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Source facts

\n

Azure stores a resource group’s resource metadata in the group’s selected region. Microsoft states that temporary unavailability of that region prevents updates to resources in the group because the metadata is unavailable. Resources located in other regions can continue functioning even though those updates are unavailable. Microsoft Learn.

\n

Applicability

\n

Review designs where the resource group and its resources occupy different regions. Identify both locations explicitly. Separate the requirement to keep a workload serving requests from the requirement to modify its Azure configuration during a regional disruption.

\n

DSE recommendation

\n

DSE recommends adding the resource-group location to the application’s regional dependency record. Ask the recovery owner which response actions require resource updates, and check whether the proposed operating plan assumes those actions remain available. For new deployments, evaluate Microsoft’s recommendation to colocate the group and resources alongside the actual application requirements. Do not reorganize an existing production resource group solely to tidy a diagram.

\n

Verification

\n

Inventory the resource group’s location and each relevant resource location, then walk through the documented disruption scenario with the application and platform owners. Mark which steps observe the workload and which attempt an Azure update. Use a tabletop review or approved test design rather than manufacturing a regional outage. Retain the identified change dependency and any revised response steps separately from ordinary application health-test results.

\n

Official references

\n

Microsoft Learn. Source retrieved September 9, 2026.

", "content_text": "Source facts\nAzure stores a resource group’s resource metadata in the group’s selected region. Microsoft states that temporary unavailability of that region prevents updates to resources in the group because the metadata is unavailable. Resources located in other regions can continue functioning even though those updates are unavailable. Microsoft Learn.\nApplicability\nReview designs where the resource group and its resources occupy different regions. Identify both locations explicitly. Separate the requirement to keep a workload serving requests from the requirement to modify its Azure configuration during a regional disruption.\nDSE recommendation\nDSE recommends adding the resource-group location to the application’s regional dependency record. Ask the recovery owner which response actions require resource updates, and check whether the proposed operating plan assumes those actions remain available. For new deployments, evaluate Microsoft’s recommendation to colocate the group and resources alongside the actual application requirements. Do not reorganize an existing production resource group solely to tidy a diagram.\nVerification\nInventory the resource group’s location and each relevant resource location, then walk through the documented disruption scenario with the application and platform owners. Mark which steps observe the workload and which attempt an Azure update. Use a tabletop review or approved test design rather than manufacturing a regional outage. Retain the identified change dependency and any revised response steps separately from ordinary application health-test results.\nOfficial references\nMicrosoft Learn. Source retrieved September 9, 2026.", "content_markdown": "## Source facts\n\nAzure stores a resource group’s resource metadata in the group’s selected region. Microsoft states that temporary unavailability of that region prevents updates to resources in the group because the metadata is unavailable. Resources located in other regions can continue functioning even though those updates are unavailable. [Microsoft Learn](https://learn.microsoft.com/en-us/azure/azure-resource-manager/templates/best-practices).\n\n## Applicability\n\nReview designs where the resource group and its resources occupy different regions. Identify both locations explicitly. Separate the requirement to keep a workload serving requests from the requirement to modify its Azure configuration during a regional disruption.\n\n## DSE recommendation\n\nDSE recommends adding the resource-group location to the application’s regional dependency record. Ask the recovery owner which response actions require resource updates, and check whether the proposed operating plan assumes those actions remain available. For new deployments, evaluate Microsoft’s recommendation to colocate the group and resources alongside the actual application requirements. Do not reorganize an existing production resource group solely to tidy a diagram.\n\n## Verification\n\nInventory the resource group’s location and each relevant resource location, then walk through the documented disruption scenario with the application and platform owners. Mark which steps observe the workload and which attempt an Azure update. Use a tabletop review or approved test design rather than manufacturing a regional outage. Retain the identified change dependency and any revised response steps separately from ordinary application health-test results.\n\n## Official references\n\n[Microsoft Learn](https://learn.microsoft.com/en-us/azure/azure-resource-manager/templates/best-practices). 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Microsoft states that temporary unavailability of that region prevents updates to resources in the group because the metadata is unavailable. Resources located in other regions can continue functioning even though those updates are unavailable. Microsoft Learn.\nApplicability\nReview designs where the resource group and its resources occupy different regions. Identify both locations explicitly. Separate the requirement to keep a workload serving requests from the requirement to modify its Azure configuration during a regional disruption.\nDSE recommendation\nDSE recommends adding the resource-group location to the application’s regional dependency record. Ask the recovery owner which response actions require resource updates, and check whether the proposed operating plan assumes those actions remain available. For new deployments, evaluate Microsoft’s recommendation to colocate the group and resources alongside the actual application requirements. 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