Disaster Recovery.
Design and test disaster recovery procedures.
Disaster recovery planning starts with business requirements: RTO (how quickly must we recover?) and RPO (how much data can we lose?). These drive technical design.
Common disasters: datacenter failure, region outage, data corruption, ransomware, and human error. Each requires different recovery procedures.
Test DR regularly. Untested DR plans fail when needed. Conduct tabletop exercises, failover tests, and full DR drills annually at minimum.
RTO
Recovery Time Objective
Maximum acceptable downtime. Drives infrastructure redundancy and failover automation.
RPO
Recovery Point Objective
Maximum acceptable data loss. Drives backup frequency and replication strategy.
TEST
Regular DR Testing
Validate recovery procedures work. Annual full tests, quarterly tabletop exercises.