[Users] How to force remove hosts, storage, datacenters

Hello, I have some inconsistencies so that I would like to reinitialize my datacenter. It is 3.2.1 on f18 engine and f18 host it consists of one host and one local_on_host storage domain I'm not able to delete the host. It results as unassigned and so I cannot delete it, but if I try to remove storage or datacenter I get: storage: destroy --> approve Error while executing action: Cannot destroy the master Storage Domain from the Data Center without another active Storage Domain to take its place. -Either activate another Storage Domain in the Data Center, or remove the Data Center. -If you have problems with the master Data Domain, consider following the recovery process described in the documentation, or contact your system administrator. datacenter: force remove --> approve Error: Cannot remove Repository while there are Hosts that are not in Maintenance mode. what can I do to force remove a host? The maintenance label is greyed out and it results as unassigned.... Thanks, Gianluca