Increase VM-family vCPU quotas

Azure Resource Manager enforces two types of vCPU quotas for virtual machines:

  • standard vCPU quotas
  • spot vCPU quotas

Standard vCPU quotas apply to pay-as-you-go VMs and reserved VM instances. They are enforced at two tiers, for each subscription, in each region:

  • The first tier is the total regional vCPU quota.
  • The second tier is the VM-family vCPU quota such as D-series vCPUs.

This article shows how to request increases for VM-family vCPU quotas. You can also request increases for vCPU quotas by region or spot vCPU quotas.

Increase a VM-family vCPU quota

To request a standard vCPU quota increase per VM-family from Usage + quotas:

  1. In the Azure portal, search for and select Subscriptions.

  2. Select the subscription whose quota you want to increase.

  3. In the left pane, select Usage + quotas.

  4. In the main pane, find the VM-family vCPU quota you want to increase, then select the pencil icon. The example below shows Standard DSv3 Family vCPUs deployed in the East US region. The Usage column displays the current quota usage and the current quota limit.

  5. In Quota details, enter your new quota limit, then select Save and continue.

    Screenshot of the Usage + quotas pane.

Your request will be reviewed, and you'll be notified whether the request is approved or rejected. This usually happens within a few minutes. If your request is rejected, you'll see a link where you can open a support request so that a support engineer can assist you with the increase.

Note

If your request to increase your VM-family quota is approved, Azure will automatically increase the regional vCPU quota for the region where your VM is deployed.

Tip

When creating or resizing a virtual machine and selecting your VM size, you may see some options listed under Insufficient quota - family limit. If so, you can request a quota increase directly from the VM creation page by selecting the Request quota link.

Increase a VM-family vCPU quota from Help + support

To request a standard vCPU quota increase per VM family from Help + support, create a new support request in the Azure portal.

  1. For Issue type, select Service and subscription limits (quotas).

  2. For Subscription, select the subscription whose quota you want to increase.

  3. For Quota type, select Compute-VM (cores-vCPUs) subscription limit increases.

    Screenshot showing a support request to increase a VM-family vCPU quota in the Azure portal.

From there, follow the steps as described above to complete your quota increase request.

Increase multiple VM-family CPU quotas in one request

You can also request multiple increases at the same time (bulk request). Doing a bulk request quota increase may take longer than requesting to increase a single quota.

To request multiple increases together, first go to the Usage + quotas page as described above. Then do the following:

  1. Select Request Increase near the top of the screen.

  2. For Quota type, select Compute-VM (cores-vCPUs) subscription limit increases.

  3. Select Next to go to the Additional details screen, then select Enter details.

  4. In the Quota details screen:

    Screenshot showing the Quota details screen and selections.

    1. For Deployment model, ensure Resource Manager is selected.
    2. For Locations, select all regions in which you want to increase quotas.
    3. For each region you selected, select one or more VM series from the Quotas drop-down list.
    4. For each VM Series you selected, enter the new vCPU limit that you want for this subscription.
    5. When you're finished, select Save and continue.

  5. Enter or confirm your contact details, then select Next.

  6. Finally, ensure that everything looks correct on the Review + create page, then select Create to submit your request.

Next steps