Reliability guidance overview

Azure reliability guidance contains the following:

• Service-specific reliability guides. Each guide can cover both intra-regional resiliency with availability zones and information on cross-region resiliency with disaster recovery. For a more detailed overview of reliability principles in Azure, see Reliability in Microsoft Azure Well-Architected Framework.

• Azure Service Manager (ASM) Retirement guides. ASM is the old control plane of Azure responsible for creating, managing, deleting VMs and performing other control plane operations, and has been in use since 2011. ASM is retiring in August 2024, and customers can now migrate to Azure Resource Manager (ARM). ARM provides a management layer that enables you to create, update, and delete resources in your Azure account. You can use management features like access control, locks, and tags to secure and organize your resources after deployment.

Azure services reliability guides

Foundational services

Product	Availability zone guide	Disaster recovery guide
Azure Cosmos DB for NoSQL	Reliability in Cosmos DB for NoSQL	Reliability in Cosmos DB for NoSQL
Azure Event Hubs	Reliability in Event Hubs	Reliability in Event Hubs
Azure ExpressRoute	Designing for high availability with ExpressRoute	Designing for disaster recovery with ExpressRoute private peering
Azure Key Vault	Azure Key Vault failover within a region	Azure Key Vault
Azure Load Balancer	Reliability in Load Balancer	Reliability in Load Balancer
Azure Public IP	Azure Public IP - Availability zones
Azure Service Bus	Azure Service Bus - Availability zones	Azure Service Bus Geo-Disaster Recovery
Azure Service Fabric	Deploy an Azure Service Fabric cluster across Availability Zones	Disaster recovery in Azure Service Fabric
Azure Site Recovery		Set up disaster recovery for Azure VMs
Azure SQL	Azure SQL - High availability	Disaster recovery guidance - Azure SQL Database
Azure SQL-Managed Instance		Azure SQL-Managed Instance
Azure Storage-Disk Storage	Best practices for achieving high availability with Azure virtual machines and managed disks	Create an incremental snapshot for managed disks
Azure Virtual Machine Scale Sets	Azure Virtual Machine Scale Sets
Azure Virtual Machines	Reliability in Virtual Machines	Reliability in Virtual Machines
Azure Virtual Machines Image Builder	Reliability in Azure Image Builder (AIB)	Reliability in Azure Image Builder (AIB)
Azure Virtual Network	Virtual networks and availability zones	Virtual Network - Business Continuity
Azure VPN Gateway	About zone-redundant virtual network gateway in Azure availability zones	Highly Available cross-premises and VNet-to-VNet connectivity

Mainstream services

Product	Availability zone guide	Disaster recovery guide
Azure AI Search	Azure AI Search	Azure AI Search
Azure API Management		How to implement disaster recovery using service backup and restore
Azure App Configuration	How does App Configuration ensure high data availability?	Resiliency and disaster recovery
Azure App Service	Azure App Service	Azure App Service
Azure Application Gateway (V2)	Autoscaling and High Availability
Azure Backup	Reliability in Azure Backup	Reliability in Azure Backup
Azure Batch	Reliability in Azure Batch	Reliability in Azure Batch
Azure Cache for Redis	Enable zone redundancy for Azure Cache for Redis	Configure passive geo-replication for Premium Azure Cache for Redis instances
Azure Container Apps	Reliability in Azure Container Apps	Reliability in Azure Container Apps
Azure Container Registry	Enable zone redundancy in Azure Container Registry for resiliency and high availability	Geo-replication in Azure Container Registry
Azure Data Explorer		Azure Data Explorer - Business continuity
Azure Data Factory	Azure Data Factory data redundancy	BCDR for Azure Data Factory and Azure Synapse Analytics pipelines
Azure Database for MySQL		Azure Database for MySQL- Business continuity
Azure Database for MySQL - Flexible Server	Azure Database for MySQL Flexible Server High availability	Azure Database for MySQL Flexible Server - Restore to latest restore point
Azure Database for PostgreSQL - Flexible Server	Azure Database for PostgreSQL - Flexible Server	Azure Database for PostgreSQL - Flexible Server
Azure Disk Encryption	Redundancy options for managed disks
Azure DNS	Reliability in Azure DNS	Reliability in Azure DNS
Microsoft Entra Domain Services		Create replica set
Azure Firewall	Deploy an Azure Firewall with Availability Zones using Azure PowerShell
Azure Functions	Azure Functions	Azure Functions
Azure Image Builder	Reliability in Azure Image Builder	Reliability inAzure Image Builder
Azure Kubernetes Service (AKS)	Create an Azure Kubernetes Service (AKS) cluster that uses availability zones	Best practices for business continuity and disaster recovery in Azure Kubernetes Service (AKS)
Azure Logic Apps	Protect logic apps from region failures with zone redundancy and availability zones	Business continuity and disaster recovery for Azure Logic Apps
Azure Media Services		High Availability with Media Services and Video on Demand (VOD)
Azure Migrate		Does Azure Migrate offer Backup and Disaster Recovery?
Azure Monitor-Log Analytics	Enhance data and service resilience in Azure Monitor Logs with availability zones	Enable data export
Azure Network Watcher	Service availability and redundancy
Azure Private Link	Azure Private Link availability
Azure Route Server	Azure Route Server FAQ
Azure Storage - Blob Storage	Choose the right redundancy option	Azure storage disaster recovery planning and failover / Azure Blob backup
Azure Stream Analytics		Achieve geo-redundancy for Azure Stream Analytics jobs
Azure Virtual WAN	How are Availability Zones and resiliency handled in Virtual WAN?	Disaster recovery design

Strategic services

Product	Availability zone guide	Disaster recovery guide
Azure Databox		Azure Data Box Disk FAQ
Azure Health Insights	Reliability in Azure Health Insights	Reliability in Azure Health Insights
Azure IoT Hub	IoT Hub high availability and disaster recovery	IoT Hub high availability and disaster recovery
Azure Machine Learning Service		Failover for business continuity and disaster recovery
Azure SignalR Service		Resiliency and disaster recovery in Azure SignalR Service
Microsoft Purview	Reliability for Microsoft Purview	Disaster recovery for Microsoft Purview

Non-regional services (always-available services)

Product	Availability zone guide	Disaster recovery guide
Azure Traffic Manager	Reliability in Azure Traffic Manager	Reliability in Azure Traffic Manager

Azure Service Manager Retirement

Azure Service Manager (ASM) is the old control plane of Azure responsible for creating, managing, deleting VMs and performing other control plane operations, and has been in use since 2011. ASM is retiring in August 2024, and customers can now migrate to Azure Resource Manager (ARM).

For more information on specific retirement dates and migration documentation, see Azure Service Manager Retirement.

Next steps