Your data does not leave the United Kingdom when being secured. Our Cloud Backup Storage Servers are located right here in the UK and are also "mirrored" to another server farm also right here in the UK. We offer several products that all use the same high quality UK servers.
Here is the actual array of our Docklands datacentres which our cloud is spread across: http://www.c4l.co.uk/connectivity/datacentres/docklands (link will open in a new tab)
We can continue to operate if an entire datacentre went offline due to us utilizing multiple paths to multiple storage controllers, which can be rebuilt 'on the fly' from parity data if a virtual disk loses it's source segment - that's the whole concept of having a cloud! The SAN behind the storage array currently has capacity for 100 petabytes, and no data traverses the above London Docklands infrastructure so as to ensure compliance with UK data laws.