Hot disaster recovery refers to a disaster recovery (DR) approach where a fully operational backup site—called a “hot site”—is maintained as a real-time mirror of the primary production environment. This site is equipped with all necessary hardware, software, and continuously synchronized data, allowing for immediate or near-instantaneous failover in the event of a disaster or critical outage.
The hot site is a full replica of the primary site, including infrastructure, applications, and data. Data is kept up to date through real-time or frequent synchronization. Immediate Failover: In the event of a failure at the primary site, operations can be switched over to the hot site with minimal downtime—often within minutes or seconds—ensuring business continuity. Minimal Data Loss: Because data is continuously replicated, the risk of data loss is extremely low, making this approach ideal for organizations with stringent recovery point objectives (RPOs) and recovery time objectives (RTOs).