Cloud disaster recovery, or DR, is the use of cloud resources, backups, replication, and procedures to restore systems after major failures or outages.
What DR protects against
DR planning can address data center outages, region failures, cyber incidents, accidental deletion, hardware failure, and application-level disasters.
DR metrics
Two important measures are Recovery Point Objective (RPO) and Recovery Time Objective (RTO). They define acceptable data loss and downtime.
Cloud DR is not just backup storage; it is a tested recovery plan.