When you resize a VM to a series that only supports SSD you get the following warning
You've chosen to use a standard disk on a size that supports premium disks. This could impact operating system performance and is not recommended. Consider using premium storage (SSD) instead.
If the VM does not require SSD due to its usage is this really something to worry about?
We have a few VM that is set up with HDD and we are going to move them to the Azure B-Series VMs as a cost-saving exercise.