For most VTS services, backup servers behave exactly the same as the primary server when they are called upon to assume that role; however, in the case of the Edit Lockout Manager service, the designated primary server is required to perform online configuration actions. If only a backup ELM server is available, only operational changes may be performed on the application. If no server is available (neither the primary ELM server nor a backup ELM server), operational changes may still be performed on the local workstation, but they will not be propagated to the other workstations on the network until a connection with a server is established.
For information on the RPC Manager, and how it handles synchronization of services, please refer to RPC Manager Service.