Build high availability into your BCDR strategy

Virtual machines (VMs) are physically separated across zones, and a virtual network is created using load balancers at each site. These locations are close enough for high availability replication, so your applications stay running, despite any issues at the physical locations.

Architecture

Download an SVG of this architecture.

Data Flow

1. Create zone-redundant Load Balancer.
2. Create front-end subnet.
3. Create DB subnet.
4. Create VMs in three Availability Zones.
5. Configure zone-redundant SQL DB.
6. Add VMs to the load balancer's back-end pool.
7. Deploy your application on VMs for redundancy and high availability.

Components

• Virtual Machines: Provision Windows and Linux virtual machines in seconds
• Azure SQL Database: Managed, intelligent SQL in the cloud
• Load Balancer: Deliver high availability and network performance to your applications

Next steps

• Virtual Machines documentation
• SQL Database documentation
• Load Balancer documentation