[Resolved 6:59 PM 10/26/12] Post-outage testing was successful. We apologize for any inconvenience this unscheduled outage may have caused.

[Update 6:35 PM 10/26/12] We have implemented a fix to the issue, and are putting the system through its paces before we call the issue resolved.

[Original post] Automatic monitoring alerted our team that the Cascade system became unavailable at 5:00 PM. We have traced the problem to our database server and our database administrators are troubleshooting. There is no ETA. An update will be posted at 7:00 PM, or earlier if more information becomes available.