This document discusses cloud-based disaster recovery services. It notes that downtime from disasters can cause businesses to fail. Traditional on-premise disaster recovery has high costs and complexity, while cloud-based DRaaS offers lower and more flexible costs through a cloud service provider. The document then outlines different cloud disaster recovery models including cold, warm, and hot backup options and how they differ in recovery time objectives. It provides an overview of a cloud-based DRaaS offering from Datacomm that allows for automated backups, failover testing, and recovery of virtual machines.