Certain SDDC management applications and services must be available in the event of a disaster. These management applications are running on vSphere virtual machines, and can have dependencies on applications and services that run in both regions.

This validated design for disaster recovery defined the following logical configuration of the SDDC management applications:

  • Region A has a management cluster of ESXi hosts with management application virtual machines that must be protected. 

  • Region B has a management cluster of ESXi hosts with sufficient free capacity to host the protected management applications from Region A.

  • Each region has a vCenter Server instance for the management ESXi hosts within the region. 

  • Each region has a Site Recovery Manager server with an embedded Site Recovery Manager database. 

  • In each region, Site Recovery Manager is integrated with the Management vCenter Server instance. 

  • vSphere Replication provides hypervisor-based virtual machine replication between Region A and Region B. 

  • vSphere Replication replicates data from Region A to Region B by using a dedicated VMkernel TCP/IP stack.

  • Users and administrators access management applications from other branch offices and remote locations over the corporate Local Area Network (LAN), Wide Area Network (WAN), and Virtual Private Network (VPN).

Figure 1. Disaster Recovery Logical Design