Reliability guides by service

This article provides links to reliability guidance for many Azure services. Most reliability guides contain the following information:

Production deployment recommendations provide guidance on how to deploy the service to meet your reliability requirements in production environments.
Resilience to transient faults describes how the service handles day-to-day transient faults that can occur in the cloud. It also describes how to handle these faults in your application, including information about retry policies, timeouts, and other best practices.
Reliability architecture overview is a synopsis of how the service supports reliability. It includes information about which components Microsoft manages and which components you manage, built-in redundancy features, and how to provision and manage multiple resources, if applicable.
Resilience to availability zone failures describes how the service supports availability zones, requirements you need to meet to use availability zones, how traffic is routed and data is replicated between zones, what happens when a zone experiences an outage, zone recovery, and how to configure your resources for availability zone support.
Resilience to region-wide failures outlines whether the service provides multiregion capabilities, requirements to use those capabilities, how traffic is routed and data is replicated between regions, the region-down experience, failover and failback support, and how to deploy custom multiregion solutions.
Resilience to service maintenance describes how the service handles planned maintenance events, including how to minimize downtime and data loss during these events. It also shows you how to configure the service to improve resilience during maintenance times.
Service-level agreements (SLAs), which define and describe the expected uptime, and how the expected uptime changes based on the configuration that you use.
Backup and recovery for supported services, including who controls and manages backups, where they're stored and replicated to, how they can be recovered, and whether they're accessible only within a region or across regions.

Reliability guides by service

The following table provides links to reliability guidance for Azure services. Each guide contains information about how the service supports reliability features.

Note

Some documents don't follow a single reliability guide format. These services might list more than one article that references reliability guidance.

Service	Reliability guide	Other reliability documentation
Azure AI Search	Reliability in AI Search
Azure API Center	Reliability in Azure API Center
Azure API Management	Reliability in API Management
Azure App Configuration	Reliability in Azure App Configuration
Azure App Service	Reliability in App Service
Azure App Service - App Service Environment	Reliability in App Service Environment
Azure Application Gateway for Containers	Reliability in Application Gateway for Containers
Azure Application Gateway v2	Reliability in Azure Application Gateway
Azure Automation	Reliability in Azure Automation
Azure Backup	Reliability in Backup
Azure Bastion	Reliability in Azure Bastion
Azure Batch	Reliability in Azure Batch
Azure Blob Storage	Reliability in Blob Storage
Azure Bot Service	Reliability in Bot Service
Azure Chaos Studio	Reliability in Chaos Studio
Azure Container Apps	Reliability in Container Apps
Azure Container Apps Sandboxes	Reliability in Container Apps Sandboxes
Azure Container Instances	Reliability in Container Instances
Azure Container Registry	Reliability in Container Registry
Azure Cosmos DB	Reliability in Azure Cosmos DB
Azure Data Box		Recover data if an entire region fails
Azure Data Explorer	Reliability in Azure Data Explorer
Azure Data Factory	Reliability in Azure Data Factory
Azure Data Manager for Energy		Reliability in Azure Data Manager for Energy
Azure Data Share		Disaster recovery for Data Share
Azure Database for MySQL	Reliability in Azure Database for MySQL
Azure Database for PostgreSQL	Reliability in Azure Database for PostgreSQL
Azure Databricks	Reliability in Azure Databricks
Azure DDoS Protection	Reliability in DDoS Protection
Azure Device Registry	Reliability in Device Registry
Azure DevOps		Data protection overview
Azure Disk Storage	Reliability in Azure Disk Storage
Azure DNS Private Resolver	Reliability in Azure DNS Private Resolver
Azure DNS private zones	Reliability in Azure DNS private zones
Azure DNS public zones	Reliability in Azure DNS public zones
Azure DocumentDB	Reliability in Azure DocumentDB
Azure Elastic SAN	Reliability in Elastic SAN
Azure Event Grid	Reliability in Event Grid
Azure Event Hubs	Reliability in Azure Event Hubs
Azure ExpressRoute	Reliability in Azure ExpressRoute
Azure Files	Reliability in Azure Files
Azure Firewall	Reliability in Azure Firewall
Azure Functions	Reliability in Azure Functions
Azure Health Data Services		Disaster recovery for Health Data Services
Azure Health Data Services: De-identification service		Reliability in the Health Data Services de-identification service
Azure Health Data Services: Workspace services (FHIR®, DICOM®, medtech)		Business continuity and disaster recovery considerations
Azure HDInsight	Reliability in HDInsight
Azure IoT Hub	Reliability in IoT Hub
Azure Key Vault	Reliability in Key Vault
Azure Key Vault Managed HSM	Reliability in Azure Key Vault Managed HSM
Azure Kubernetes Service (AKS)	Reliability in AKS
Azure Load Balancer	Reliability in Load Balancer
Azure Logic Apps	Reliability in Logic Apps
Azure Managed Grafana	Reliability in Azure Managed Grafana
Azure Machine Learning		Failover for business continuity and disaster recovery
Azure Managed Redis	Reliability in Azure Managed Redis
Azure Migrate		Azure Migrate and backup and disaster recovery
Azure Monitor health models	Reliability in Azure Monitor health models
Azure Monitor Logs	Reliability in Azure Monitor Logs
Azure NAT Gateway	Reliability in Azure NAT Gateway
Azure NetApp Files	Reliability in Azure NetApp Files
Azure Network Watcher		Network Watcher service availability and redundancy
Azure Notification Hubs	Reliability in Notification Hubs
Azure Private Link service	Reliability in Azure Private Link service
Azure public IP addresses		Azure public IP addresses availability zone
Azure Queue Storage	Reliability in Queue Storage
Azure Route Server		Route Server frequently asked questions (FAQs)
Azure Service Bus	Reliability in Service Bus
Azure Service Fabric		Deploy a Service Fabric cluster across availability zones Disaster recovery in Service Fabric
Azure SignalR Service	Reliability in Azure SignalR Service
Azure Site Recovery	Reliability in Azure Site Recovery
Azure SQL Database	Reliability in Azure SQL Database
Azure SQL Managed Instance	Reliability in Azure SQL Managed Instance
Azure Storage Actions	Reliability in Azure Storage Actions
Azure Storage Discovery	Reliability in Azure Storage Discovery
Azure Storage Mover	Reliability in Storage Mover
Azure Stream Analytics	Reliability in Azure Stream Analytics
Azure Table Storage	Reliability in Table Storage
Azure Traffic Manager	Reliability in Traffic Manager
Azure Virtual Desktop		Multiregion business continuity and disaster recovery for Azure Virtual Desktop Azure Virtual Desktop service architecture and resilience
Azure Virtual Machines	Reliability in Virtual Machines
Azure VM Image Builder	Reliability in VM Image Builder
Azure Virtual Machine Scale Sets	Reliability in Virtual Machine Scale Sets
Azure Virtual Network	Reliability in Virtual Network
Azure Virtual Network Manager	Reliability in Azure Virtual Network Manager
Azure Virtual WAN		Availability zones and resiliency in Virtual WAN Disaster recovery design
Azure VMware Solution	Reliability in Azure VMware Solution
Azure VPN Gateway	Reliability in VPN Gateway
Azure Web PubSub Service	Reliability in Azure Web PubSub Service
Microsoft Fabric	Reliability in Microsoft Fabric