Merge pull request #2 from johndowns/azure-functions-update

Azure Functions zone redundancy how-to - Edits

Author: glynnniall

articles/azure-functions/functions-zone-redundancy.md

@@ -4,8 +4,6 @@ description: Learn how to configure zone redundancy for Azure Functions, create
 author: glynnniall
 ms.author: glynnniall
 ms.topic: how-to
-ms.service: azure-functions
-ms.custom: references_regions
 ms.date: 02/19/2026
 zone_pivot_groups: reliability-functions-hosting-plan
 
@@ -14,7 +12,7 @@ zone_pivot_groups: reliability-functions-hosting-plan
 
 # Configure zone redundancy for Azure Functions
 
-Zone redundancy enables your function apps to be resilient to problems in Azure availability zones, so your app remains available when a datacenter or zone has an outage. This article provides step-by-step guidance for configuring Azure Functions to be zone-redundant. For information about how availability zones work with Azure Functions, see [Reliability in Azure Functions](/azure/reliability/reliability-functions).
+Zone redundancy enables your function apps to be resilient to problems in Azure availability zones, so your app remains available when a datacenter or zone has an outage. This article provides step-by-step guidance for configuring Azure Functions to be zone-redundant, depending on your hosting plan. For information about how availability zones work with Azure Functions, see [Reliability in Azure Functions](/azure/reliability/reliability-functions).
 
 Availability zone configuration for Azure Functions depends on your [Functions hosting plan](/azure/azure-functions/functions-scale):
 
@@ -25,22 +23,47 @@ Availability zone configuration for Azure Functions depends on your [Functions h
 | [Dedicated (App Service) plan](/azure/azure-functions/dedicated-plan) | GA | See [Configure availability zones for App Service](../app-service/how-to-zone-redundancy.md). |
 | [Consumption plan](/azure/azure-functions/consumption-plan) | n/a | Not supported by the Consumption plan. |
 
-## Prerequisites
+::: zone pivot="flex-consumption-plan"
+
+> [!IMPORTANT]  
+> Before configuring zone redundancy, review the requirements and details listed in [Reliability in Azure Functions - Resilience to availability zone failures](/azure/reliability/reliability-functions?pivots=flex-consumption#resilience-to-availability-zone-failures).
 
-Before configuring zone redundancy, review the requirements and details listed in [Reliability in Azure Functions - Resilience to availability zone failures](/azure/reliability/reliability-functions#resilience-to-availability-zone-failures).
+::: zone-end
 
 ::: zone pivot="premium-plan"
 
-> [!NOTE]
+> [!IMPORTANT]  
+> Before configuring zone redundancy, review the requirements and details listed in [Reliability in Azure Functions - Resilience to availability zone failures](/azure/reliability/reliability-functions?pivots=premium#resilience-to-availability-zone-failures).
+> 
 > You can only enable availability zones in the plan when you create your app. You can't convert an existing Premium plan to use availability zones.
 
 ::: zone-end
 
+::: zone pivot="flex-consumption-plan"
+
+## View regions that support availability zones
+
+Zone-redundant Flex Consumption plans can be deployed into a specific set of regions. For the current list, use the Azure CLI:
+
+1. If you haven't done so already, install and sign in to Azure using the Azure CLI:
+
+    ```azurecli
+    az login
+    ```
+
+1. Use the [`az functionapp list-flexconsumption-locations`](/cli/azure/functionapp#az-functionapp-list-flexconsumption-locations) command with the `--zone-redundant=true` argument, which returns a list of regions that currently support zone-redundant Flex Consumption plans:
+
+    ```azurecli-interactive
+    az functionapp list-flexconsumption-locations --zone-redundant=true --query "sort_by(@, &name)[].{Region:name}" -o table
+    ```
+
+::: zone-end
+
 ## Create a zone-redundant function app
 
 ::: zone pivot="flex-consumption-plan"
 
-Follow these steps to create a zone-redundant Flex Consumption plan and app.
+Follow these steps to create a zone-redundant Flex Consumption plan when you create your app.
 
 #### [Azure portal](#tab/azure-portal)
 
@@ -63,7 +86,7 @@ Follow these steps to create a zone-redundant Flex Consumption plan and app.
 
     |Setting|Suggested value|Notes for zone redundancy|
     |-------|---------------|-------------------------|
-    |**Storage account**|A [zone-redundant storage account](/azure/azure-functions/storage-considerations#storage-account-requirements)|As described in the [prerequisites](#prerequisites) section, we strongly recommend using a zone-redundant storage account for your zone-redundant function app.|
+    |**Storage account**|A [zone-redundant storage account](/azure/azure-functions/storage-considerations#storage-account-requirements)|As described in the [reliability guide for Azure Functions](/azure/reliability/reliability-functions?pivots=flex-consumption#resilience-to-availability-zone-failures), we strongly recommend using a zone-redundant storage account for your zone-redundant function app.|
   
 1. For the rest of the function app creation process, create your function app as normal. There are no settings in the rest of the creation process that affect zone redundancy.
 
@@ -183,7 +206,7 @@ Follow these steps to create a zone-redundant Premium plan and app.
 
     |Setting|Suggested value|Notes for zone redundancy|
     |-------|---------------|-------------------------|
-    |**Storage account**|A [zone-redundant storage account](/azure/azure-functions/storage-considerations#storage-account-requirements)|As described in the [prerequisites](#prerequisites) section, we strongly recommend using a zone-redundant storage account for your zone-redundant function app.|
+    |**Storage account**|A [zone-redundant storage account](/azure/azure-functions/storage-considerations#storage-account-requirements)|As described in the [reliability guide for Azure Functions](/azure/reliability/reliability-functions?pivots=premium#resilience-to-availability-zone-failures), we strongly recommend using a zone-redundant storage account for your zone-redundant function app.|
 
 1. For the rest of the function app creation process, create your function app as normal. There are no settings in the rest of the creation process that affect zone redundancy.