Glossary term
What is RTO (Recovery Time Objective)?
RTO stands for Recovery Time Objective.
In DevOps
How long you can afford to be down. Measure it by actually running a restore drill.
Learn it properly · DevOpsLesson 8: RDS: Managed PostgreSQLA real database that AWS backs up, patches and fails over for you — and how to connect it privately from your app server.In System Design
How long you can afford to be down. Example: RTO 1 hour = must be back online within an hour.
Learn it properly · System DesignLesson 45: Backups & Disaster Recovery: RPO vs RTOReplication faithfully copies a mistaken DELETE, ransomware or silent corruption to every replica in milliseconds. Why backups are a different thing, how RPO and RTO drive every decision, point-in-time recovery, the 3-2-1 rule, the four DR strategies, and why an untested backup is only a hope.In System Design Case Studies 2
How long you can afford to be down before service is restored.
Learn it properly · System Design Case Studies 2Lesson 7: Design a System Across Multiple Data CentresActive-passive versus active-active, DNS steering, sync versus async replication, split brain and failback, with an RPO simulation.