What is Fast Failback?
Topic
This article provides a definition for the term 'Fast Failback.'
Environment
- Datto SIRIS
- USB Bare Metal Restore
Description
'Fast Failback' is a collective term that refers to using a Rescue Agent for disaster recovery failover while performing a continuously-mirrored Bare Metal Restore (BMR) of your production machine.
To perform a Fast Failback restore, your backups and your production environment must meet all prerequisites defined in Restore: Create Rescue Agent and USB Bare Metal Restore: Getting Started.
This process is incompatible with encrypted agents.
Getting Started with Fast Failback
To perform a Fast Failback, perform the following steps:
- Start a local virtualization on your Datto appliance, and during the setup process of the virtual machine, create a Rescue Agent.
- Carry out your business continuity activities in the local virtualization, ensuring that successful backups are appearing on the Manage Recovery Points page for the rescue agent.
- When you are ready to restore back to production, perform a USB Bare Metal Restore of the downed production machine from the Rescue Agent's dataset, ensuring that you have selected the Continuous Mirroring option as part of the restoration process.
- The backups your Rescue Agent takes will continue to be written to your production machine until you end the Bare Metal Restore process.