Disaster recovery refers to the plan and processes for quickly reestablishing access to applications, data, and IT resources after an outage.
Introduction to Backup and Disaster Recovery
https://www.ibm.com/cloud/learn/backup-disaster-recovery#:~:text=Backup%20and%20Disaster%20Recovery%201%20Recognize%20the%20difference,for%20achieving%20your%20backup%20and%20disaster%20recovery%20goals
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December 6, 2018