Nutanix has recommended Order to Upgrade Nutanix component ,as following
Upgrade Prism Central
- Upgrade and run NCC on Prism Central
- Upgrade Prism Central.
- Run NCC.
Upgrade Prism Element
- Upgrade and run NCC.
- Upgrade Foundation
- Run and upgrade Life Cycle Manager (LCM): but dont upgrade any other component such as sata dom
- Upgrade AOS.
- Run and upgrade Life Cycle Manager (LCM): upgrade all other components
- Upgrade Hypervisor
- Run NCC