Connect the Application NSX Load Balancer for VMware Cloud Foundation in Region A to the SDDC Network sfo01m01lb01 load balancer to support high availability and distribute the network traffic load for the Operations Management applications, and the Cloud Management Platform after failback for disaster recovery to Region А.Update the vSAN Default Storage Policy of the Management Cluster for VMware Cloud Foundation in Region A Initiate Disaster Recovery of the Operations Management Applications for VMware Cloud Foundation in Region A Initiate Disaster Recovery of the Cloud Management Platform for VMware Cloud Foundation in Region A Post-Failback Configuration of the SDDC Management Applications for VMware Cloud Foundation Additional Post-Failback Configuration After Region B Is Available Again for VMware Cloud Foundation
