Public preview: Azure Availability Zones
Published date: October 14, 2017
Azure Availability Zones are now available for preview in two regions, US East 2 and West Europe. The current list of enabled regions and services is available on the documentation page.
Availability Zones are fault-isolated locations within an Azure region, designed with independent power, cooling, and networking. They help protect your mission-critical applications from failures of entire datacenters with low latency and high availability.