As Luca B. and some others have pointed out already, the EBN is down again. Read errors on one disk followed by a panic on one of the filesystems overnight. This means plenty of things offline again, and by now the situation is such that I'm going to have to take drastic measures. That means fetching the disk array and rebuilding most of the machine. In the meantime I will leave the two SAS disks in so that some of the essential services can be restored, but it means that the EBN and api.kde.org (which use up most of the disk space, processor power and bandwidth) will be down for as long as it takes.
Needless to say, anyone with a nice 1U or 2U storage unit they are willing to donate to KDE is really welcome to step up.