UPDATE
[2015-12-01 20:48:23 | Rob McNicholas]
The operating system upgrade to our fileservers introduced a change in behavior which cause the web server outage. The problem has been identified and resolved.
Resolved as of 2015-12-01 20:46:00
After the scheduled maintenance on our fileserver this evening, our web server is having problems reading files from the server, causing outages to many web pages. Staff are working on the problem.