Allocation failures when deploying custom/gallery/marketplace Linux images

Applies to: ✔️ Linux VMs

An allocation error arises in situations when the new VM request is pinned to a cluster that either cannot support the VM size being requested, or does not have available free space to accommodate the request.

Cause 1: The cluster cannot support the requested VM size

To resolve this issue, retry the request using a smaller VM size. If the size of the requested VM cannot be changed, follow these steps:

1. Stop all the VMs in the availability set by selecting Resource groups > your resource group > Resources > your availability set > Virtual Machines > your virtual machine > Stop.
2. After all the VMs stop, create the new VM in the desired size.
3. Start the new VM first, and then select each of the stopped VMs and select Start.

Cause 2: The cluster does not have free resources

To resolve this issue, retry the request at a later time. If the new VM can be part of a different availability set, follow these steps:

1. Create a new VM in a different availability set (in the same region).
2. Add the new VM to the same virtual network.

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