HV is down/unreachable. There seems to be a hardware problem. We are investigating it.
Some databases are unreachable.
EDIT 2018-06-18T23:25:00 UTC: Seems to be a malfunctioning fan. The server is still down for investigation. We are waiting for more informations from our hypervisor provider.
EDIT 2018-06-19T00:37:00 UTC: The malfunctioning fans have been replaced. The server is up again. All the databases are up and running.