You can use either Unisphere Server Utility or Unisphere Host Agent to register your host to EMC storage. You can even manually register the host without installing any tool on your host.  For details please generate the step-by-step "Attach Server" guide on VNX documentation portal: [URL] or CLARiiON support site: [URL] , [URL]
Hi, Please when I wish to import an disk group from EMC,on a host-server,then this host must register himself to EMC,by sending IP and after that the server could import(see) the LUNs from this disk group?tnx so much.
host registration