Create RDM map file:

Login into the ESXi6 shell terminal,   and execute the rdm.sh (  rdm ) to create the RDM map file

Attach / Detach RDM to VM:

Launch vmware vshere client v5.5 to attach /detach the RDM disk, the existed disk  to VM

Delete RDM map file:

Launch vmware web client to delete the RDM disk map file

http://blog.zhenglei.net/?p=255651

http://blog.zhenglei.net/?p=255653