Disaster Recovery Runbook

A Disaster Recovery Runbook is a detailed guide that outlines the necessary steps to take in the event of a disaster. Here's an example of what a Disaster Recovery Runbook might look like:

1. Define the disaster and activate the DR Plan:

• Define the specific disaster that has occurred and activate the DR Plan.
• Notify the incident management team, stakeholders, and relevant personnel.

2. Assess the Situation:

• Determine the extent of the disaster and the impact on the application and its infrastructure.
• Assess the status of backups and replication.

3. Implement Failover:

• Initiate the failover procedure to the secondary site.
• Update DNS to redirect traffic to the secondary site.
• Monitor the status of the application and its components to ensure that the failover is successful.

4. Restore Data:

• Restore the most recent backup to the secondary site.
• Verify the integrity and consistency of the data.

5. Verify Application Availability:

• Test the application on the secondary site to ensure it is available.
• Monitor the application's performance and logs for any issues.

6. Investigate Root Cause:

• Investigate the root cause of the disaster.
• Review logs and other data to determine the root cause.

7. Return to Normal Operations:

• Determine when to return to normal operations.
• Update DNS to redirect traffic back to the primary site.
• Monitor the application's performance and logs to ensure that everything is working as expected.

8. Conduct Post-mortem:

• Conduct a post-mortem analysis of the disaster and recovery process.
• Document lessons learned and areas for improvement in the DR Plan.
• Schedule follow-up tasks to ensure that improvements are implemented.

By following this runbook, you can help ensure that your application can be quickly restored in case of a disaster, and that your business operations can continue with minimal disruption.