I need to create VM instance with D8as V5 series. It not showing the size while creating the Instance.

Hello,

Thank you for reaching out regarding the availability of the D8as_v5 VM size during virtual machine creation.

Based on your query, this behavior is typically related to region availability, subscription quota limits, or restrictions on supported VM SKUs. Please review the following steps to identify and resolve the issue:

1. Verify VM size availability in the selected region

Not all VM sizes are available in every Azure region.

• While creating the VM, try selecting a different region (e.g., East US, West Europe).
• Alternatively, check available sizes using Azure CLI:

    az vm list-sizes --location <region>
  

If the D8as_v5 size is not listed, it indicates that the SKU is not supported in that region.

2.Check subscription quota limits

Even if the size is available, it may not be visible if the quota for that VM family is exhausted.

• Navigate to Azure Portal → Subscriptions → Usage + quotas
• Look for Dv5-series or Dasv5-series vCPUs usage.

If quota is insufficient, request an increase:

• Go to Help + Support → New support request → Quota
• Select the required region and VM family (Dasv5).

3.Validate subscription type restrictions

Certain subscription types (e.g., Free Trial, Student, or limited offers) may restrict access to specific VM SKUs.

• If applicable, try using another subscription (Pay-As-You-Go / Enterprise Agreement).

4. Use CLI / PowerShell to list available VM SKUs

You can confirm availability with the below command:

az vm list-skus --location <region> --size Standard_D8as_v5 --all --output table

5.Check for capacity Crunch

In some scenarios, the size may be temporarily unavailable due to capacity limitations in the selected region.

• Retry in a different zone or region
• Try deploying without zone selection

Links:
https://learn.microsoft.com/en-us/azure/virtual-machines/sizes/overview?tabs=breakdownseries%2Cgeneralsizelist%2Ccomputesizelist%2Cmemorysizelist%2Cstoragesizelist%2Cgpusizelist%2Cfpgasizelist%2Chpcsizelist
https://learn.microsoft.com/en-us/azure/virtual-machines/sizes#vm-sizes
https://learn.microsoft.com/en-us/azure/azure-resource-manager/management/azure-subscription-service-limits#virtual-machines
https://learn.microsoft.com/en-us/azure/azure-portal/supportability/per-vm-quota-requests

Thanks,
Manish.

Hi @Gurabasu Irale ,

could you please verify the quota for the DasV5 VM series in your Azure Subscription (filtering by region and key word is possible):

In which region are you trying to deploy the D8as V5 VM instance?

(If the reply was helpful please don't forget to upvote and/or accept as answer, thank you)

Regards

Andreas Baumgarten

Go to the Azure Portal, search for "Quotas" in the top bar, click on Compute, filter by your region, and search for "Dasv5". You'll see "Standard Dasv5 Family vCPUs" — just click the pencil icon next to it, request at least 8 vCPUs, and submit. Most of the time it gets approved automatically within minutes.

Also, when you're on the VM creation page, make sure you click "See all sizes" and directly search "D8as" in the search box. Sometimes it's just hidden because of default filters applied on that page.

One more thing, double check that the region you selected actually supports Dasv5 series. Not all regions have it. If you're flexible, try switching to East US, West US 2, or West Europe, those regions almost always have the Dasv5 sizes available.