Good post by Jason Boche (thank you)
Taking a look at my VM Storage Policies compliance in the vSphere Client, I was alerted to a situation that none of my configured virtual machines were compliant with their assigned VM Storage Policy named “Five Nines Compellent Storage”. Oddly enough, the virtual machine home directories and virtual disks were in fact on the correct datastores and showed as compliant a few days earlier. None had been migrated via Storage vMotion or SDRS.
Read on here