regarding Ansible failover, AFAIK, a mapping file must be generated before running failover.
then, should I periodically generate a new mapping file to reflect the latest structure of the environment?

2)

I guess Ansible failover uses OVF_STOREs to restore the environment and OVF_STOREs in storage domains are updated every 1 min as default.
then, how to recover the changes made in the meantime?