Disaster recovery as a service (DRaaS) is a cloud computing service model that enables a company to backup its data and IT infrastructure in a third-party cloud computing environment and provide all the DR orchestration, all through a SaaS solution, to regain access and functionality to IT infrastructure after a disaster. According to the as-a-service model, the company can rely on the service provider and not have to manage or own all of the resources for disaster recovery. For on-premises or cloud computing infrastructures, third-party Disaster Recovery as a Service (DRaaS) Market providers can offer failover, which is billed either on-demand, based on actual consumption, or through continuous retainer agreements. Service level agreements often include DRaaS criteria and expectations (SLAs).
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