Our preferred solution for business continuity and backups are the Siris range of products.
The Siris Datto combines a local hardware/cloud storage platform for your servers. As well as providing a normal file/folder/database backup, the Siris keeps a full virtual copy of your servers hosted at a remote datacentre.
In the event that a server has a catastrophic failure, a copy of the server can be spun up and accessed either locally or in the cloud; allowing your business to continue functioning in minutes with a properly formulated business continuity plan.