@rjt Note to self about creating and managing appliances at xe cli.
xe help --all | egrep -i '(appliance)' # find xe appliance related commands.
appliance-assert-can-be-recovered,
appliance-create,
appliance-destroy,
appliance-list,
appliance-param-clear,
appliance-param-get,
appliance-param-list,
appliance-param-set,
appliance-recover,
appliance-shutdown,
appliance-start,