# Azure Site Recovery (Disaster Recovery)

> Chapter 104 of the Courseiva AZ-900 curriculum — https://courseiva.com/learn/az-900/azure-disaster-recovery

**Official objective:** 2.1 — Azure Architecture Services

## Introduction

This chapter covers Azure Site Recovery. AZ-900 tests under 2.1.

## A Backup Plan

A business has a disaster plan: what to do if the main office burns down. Azure Site Recovery enables disaster plans for applications: automatic failover to backup infrastructure.

## Core explanation

Site Recovery automates failover of on-premises or Azure workloads to a secondary location during disasters, reducing RTO (recovery time) and RPO (recovery point).

## Real-world context

A company replicates production VMs to Azure, automatically failing over if the on-premises data center fails.

## Exam focus

Objective 2.1 expects understanding of disaster recovery automation.

## Step by step

1. **Configure replication** — Workloads replicate to a secondary location.
2. **Test failover** — Failover is tested without affecting production.
3. **Failover** — During a disaster, failover to the secondary happens automatically or manually.

## Key takeaways

- Automates failover during disasters.
- Reduces RTO and RPO.
- Supports on-premises and Azure workloads.

## FAQ

**What is Azure Site Recovery?**

It automates failover of workloads to a secondary location during disasters, reducing downtime and data loss.

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Interactive version with quiz and diagrams: https://courseiva.com/learn/az-900/azure-disaster-recovery