Azure Availability Zones are physically separate locations within an Azure region, with each comprising at least one datacenter equipped with its own independent power, cooling, and networking.
Due to this, they are able to continue to operate if another part of the network goes down, and companies are able to set up a resilient system by using multiple pairs of regions.
Microsoft notes Availability Zones increase Azure’s resiliency capabilities and broaden options for customers to choose the business continuity solution that is right for their organization. Microsoft designed Availability Zones to give customers great confidence in delivering services and with an industry-leading, financially-backed 99.99% virtual machines uptime SLA.
Today Microsoft announced that they have added Southeast Asia as an Azure Availability Zone, served out of Singapore.
“By building application architecture using a combination of Availability Zones with Azure region pairs, customers can synchronously replicate applications and data using Availability Zones within an Azure region for high-availability within Singapore, and asynchronously replicate across Azure regions for geographic disaster recovery protection,” noted Patrik Bihammar, Microsoft’s Singapore cloud and enterprise lead.
Microsoft currently operates more than 50 Azure Regions, having only started offering the service specification in March this year.