Disaster recovery involves various processes and technologies, including data backup and replication, failover and failback procedures, and business continuity planning. It typically involves a combination of on-premises and offsite resources, such as backup servers, data centers, and cloud-based solutions.

A key component of disaster recovery is the recovery time objective (RTO), which refers to the amount of time it takes to recover functions after a disruption.

This can vary depending on the criticality of the systems and data involved, but in general, organizations strive to achieve the shortest RTO possible to minimize downtime and reduce the impact on the business