The Watcher monitors all of the services registered with it. For Calendar Server, the registered processes are: cshttpd, csadmind, csdwpd, dsnotifyd.
If csstored is enabled, that is, if the configuration parameter local.store.enable is set to "y", then csstored is also registered with the Watcher. When it is enabled, csstored must be successfully started before each service that accesses the store can be started. If it stops, then the dependent processes must be stopped an restarted also.