In information technology, Disaster Recovery (DR) is a set of policies and procedures aimed at protecting a system from a natural or human-induced disaster. The term Disaster can refer to any major event that may disrupt operations of an entire data center. Disaster Recovery aims to continue (or quickly resume) the system operation in case of a negative event.
Hence, Disaster Recovery planning can be addressed in the following two ways or a combination of the two:
- Resilience: This involves planning for uninterrupted service of the critical business functions, for instance through redundancy
- Recovery: This involves planning to recover and restore the business functions that fail
When planning for Disaster Recovery, the following two objectives must be defined first, typically by the business owner of the system:
- Recovery Point Objective (RPO): This is the maximum...
