The system health of the TKN TWIST instance is constantly monitored using the CACTI monitoring tools:
You can either use the CACTI System Health Summary, which displays information on the utilization of the testbed server and super node status. The information is updated every 30 min.
Or you can access the CACTI System Health Browser to see more fine-grained information on some particular systems components (please use account name "guest" and password "guest" to get access to the public data.)