Unable to deploy spot instance vm in azure

Question

I was previously able to deploy the VM successfully, however not when I choose it as a Spot Instance.
Unable to deploy spot instance when I have spare Spot vCpu and GPU allocation in EAST ASIA.
Getting this error.

{'code':'DeploymentFailed','message':'At least one resource deployment operation failed. Please list deployment operations for details. Please see https://aka.ms/DeployOperations for usage details.','details':[{'code':'OverconstrainedAllocationRequest','message':'Allocation failed. VM(s) with the following constraints cannot be allocated, because the condition is too restrictive. Please remove some constraints and try again. Constraints applied are:\n - Low Priority VMs\n - Networking Constraints (such as Accelerated Networking or IPv6)\n - Preemptible VMs (VM might be preempted by another VM with a higher priority)\n - VM Size\n'}]}

I was previously able to deploy the VM successfully, however not when I choose it as a Spot Instance. I have tried selecting Spot Instance as both "Capacity Only" and "Price or Capacity" and entering in a price but the deployment failed.

Now I'm unable to deploy the instance at all, whether I choose spot or not. It just hangs on the Deployment Overview page...???

The Resource is N-series in the East Asia region.

could you please tell me the problem?

This is I am trying to deploy .Is there any mistake? what is the reason ? Please tell me

Answer 1

Hello @Elisha George ,

Thank you for reaching out to Microsoft Q&A platform. Happy to answer your question.

Firstly, SPOT deployment has some restrictions and you can find them following this link spot-vms.
The reason for not being able to deploy this NC series VM as SPOT instance is because this SKU is not supported for SPOT

Limitations:
The following VM sizes are not supported for Azure Spot Virtual Machines:
B-series
Promo versions of any size (like Dv2, NV, NC, H promo sizes)

Secondly, the reason why you are not able to deploy the N-series VM at all even without SPOT is probably due to quota limit hit in the specific region for this SKU under your subscription. You could check the quota by searching for "Subscriptions" in global search in azure portal and then look for "Usage + quotas" blade

If there is no quota left, then you can request an increase from the same blade by clicking on "Request Increase". Basically, this creates a support case with azure subscription and quota management team who will help in increasing the quota for the specific SKU in the east Asia region.
If you see the quota available, please share a screenshot of the same with me and I shall further help to diagnose this issue.

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