SkuNotAvailable when trying to create a Azure Virtual Desktop

Question

I'm not sure what I'm doing wrong when trying to create a Host Pool. I've tried another region.

{"details":[{"code":"InvalidTemplateDeployment","message":"{"error":{"code":"InvalidTemplateDeployment","details":[{"code":"SkuNotAvailable",

"message":"The requested VM size for resource 'Following SKUs have failed for Capacity Restrictions: Standard_D2as_v5' is currently not available in location 'centralus'. Please try another size or deploy to a different location or different zone.

See inner errors for details.","details":[{"code":"SkuNotAvailable","message":"The requested VM size for resource 'Following SKUs have failed for Capacity Restrictions:

Standard_D2as_v5' is currently not available in location 'centralus'.

Please try another size or deploy to a different location or different zone. See https://aka.ms/azureskunotavailable for details."}]}}"}]}

Answer 1

Hi System Admin,

actually it is not a configuration mistake, it simply means that VM size Standard_D2as_v5 does not have capacity available in that region right now. Even if the SKU exists in centralus Azure can temporarily block deployments when there is no available hardware capacity for that size. This is very common with popular VM families ))))))))))))).

What u can do is either choose a different VM size in the same family for example try D2s_v5 or another similar SKU or deploy in a different region where capacity exists. Sometimes selecting a specific availability zone instead of no zone also works because capacity can differ per zone.

You can check available SKUs in the region using Azure CLI with az vm list-skus --location centralus --size Standard_D2as_v5 --all and confirm restrictions. But realistically the fastest solution is to pick another similar VM size or another region.

This is a capacity issue on the platform side, not a template or AVD configuration problem.

rgds,

Alex

Answer 2

Hello

Thank you for reaching out Q/A and sharing the deployment error details.

Based on the error message provided, the deployment is failing due to a capacity restriction for the VM size "Standard_D2as_v5" in the Central US region. Azure is currently unable to allocate this VM SKU in that region at the moment, which results in the SkuNotAvailable error during the session host VM deployment for the Azure Virtual Desktop host pool.

This behavior typically occurs when the requested VM size has temporary capacity limitations within a specific region or availability zone.

To proceed, we recommend trying one of the following options:

1. Deploy the session hosts using a different VM size within the same region.
2. Deploy the host pool in a different Azure region where the SKU is available.
3. If an availability zone was selected, try another zone or deploy without zone selection.
4. Retry the deployment after some time, as capacity may become available.

You can also verify which VM sizes are available in the target region using the following commands.

az vm list-skus --location centralus --resource-type virtualMachines --output table

Additionally, please check whether the subscription has sufficient VM quota in the region

az vm list-usage --location centralus --output table

If the quota limit has been reached, you can request a quota increase from the Azure portal.

Reference: Resolve errors for SKU not available

Sizes for virtual machines in Azure

Hope this helps! Please let me know if you have any queries.