VMSS issue Cores quota. Additional details - Deployment Model

Question

Trying resize the VMSS to optimize the cost but getting following error. I am using VMSS with Kubernetes. This is happening on dev and stg srever both.

Please suggest

Answer 1

Hello Rajinish,

Thank you for reaching out.

The VMSS resize operation is failing because the subscription currently does not have sufficient vCPU quota available for the Standard DADSv5 VM family in the Canada Central region.

This indicates that while the region is enabled for your subscription, no quota has been allocated yet for this specific VM family. Since VM Scale Sets (including AKS node pools) consume regional VM-family quota, the resize cannot proceed until the quota is increased.

Please follow the steps below to request a quota increase:

Azure Portal > Subscriptions > Usage + quotas or use the link: https://portal.azure.com/#view/Microsoft_Azure_Capacity/QuotaMenuBlade/~/myQuotas

In the quota page, please review: Total Regional vCPUs, VM family quota you are trying to create the session host (you are trying to create session host of Standard DADSv5 size quota in canada central).

Request a Quota Increase from the Yes button under adjustable column, once you click on Yes, you'll see a page like below to create the support ticket (Go via Contact Support) and continue to follow the instructions of the page and create the quota request accordingly.

For detailed guidance on increasing quota request, please refer: https://learn.microsoft.com/en-us/azure/quotas/per-vm-quota-requests#request-an-increase-for-adjustable-quotas

Once the request is approved by the Azure Capacity team. please retry the VMSS resize / AKS node pool update and it should complete successfully.

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