Before using Spot machines in #databricks, it's a good idea to check their eviction rates in your region. Azure Resource Graph Explorer and that simple query will help.

SpotResources 
| where type =~ 'microsoft.compute/skuspotevictionrate/location' 
| where location in~ ('uksouth') 
| where sku.name in~ (
    'Standard_DS3_v2', 'Standard_D96AS_V5'
    )
| project sku.name, properties.evictionRate