High Availability Configuration Modes
CloudControl supports the following high availability modes. Choose the mode that more closely aligns with your operational needs.
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Single-Site Configuration—With single-site configuration, both CloudControl nodes (primary and secondary) reside in the same subnet. After a failover, the secondary node becomes primary and takes over the CloudControl management IP (VIP) and published IPs (PIPs) of the protected resources. These IP addresses do not change during a failover, and are accessible at the new primary node.
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Dual-Site Configuration—With dual-site configuration, the CloudControl nodes reside in separate networks, for example, Site A and Site B. An IP address reachable when hosted on Site A’s network will generally not be reachable when hosted on Site B. For this reason, each CloudControl node has its own VIP and set of PIPs. They cannot be shared. In this configuration, we recommend to protect vCenter instances or ESXi hosts with fully-qualified domain names (FQDN) in DNS instead of using raw IP addresses.
For the ESXi hosts, you can use either individual PIPs, or a Global PIP.
Single and dual-site configuration share the same procedure for setting up basic HA. After the setup, additional steps remain to set up dual-site IP translation.