What is a disaster? - Disaster Recovery of Workloads on AWS: Recovery in the Cloud

What is a disaster?

When planning for disaster recovery, evaluate your plan for these three main categories of disaster:

  • Natural disasters, such as earthquakes or floods

  • Technical failures, such as power failure or network connectivity

  • Human actions, such as inadvertent misconfiguration or unauthorized/outside party access or modification

Each of these potential disasters will also have a geographical impact that can be local, regional, country-wide, continental, or global. Both the nature of the disaster and the geographical impact are important when considering your disaster recovery strategy. For example, you can mitigate a local flooding issue causing a data center outage by employing a Multi-AZ strategy, since it would not affect more than one Availability Zone. However, an attack on production data would require you to invoke a disaster recovery strategy that fails over to backup data in another AWS Region.