The issue is resolved, the server came back online at 10:28 PM ET.
(It was down for 22 minutes and 46 seconds).
The server host for the cluster required a restart & failed over to another host server.
The data centre team is currently investigating the cause, which appears to an issue with the cluster host server.
We're currently investigating a possible network issue with the farleymowat cluster. More details once we have them available.