Unable to start the Virtual Machines in Azure portal

Question

The Virtual machines are showing as Failed in the status because of Zonal Allocation error it self in the Azure portal. And we are not able to start & restart the machines.

Let me know if we can do something from our end to get this issue resolved.

Looking for the quick reply.

Thanks!

Answer 1

Hi Prabhjot Singh ,

Thanks for reaching out to us on the Microsoft Q&A forum.

We understand from your query that you are experiencing a Zonal Allocation error and VM showing as Failed and not able to restart and start the machine.

This error ZonalAllocationFailed will occurs while creating or resizing virtual machines (VMs) in Azure, it means that there isn’t sufficient capacity for the requested VM size in the specified region.

Please follow these steps:

• If you’re using availability zones, try selecting another zone within the same region. It’s possible that a different zone has available capacity for the VM size you need.
• Resize a VM or add a VM to an existing availability set must be tried at the original cluster that hosts the existing availability set. The requested VM size is supported by the cluster, but the cluster may not currently have sufficient capacity.
• If the VM can be part of a different availability set, create a VM in a different availability set (in the same region). This new VM can then be added to the same virtual network.

Stop (deallocate) all VMs in the same availability set, then start all applicable VMs in batch. To stop: Click Resource groups > Resources > Virtual Machines > Stop. After all, VMs stop, navigate to Home > Virtual machines, add an Availability set filter and then select Group by availability set. Select all applicable VMs and click Start.

This step makes sure that a new allocation attempt is run and that a new cluster can be selected that has sufficient capacity.

https://learn.microsoft.com/en-us/troubleshoot/azure/virtual-machines/windows/allocation-failure

If you have any further queries, do let us know.

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