AZs are implemented for high availability to protect applications and data from datacenter failures. AZs are unique physical locations within an Azure region. Currently, you can choose between three zones. Each zone is made up of one or more datacenters, depending on the size of the region. Every zone's data center is equipped with independent power, cooling, and networking.
If one datacenter fails, the other data center, and with that the workloads within that datacenter, are not effected.
This list shows the currently available workloads and applications that support and offer AZs:
- Linux VMs
- Windows VMs
- Virtual machine scale sets
- Managed disks
- Load balancers
- Public IP addresses
- Zone-redundant storage
- SQL databases
- Event hubs
- Service buses
- VPN gateways
- ExpressRoute