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Copy file name to clipboardExpand all lines: support/azure/app-service/create-delete-resources-faq-new.md
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@@ -19,23 +19,22 @@ This article answers common questions about creating and deleting [web apps in A
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## Create a web app in Azure App Service
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**What if I create a web app with a duplicate name as another one?**
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### What if I create a web app with a duplicate name as another one?
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We can't create a web app with a name that already exists in Azure. The web app name is part of the web app's URL, so it must be unique among all Azure App Service web apps.
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**How can I create an Azure App Service web app in a region that's unavailable in the subscription?**
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### How can I create an Azure App Service web app in a region that's unavailable in the subscription?
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Certain Azure regions require customers to go through a request process to gain access. For more information, see the [Azure region access request process](../general/region-access-request-process.md) and [Azure App Service available by region](https://azure.microsoft.com/global-infrastructure/services/?products=app-service®ions=all).
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**What if the requested SKU of the App Service plan isn't available in the resource group?**
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### What if the requested SKU of the App Service plan isn't available in the resource group?
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Your App Service deployments might not have specific SKUs available due to constraints (for example, the SKU isn't available in the region).
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If the requested SKU isn't available in the resource group, you must create a new App Service Plan in a new resource group in the same region or in the same resource group using a different region.
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If you want to reuse the same resource group and region, you must delete all the App Services, App Service plans, and `Microsoft.Web/Certificates` resources and then create the desired SKU in this resource group. Be aware that migrating App Services originating in this resource group to another resource group won't unblock the creation.
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**I’m getting the following error - “This region has quota of 0 instances for your subscription. Try selecting a different region or SKU." You might also consistently experience resource creation issues in a particular region.**
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### I’m getting the following error - “This region has quota of 0 instances for your subscription. Try selecting a different region or SKU." You might also consistently experience resource creation issues in a particular region.
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This means your subscription has no available quota for the selected region. You have two options:
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## Delete or restore web apps in Azure App Service
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**If I delete all my web apps, am I still charged?**
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### If I delete all my web apps, am I still charged?
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Yes, charges still apply unless you delete the App Service plan that the web app runs on and all its web apps.
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To stop all billing associated with your App Service, delete the App Service plan or scale the App Service plan to the free tier. For more information, see [How much does my App Service Plan cost?](/azure/app-service/overview-hosting-plans#how-much-does-my-app-service-plan-cost) and [Plan and manage costs for Azure App Service](/azure/app-service/overview-manage-costs).
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**I can't create or delete an Azure App Service web app due to a permission error. What permissions do I need to create or delete a web app?**
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### I can't create or delete an Azure App Service web app due to a permission error. What permissions do I need to create or delete a web app?
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You need at a minimum Contributor access on the resource group to deploy App Services. If you have Contributor access only on the App Service plan and web app, it won't allow you to create the app service in the resource group.
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For more information, see [Azure built-in roles](/azure/role-based-access-control/built-in-roles).
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**I'm trying to delete my App Service plan, but I'm getting the following error - "Storage usage quota exceeded. Can't update or delete a server farm. Please make sure your file system storage is below the limit of the target pricing tier". How and where do I check the file system storage limit?**
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### I'm trying to delete my App Service plan, but I'm getting the following error - "Storage usage quota exceeded. Can't update or delete a server farm. Please make sure your file system storage is below the limit of the target pricing tier". How and where do I check the file system storage limit?
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During the deletion process, we calculate the usage of the remaining App Service plans. If they're above the remaining limit, then this error appears.
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-[App Service limits - Storage](/azure/azure-resource-manager/management/azure-subscription-service-limits#app-service-limits)
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-[App Service pricing](https://azure.microsoft.com/pricing/details/app-service/windows)
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**Is there a way to list the deleted web apps for my App Service subscription?**
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### Is there a way to list the deleted web apps for my App Service subscription?
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You can run `Get-AzDeletedWebApp` to get the list of the web apps that were deleted within the last 30 days in your Subscription ID. Deleted apps are purged from the system 30 days after the initial deletion. After an app is purged, it can't be recovered. For more information, see [List deleted apps](/azure/app-service/app-service-undelete#list-deleted-apps).
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**How do I restore a deleted web app or a deleted App Service plan?**
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### How do I restore a deleted web app or a deleted App Service plan?
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If the web app was deleted within the last 30 days, you can restore it using `Restore-AzDeletedWebApp`. For more information, see:
Copy file name to clipboardExpand all lines: support/azure/app-service/scaling-web-app-faq-new.md
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## Scale web app
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**How do I scale up a Web App?**
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### How do I scale up a Web App?
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You can scale up a Web App by using the [Azure portal](https://portal.azure.com). On your Web App page, select **Scale Up (App Service Plan)** from the left menu. For more information, see [Scale up an app in Azure App Service](/azure/app-service/manage-scale-up).
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**Is there any further action I need to perform before scaling up a Free App Service Plan?**
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### Is there any further action I need to perform before scaling up a Free App Service Plan?
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Before you switch an App Service Plan from the Free tier, remove the [spending limits](https://azure.microsoft.com/pricing/spending-limits/) for your Azure subscription. To view or change options for your Microsoft Azure App Service subscription, see [Microsoft Azure Subscriptions - Remove spending limits](/azure/cost-management-billing/manage/account-admin-tasks#remove-spending-limit).
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**Is there any instance limitation when scaling a Web App?**
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### Is there any instance limitation when scaling a Web App?
