Summary
This chapter discussed the important aspects to consider when designing and implementing disaster recovery. Disaster recovery is usually run by the operations side of the business, not by security. However, availability is one of the components of the Confidentiality, Integrity, and Availability (CIA) triad, as well as the increasing prevalence of ransomware, leading to security being involved in the design and principles of disaster recovery planning in business.
You looked at the various approaches that organizations can take to implement disaster recovery, their advantages and disadvantages, and the operative principles that help an organization decide which approach is suitable for a given scenario and risk tolerance. You also saw how these approaches are carried out and documented, but it is also important that plans are tested to ensure that they will work as well as possible during an incident.
The topic of disaster recovery and resilience is large and depends...