Hey beautiful people, we're gonna have another downtime today.
Hopefully this won't take too long, but it's always hard to gauge.
We're transferring the DB back to the real DB server, which has been upgraded to a newer OS as well as 64-bit, so we can finally use 8 GiB of RAM instead of just 2 GiB.
Addendum: And we're done and everything went smoothly.