In the webinar titled "Large Scale Tomcat Deployments", one of the slides describes the option to share config/ across multiple tomcat instances. Specifically, the slide shows the following folder structure:

apache-tomcat-6.0.x/
* A regular Tomcat install
run.sh
* Control script
shared/
* Shared instance data
- conf/
logging.properties
server.xml
tomcat-users.xml
- logs/
instance_1/
* An instance of a Tomcat server
instance_2/
instance_n/

where the config files (server.xml, tomcat-users.xml) are shared across multiple tomcat instances. How exactly is this accomplished? where is the setting for which I can point to the shared config/ folder?

Thank you

Ben Tse