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This article describes reliability support in Azure Chaos Studio. It covers how to configure availability zones and what to expect during a zone-wide outage. For a more detailed overview of reliability in Azure, see Azure reliability.
Availability zone support
Availability zones are physically separate groups of datacenters within an Azure region. When one zone fails, services can fail over to one of the remaining zones.
Azure Chaos Studio supports zone redundancy as the default configuration within a region. Chaos Studio resources are automatically duplicated or distributed across different zones.
Prerequisites
The following regions support availability zones for Chaos Studio:
| Geographic Area | Region |
|---|---|
| Americas | Brazil South |
| Americas | Canada Central |
| Americas | Central US |
| Americas | East US |
| Americas | East US 2 |
| Americas | West US 2 |
| Americas | West US 3 |
| Europe | France Central |
| Europe | Germany West Central |
| Europe | Italy North |
| Europe | North Europe |
| Europe | Sweden Central |
| Europe | UK South |
| Europe | West Europe |
| Asia Pacific | Australia East |
| Asia Pacific | Japan East |
| Asia Pacific | Southeast Asia |
| Asia Pacific | UAE North |
For detailed information on the regional availability model for Azure Chaos Studio see Regional availability of Azure Chaos Studio.
Zone down experience
In the event of a zone-wide outage, you should anticipate a brief degradation in performance and availability as the service transitions to a functioning zone. This interruption does not depend on the restoration of the affected zone, as Microsoft-managed services mitigate zone losses by using capacity from alternative zones. In the event of an availability zone outage, it's possible that a chaos experiment could encounter errors or disruptions, but crucial experiment metadata, historical data, and specific details should remain accessible, and the service should not experience a complete outage.
Cross-region disaster recovery and business continuity
Chaos Studio is a single-region service and doesn't support service-enabled cross-region failover.