Services unavailable due to power and network outage

During the night of wednesday on thursday a power outage resulted in a network outage in the basement computing facilities. The power was restored to the network equipment using a bypass thus circumventing the UPS at about 09:15. Further checks implied that most servers had not become powerless so that most services became automatically available again. Network drivers on “bundle” had to be restarted in order to get access to home directories for a large number of users. Furthermore, several websites had to be restarted which made it possible for PC’s to boot properly. During the day, an unrelated issue with the RAID storage of “plus” has been fixed as well granting access to the following network shares: sofie, ams*, molchem, mb*, encapson, milkun4, snn, neuropi, digicd. carta, … Since wireless devices were unable to acquire IP addresses, i.e. gain access to the network, a split-brain situation was diagnosed within the DHCP service which was resolved around 13:00.