If you run the preview application on multiple servers, two requirements apply:
For servers where the Business Control Center is not installed, assembly must omit the modules
PubPortletand, if applicable,DCS-UI. In this case, assembly must explicitly include the WebUI module.The data of versioned repositories must be consistent across all servers. In order to ensure that asset and user profile changes on one server are replicated on all, you must enable caching (preferably, distributed or distributed hybrid caching modes) on all server instances. For more information about repository caching modes, see SQL Repository Caching in the ATG Repository Guide.
Note: Never disable caching on versioned repositories for preview applications or use simple caching mode.
For example, you might assemble an application for preview on a remote server as follows:
runAssembler –liveconfig acme.ear –layer Preview –m WebUI DCS.Versioned MyVrsApp
