Spot Priority Mix

Spot Priority Mix (public preview) is a feature that allows you to mix and match regular VMs with Spot VMs in a VM scale set and gives a cost advantage. Spot Priority Mix only works with the flexible orchestration mode of VM Scale Sets. Using this feature, you can reduce your compute cost by adding discounted Spot VMs to the scale set, and at the same time, you can still maintain minimum compute capacity by allocating minimum uninterruptible VMs. This will guarantee that all your VMs won’t be taken away at the same time as part of the eviction process. Your leftover regular VMs will be continuing to serve requests while new VMs are being provisioned.

A custom percentage distribution can be configured across Spot and regular VMs. Scale-out and scale-in operations are orchestrated automatically to achieve the desired distribution by selecting the appropriate number of VMs to be created or deleted.

Let’s look at how to create a VM scale set with Spot...