Hello,
In theory, would it be efficient to follow this upgrade path?
1) New host configured to 6.5 with embedded PSC and Vcenter as an appliance.
2) Migrate VM's from server 1 from cluster 1 to the new host. Upgrade server 1 to 6.5. Test. Migrate VM's back from the new host to server 1.
3) repeat for each host (4 in the cluster).
I've been reading this guide which may help others vSphere upgrade: in-place or fresh install? | Settlersoman - A settler in the SDDC world.
Trying to keep this simple! Appreciate any thoughts.