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Yes, the limitation depends on the tier of the App Service Plan. For more information, see [App Service limits](/azure/azure-resource-manager/management/azure-subscription-service-limits#app-service-limits).
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**Can I scale a Standard App Service Plan for more than 10 instances?**
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### Can I scale a Standard App Service Plan for more than 10 instances?
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The Standard App Service Plan tier doesn't support more than 10 instances. You can move to a Premium App Service Plan and get the benefit of having 30 instances (in selected regions) per App Service Plan. To check the instance limit per pricing tier, see [App Service limits](/azure/azure-resource-manager/management/azure-subscription-service-limits#app-service-limits).
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**Can I configure App Services on the same App Service Plan with a different number of instances?**
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### Can I configure App Services on the same App Service Plan with a different number of instances?
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You can configure it by enabling Per-App Scaling, and changing App Service's **numberOfWorkers** property to the desired instance count. For more information, see [Per-App Scaling](/azure/app-service/manage-scale-per-app#recommended-configuration-for-high-density-hosting).
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**Why does scale up for my Web App also trigger scale up for another Web App?**
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### Why does scale up for my Web App also trigger scale up for another Web App?
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Scaling happens on the entire App Service Plan. If you host multiple App Services in the same App Service Plan, all App Services in this App Service Plan scale up.
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**Why isn't autoscale working as expected?**
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### Why isn't autoscale working as expected?
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You might be running into a scenario where the system intentionally chooses not to scale to avoid an infinite loop due to "flapping." This behavior usually happens when there isn't an adequate margin between the scale-out and scale-in thresholds. For more information about how to avoid "flapping" and other autoscale best practices, see [Autoscale best practices](/azure/azure-monitor/autoscale/autoscale-best-practices).
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**How do I determine when an autoscale rule triggered scaling?**
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### How do I determine when an autoscale rule triggered scaling?
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You can retrieve scale history from the activity log. Whenever your resource scales up or down, an event is logged in the activity log. You can view the scale history of your resource for the past 24 hours by switching to the **Run history** tab. To view the complete scale history (for up to 90 days), select **Click here to see more details**. For more information, see [View the scale history of your resource](/azure/azure-monitor/autoscale/autoscale-get-started#view-the-scale-history-of-your-resource).
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**Why does autoscale sometimes scale only partially?**
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### Why does autoscale sometimes scale only partially?
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Autoscale triggers when metrics exceed preconfigured boundaries. Sometimes, you might notice that the capacity is only partially filled compared to what you expected. This behavior might occur when the number of instances you want isn't available. In that scenario, autoscale partially fills in with the available number of instances. Autoscale then runs the rebalance logic to get more capacity. It allocates the remaining instances, and this allocation might take a few minutes. If you don't see the expected number of instances after a few minutes, it might be because the partial refill was enough to bring the metrics within the boundaries. Or, autoscale might have scaled down because it reached the lower metrics boundary.
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**When I scale up an App Service Plan to a Premium V3 tier, the "Premium V3 isn't supported for this scale unit. Please consider redeploying or cloning your app." error occurs. What should I do?**
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### When I scale up an App Service Plan to a Premium V3 tier, the "Premium V3 isn't supported for this scale unit. Please consider redeploying or cloning your app." error occurs. What should I do?
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The Premium V3 feature requires the site to run on the newest hardware infrastructure. To scale up an App Service Plan to Premium V3, the Web App must be running in an App Service deployment that supports PremiumV3. For more information, see [Scale up from an unsupported resource group and region combination](/azure/app-service/app-service-configure-premium-tier#scale-up-from-an-unsupported-resource-group-and-region-combination).
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**I'm unable to scale up or scale down the App Service Plan due to the "You have exceeded the maximum amount of scale changes within the past hour (XX changes and limit is XX)" error. What should I do?**
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### I'm unable to scale up or scale down the App Service Plan due to the "You have exceeded the maximum amount of scale changes within the past hour (XX changes and limit is XX)" error. What should I do?
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To avoid this issue, don't perform scaling operations that release more than XX instances in an hour. Every time you release an instance during a scale-down operation, the instance reboots to ensure the next App Service Plan gets a clean instance. When you perform too many scaling operations in quick succession, instance reboots can cause performance problems for other App Services. Therefore, there's a throttling mechanism for scaling that prevents you from executing scaling operations more than the acceptable limit in quick succession.
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**My Web App is using the Diagnostic setting `AppServiceFileAuditLogs` and I'm unable to scale the App Service Plan from Premium V2 to the Basic tier. What should I do?**
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### My Web App is using the Diagnostic setting `AppServiceFileAuditLogs` and I'm unable to scale the App Service Plan from Premium V2 to the Basic tier. What should I do?
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The file change audit logs `AppServiceFileAuditLogs` are only available for App Services in Premium, PremiumV2, and Isolated App Service Plans. If you need `AppServiceFileAuditLogs`, you can't scale down to the Basic tier. To have these audit logs available, configure your App Service Plan for Premium or higher tier.
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**I'm getting the "App Service Plans with fewer than 3 workers aren't allowed for zone redundancy. Requested number of workers: number" error. What should I do?**
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### I'm getting the "App Service Plans with fewer than 3 workers aren't allowed for zone redundancy. Requested number of workers: number" error. What should I do?
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[Availability zone support](/azure/reliability/reliability-app-service#availability-zone-support) requires at least three instances. Verify if the App Service Plan has zone redundancy enabled and if you have autoscale on the App Service Plan. If so, correct the autoscale rule to not set the number of instances to a value less than three.
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