You can deploy multiple instances vCenter Server appliances concurrently (in batch mode) using the CLI installer.
To deploy multiple instances concurrently, create JSON templates for all the vCenter Server instances in your deployment. The CLI installer assesses the topology of the deployment using the JSON templates, and determines the order. For this reason, the JSON templates must use static IP addresses for all vCenter Server instances in the deployment that are dependant upon one another.
Important: The JSON templates you create for each appliance must use a static IP address to resolve the network addresses of other appliances in the deployment upon which they have a dependency.
To perform the batch deployment, place the JSON templates defining your deployment in a single directory. When invoked, the CLI installer deploys your existing deployment using the topology defined in the JSON templates.