CMP Jun-5-2015:

The following sentence needs more commentary:

"but sampling and publishing can only be activated on one Server."

We propose:

"but sampling and publishing can only be active on one Server. However, the active Server will return actual data, whereas the redundant Server(s) will return an appropriate error in the Publish response such as Bad_WaitingForInitialData or Bad_NoCommunication."

Note: We intentionally changed the word 'activated' to 'active' so as not to suggest the backup server(s) has knowledge it is a backup-Server and can therefore prevent activating a subscription.