Late in 2014, Microsoft announced that it was introducing Azure site recovery. In effect, this is Microsoft's version of Disaster Recovery as a service. The Microsoft Cloud will act as your Disaster Recovery site. This potentially means that you don't need to maintain multiple sites for the purposes of on-premises Disaster Recovery. You have your main on-premises site, which you would replicate to Azure.
There are other providers out there too, such as VMware's vCloud Air Disaster Recovery. The choice really comes down to what virtualization technology you are using on-premises. We will briefly discuss Microsoft's Azure Disaster recovery site solution—Azure site recovery. It's relatively self-explanatory; it lets you replicate the Hyper-V machines running on your premises into Azure. You can then use these replicated machines for Disaster Recovery with minimal additional work.
Configuring and setting up site recovery is outside the scope of this...
