Disaster Recovery

Disaster Recovery Plan (DRP)

A plan that outlines the procedures to follow in the event of a disaster that affects an organization’s operations.

Recovery Time Objective (RTO)

A metric that defines the maximum acceptable amount of time taken to recover from a disaster and restore services.

Recovery Point Objective (RPO)

A metric that indicates the maximum acceptable amount of data loss measured in time during a disaster.

Mean Time to Repair (MTTR)

The average time required to repair a system or component after a failure.

Mean Time Between Failures (MTBF)

The average time expected between failures of a system or component.

Site Resiliency

The ability of an organization’s systems and resources to continue functionality even in the event of a disaster.

Cold Site

An empty facility that requires equipment and data to be brought in after a disaster to restore operations.

Hot Site

A fully equipped backup facility that is an exact replica of the primary data center, allowing for quick recovery.

Warm Site

A backup facility that has some infrastructure and may include some hardware, but may require data to be brought in.

Tabletop Exercise

A simulated discussion of a disaster recovery scenario where participants describe their response process without physical actions.