There is an important distinction between data backup and disaster recovery.
Backup refers to the process of saving data or making multiple copies of data and copying it to a second storage environment. You can protect the data in many forms including data duplication on the cloud or saving data to a remote data center.
On the other hand, Disaster recovery involves a set of tools, policies, and procedures for quickly re-establishing access to applications, data, and IT resources after a natural or human-induced disaster. DR focuses on IT supporting business critical functions as part of business continuity.