Azure services with availability zone support
Azure availability zones are physically separate locations within each Azure region. This article shows you which services support availability zones.
For more information on availability zones and regions, see What are Azure regions and availability zones?,
Azure is continually expanding the number of services that support availability zones, including zonal and zone-redundant offerings.
Types of availability zone support
Azure services can provide two types of availability zone support: zonal and zone-redundant. Each service might support one or both types. When designing your reliability strategy, make sure that you understand which availability zone types are supported in each service of your workload.
Zonal services: A resource can be deployed to a specific, self-selected availability zone to achieve more stringent latency or performance requirements. Resiliency is self-architected by replicating applications and data to one or more zones within the region. Resources are aligned to a selected zone. For example, virtual machines, managed disks, or standard IP addresses can be aligned to a same zone, which allows for increased resiliency by having multiple instances of resources deployed to different zones.
Zone-redundant services: Resources are replicated or distributed across zones automatically. For example, zone-redundant services replicate the data across multiple zones so that a failure in one zone doesn't affect the high availability of the data.
Some services don't use availability zones until you configure them to do so. If you don't explicitly configure a service for availability zone support, it's called a non-zonal or regional deployment. Resources configured in this way might be placed in any availability zone in the region, and might be moved. If any availability zone in the region experiences an outage, non-zonal resources might be in the affected zone and could experience downtime.
Important
Some services may have limited support for availability zones. For example, some may only support availability zones for certain tiers, regions, or SKUs. To get more information on service limitations for availability zone support, select that service in the table.
Always-available services
Some Azure services don't support availability zones because they are:
- Available across multiple Azure regions within a geographic area, or even across all Azure regions globally.
- Resilient to zone-wide outages.
- Resilient to region-wide outages.
For a complete list of always-available services, also called non-regional services, in Azure, see Products available by region.
For more information on older-generation virtual machines, see Previous generations of virtual machine sizes.
Azure services with availability zone support
The following tables provide a summary of the current offering of zonal, zone-redundant, and always-available Azure services. They list Azure offerings according to the regional availability of each.
Important
To learn more about availability zones support and available services in your region, contact your Microsoft sales or customer representative.
Legend
In the Product Catalog, always-available services are listed as "non-regional" services.
Important
Some services, although they are zone-redundant, may have limited support for availability zones. For example, some may only support availability zones for certain tiers, regions, or SKUs. To get more information on service limitations for availability zone support, select that service in the following table.
AI and machine learning
| Product | Reliability |
|---|---|
| Azure AI Search |  |
| Azure Bot Services |  |
Analytics
| Product | Reliability |
|---|---|
| Azure Data Explorer | |
| Azure Data Factory | |
| Azure Event Hubs | |
| Azure HDInsight |  |
| Azure Storage: Azure Data Lake Storage | |
| Azure Stream Analytics | |
| Microsoft Fabric | |
| Power BI Embedded | |
Compute
| Product | Reliability |
|---|---|
| Azure App Service | |
| Azure App Service: App Service Environment | |
| Azure Batch | |
| Azure Container Apps | |
| Azure Container Instances | |
| Azure Functions | |
| Azure Kubernetes Service (AKS) | |
| Azure Service Fabric | |
| Azure Spring Apps | |
| Azure Virtual Machine Scale Sets | |
| Azure Virtual Machines | |
| Azure Virtual Machines: Av2-Series | |
| Azure Virtual Machines: Bs-Series | |
| Azure Virtual Machines: Ddsv4-Series | |
| Azure Virtual Machines: Ddv4-Series | |
| Azure Virtual Machines: DSv2-Series | |
| Azure Virtual Machines: DSv3-Series | |
| Azure Virtual Machines: Dsv4-Series | |
| Azure Virtual Machines: Dv2-Series | |
| Azure Virtual Machines: Dv3-Series | |
| Azure Virtual Machines: Dv4-Series | |
| Azure Virtual Machines: Edsv4-Series | |
| Azure Virtual Machines: Edv4-Series | |
| Azure Virtual Machines: ESv3-Series | |
| Azure Virtual Machines: Esv4-Series | |
| Azure Virtual Machines: Ev3-Series | |
| Azure Virtual Machines: Ev4-Series | |
| Azure Virtual Machines: F-Series | |
| Azure Virtual Machines: Fsv2-Series | |
