Create a VM from a Windows Image with 4 Empty Data Disks
{"type": "microsoft.compute/availabilitysets", "apiversion": "2019-03-01", "location": "[parameters('location')]", "name": "[parameters('availabilitysetname')]", "properties": {"platformupdatedomaincount": 20, "platformfaultdomaincount": 2}, "sku": {"name": "aligned"}} 