With Disaster Recovery as a Service (DRaaS), customer data is replicated and stored in a service provider 's cloud. Replication and hosting of customer data by a service provider has the advantage that the customer does not need a backup data center and can access its backup data at any time in the event of disruptions.
The backup service provider's services can be ensured through hardware facilities and service level agreements( SLA). These include the storage and virtual machines( VM) that the provider must provide and operate continuously. As far as service level agreements (SLAs) are concerned, downtime, resilience, recovery time objectives ( RTO) and recovery point objectives ( RPO) can be clearly defined in them and included in the customer's IT services.
Disaster Recovery-as-a-Service brings cost advantages to companies, as data does not have to be recovered over the Internet. In addition, the investments for costly hardware and maintenance, as well as the costs for efficient Disaster Recovery Planning( DRP) are eliminated.