this has been beaten to death already in multiple threads here.

In short...off-site failover servers is not practical for a project of this scope, and any backup will have some age on it simply due to the time it takes to complete the backup process. Depending on the method used, they could even be days old. Best case scenario is if they already have a datacenter capable of housing everything, they could take a backup of the data in it's current offline state, then transfer that to another location and bring it back up--but that will take a considerable amount of time to do. We're not talking about just a handful of simple servers here. It is a MASSIVE data center with terabytes of data.

Raist