Reliability guides for Azure services

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

• The reliability architecture overview provides a synopsis about how a service supports reliability. It includes information about which components Azure manages and which components you manage, built-in redundancy features, and how to provision and manage multiple resources, if applicable.

• Transient fault handling describes how a service handles day-to-day transient faults that can occur in the cloud. It also describes how to handle these faults in an application, including information about retry policies, timeouts, and other best practices.

• Availability zones describe zonal and zone-redundant deployment options, traffic routing and data replication between zones, zone-outage scenarios, failback processes, and how to configure resources for availability zone support.

• Multi-region support describes how to configure multi-region or geo-disaster support, traffic routing and data replication between regions, region-down scenarios, failover and failback support, and alternative multi-region support.

Some guides also contain information about the following capabilities:

• Backup support explains who controls backups, where they're stored and replicated, how to recover them, and whether they can be accessed only within a region or across regions.

• Service-level agreements (SLAs), which define and describe the expected uptime, and how the expected uptime changes based on the configuration that you use.

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.

Related content

• Azure services that support availability zones

• Build solutions for high availability by using availability zones