| Azure Virtual Machines: FS-Series | |
| Azure Virtual Machines: M-Series | |
| Azure Virtual Machines: Azure Compute Gallery | |
| Azure Virtual Machines: Azure Dedicated Host | |
| Azure VMware Solution | |
| SQL Server on Azure Virtual Machines | |
*VMs that support availability zones: AV2-series, B-series, DSv2-series, DSv3-series, Dv2-series, Dv3-series, ESv3-series, Ev3-series, F-series, FS-series, FSv2-series, and M-series.*
Containers
| Product | Reliability |
|---|---|
| Azure App Configuration | |
| Azure Container Apps | |
| Azure Container Instances | |
| Azure Container Registry | |
| Azure Functions | |
| Azure Kubernetes Service (AKS) | |
| Azure Red Hat OpenShift | |
| Azure Service Fabric | |
Databases
Developer tools
| Product | Reliability |
|---|---|
| Azure API Center | |
| Azure App Configuration | |
| Azure Monitor | |
| Azure Monitor: Application Insights | |
DevOps
| Product | Reliability |
|---|---|
| [Azure Monitor Logs]((/azure/azure-monitor/logs/availability-zones) | |
Hybrid and multicloud
| Product | Reliability |
|---|---|
| Azure Database for PostgreSQL – Flexible Server | |
| Azure ExpressRoute | |
| Azure SQL Database | |
| Azure Stack Edge | |
| Microsoft Defender for Cloud | |
| Microsoft Sentinel | |
Identity
| Product | Reliability |
|---|---|
| Microsoft Defender for Identity | |
| Microsoft Entra Domain Services | |
| Microsoft Entra ID | |
Integration
| Product | Reliability |
|---|---|
| Azure API Management | |
| Azure Data Factory | |
| Azure Event Grid | |
| Azure Functions | |
| Azure Logic Apps | |
| Azure Service Bus | |
| Azure Web PubSub | |
Internet of Things
| Product | Reliability |
|---|---|
| Azure API Management | |
| Azure Cosmos DB for NoSQL | |
| Azure Event Grid | |
| Azure Functions | |
| Azure IoT Hub | |
| Azure IoT Hub Device Provisioning Service | |
| Azure Logic Apps | |
| Azure Maps | |
| Azure Notification Hubs | |
| Azure Performance Diagnostics | |
| Azure Stream Analytics | |
| Microsoft Defender for IoT | |
| Microsoft Intune | |
Management and governance
| Product | Reliability |
|---|---|
| Azure Advisor | |
| Azure Automation | |
| Azure Backup | |
| Azure Blueprints | |
| Azure Cloud Shell | |
| Azure Lighthouse | |
| Azure Managed Applications | |
| Azure Monitor | |
| Azure Monitor: Application Insights | |
| Azure Monitor: Log Analytics | |
| Azure Network Watcher | |
| Azure Network Watcher: Traffic Analytics | |
| Azure Policy | |
| Azure portal | |
| Azure Resource Graph | |
| Azure Site Recovery | |
| Azure Traffic Manager | |
| Microsoft Cost Management | |
| Microsoft Graph | |
Media
| Product | Reliability |
|---|---|
| Azure Content Delivery Network | |
Migration
| Product | Reliability |
|---|---|
| Azure Site Recovery | |
| Microsoft Cost Management | |
Mobile
| Product | Reliability |
|---|---|
| Azure AI Search | |
| Azure API Management | |
| Azure App Configuration | |
| Azure App Service | |
| Azure Maps | |
| Azure Notification Hubs | |
Networking
| Product | Reliability |
|---|---|
| Azure Application Gateway (V2) | |
| Azure Bastion | |
| Azure Content Delivery Network | |
| Azure DDoS Protection | |
| Azure DNS | |
| Azure DNS: Azure DNS Private Zones | |
| Azure DNS: Azure DNS Private Resolver | |
| Azure ExpressRoute | |
| Azure Firewall | |
| Azure Firewall Manager | |
| Azure Front Door | |
| Azure Load Balancer | |
| Azure NAT Gateway | |
| Azure Network Watcher | |
| Azure Network Watcher: Traffic Analytics | |
| Azure Peering Service | |
| Azure Public IP | |
| Azure Private Link | |
| Azure Route Server | |
| Azure Traffic Manager | |
| Azure Virtual Network | |
| Azure Virtual WAN | |
| Azure Virtual WAN: Azure ExpressRoute | |
| Azure Virtual WAN: Point-to-site VPN Gateway | |
| Azure Virtual WAN: Site-to-site VPN Gateway | |
| Azure VPN Gateway | |
Security
| Product | Reliability |
|---|---|
| Azure Application Gateway (V2) | |
| Azure Bastion | |
| Azure DDoS Protection | |
| Azure Disk Encryption | |
| Azure Firewall | |
| Azure Firewall Manager | |
| Azure Front Door | |
| Azure Information Protection | |
| Azure Key Vault | |
| Azure VPN Gateway | |
| Customer Lockbox for Microsoft Azure | |
| Microsoft Defender for Cloud | |
| Microsoft Defender for Identity | |
| Microsoft Defender for IoT | |
| Microsoft Entra Domain Services | |
| Microsoft Sentinel | |
Storage
| Product | Reliability |
|---|---|
| Azure Backup | |
| Azure HPC Cache | |
| Azure NetApp Files | |
| Azure Storage account | |
| Azure Storage: Azure Data Lake Storage | |
| Azure Storage: Disk Storage | |
| Azure Storage: Blob Storage | |
| Azure Storage: Files Storage | |
| Azure Storage: Managed Disks | |
| Azure Storage: Ultra Disk | |
Web
| Product | Reliability |
|---|---|
| Azure AI Search | |
| Azure API Management | |
| Azure App Configuration | |
| Azure App Service | |
| Azure App Service: App Service Environment | |
| Azure Container Apps | |
| Azure Content Delivery Network | |
| Azure Maps | |
| Azure Notification Hubs | |
| Azure SignalR Service | |
| Azure Web PubSub | |