Keep getting a "Start operation is not allowed on Virtual Machine. Please check error details."

Question

Keep getting "Start operation is not allowed on Virtual Machine. Please check error details." error as soon as I attempt to allocate the VM. Although this VM is a spot vm, I have been able to allocation (start) it on regular basis in the past till about five days ago.

What have changed? How do I diagnose?

Answer 1

Hi @Half Cloudhill , I understand you're using Azure Spot VM and now you can't start it.

Spot VMs can be stopped if Azure needs capacity for other pay-as-you-go workloads or when the price of the spot instance exceeds the maximum price that you have set. When creating an Azure Spot Virtual Machine, by default, eviction policy is set to Deallocate.

The Deallocate policy moves your VM to the stopped-deallocated state, allowing you to redeploy it later. However, there's no guarantee that the allocation will succeed. If you try to restart a stopped/deallocated VM, Azure will first check whether there is capacity and quota, then VM is deployed.

Since you can't start the VM, possibilities:

• Azure Spot doesn't have capacity for your requested VM type. Try changing the VM type.
• You don't have quota. Check your quota and request an increase, if needed.

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