Mostly as a note to myself, on the CLI commands that allow marking storage devices as SSD so they can be used for vSAN (useful for nested environments).
esxcli storage hpp device set -d mpx.vmhba0:C0:T0:L0 -M true
esxcli storage hpp device set -d mpx.vmhba0:C0:T1:L0 -M true
esxcli storage hpp device usermarkedssd list
Tom Fojta's Blog 
Don’t forget https://developer.vmware.com/samples/5388/set-fakescsi-reservations-on-vsan-to-allow-nested-esxi-vms-to-run-vsan#code!