As it turns out, there was an unfortunate mistake when reinstalling the three
machines mentioned in the subject. As a result, we have to do the imaging
again. Fortunately, we can skip the backup steps this time around, so the
disruption will be much smaller.
This time, we will start with stat1007, next week Tuesday (2020-10-06), in the
UTC/EU morning. Dowtime should be less than two hours.
If you have any questions, let us know.
Tobias Klausmann, SRE, Wikimedia Foundation