Backing up LC server

The document found in the url below mentions the following regarding backing up the LC database:

"Before backing up the LiveCycle database, you should shutdown the appserver instances hosting LiveCycle as well as any messaging server instances used by LiveCycle for JMS messaging. This is because the messaging engines maintain exclusive locks on these tables. "

Is this really the case? Should we implement a schedule / script where the server is stopped, backed up, then restarted? Are hot backups not recommended?

Here's the url:
http://blogs.adobe.com/livecycle/2007/07/what_are_those_sibtables_in_my.html

Thank You