Lesson 1 of 414 min

BCDR (Business Continuity and Disaster Recovery) — designing for the bad day

RPO (Recovery Point Objective) and RTO (Recovery Time Objective) drive the design. Local + cloud + immutable. Runbooks tested annually.

Notebook and laptop with structured documentation — Photo by Christina Morillo on Pexels

RPO (Recovery Point Objective): how much data can you lose? Drives backup frequency.

RTO (Recovery Time Objective): how long can you be down? Drives recovery infrastructure (warm vs cold standby).

Diagram · 3-2-1 backup rule

Modern BCDR: local appliance (fast restore), cloud copy (off-site), immutable storage (ransomware-proof). Test the runbook annually with a tabletop exercise.

Key takeaways

▸RPO = data loss tolerance
▸RTO = downtime tolerance
▸Immutable storage stops ransomware from eating your backups

Next: Azure administration →