CS Department lost connection to outside Internet

11.06.2013 - 03:00 - 09:00

One of our server room's racks lost its power supply for yet unknown reasons (probably a blown fuse though). The rack happened to contain the switch through which department's outside Internet connection is routed and therefore the Internet connection went down.

The rack has now has a temporary power supply arrangement. There will later be an another short outage (few minutes), when we return the switch to its proper power source.

During the outage no Internet access was possible from inside CS Department's network. Also all our servers, including mail.cs.helsinki.fi and www.cs.helsinki.fi, were available only to users inside our own network.

We already had all the required equipment  to stop this kind of single point of failures from happening. However, they are not yet in use. Sorry about that. 

11.06.2013 - 11:36 Jani Jaakkola
11.06.2013 - 11:06 Jani Jaakkola