Since around 1700 we have suffered an issue with a number of SQL servers in our LON DC. Our analysts are investigating and will post updates shortly.
1800 - We have started the restore process. This is going well. We expect no longer than 1 hour - Next update at 1830
1820 - We have been able to restore the original servers. The issue was an encryption problem with the underlying volumne. All Services have been restored.
A full post mortem will be provided on Monday via the Hornbill Forums