10 February 2016
8:00 Arya is back online. Performance will be degraded (sites will be slow) while the RAID rebuilds for the next hour or so.
7:15PM The server is being shut down now.
7:10PM Backup has completed
5:15 Starting a full server backup now
5PM Hetzner has just informed me that the RAID alarm for the server Arya is sounding.
This means that either a hard drive has failed (and requires replacing) or there is something wrong with the RAID configuration.
I have given them the go-ahead to take the server offline to diagnose and fix the problem.
I expect up to 30 minutes of downtime while they do this, for which I apologise.