Disaster Recovery as a Service is a service provided to the client where a provider offers some kind of Disaster Recovery solution. Usually it consists in the remote replication of hosts (they can be either physical or virtual) in order to avoid a failover situation in case of a natural disaster or some damages by humans.

Intervention modalities are defined by means of a dedicated Service Level Agreement (SLA); DRaaS is best suited for small-medium companies that don’t have enough resources to build their own internal DR system.