When I take a look at http://kb.vmware.com/selfservice/microsites/search.do?language=en_US&cmd=displayKC&externalId=103795..., I see indeed the in guest is supported
When I take a look at http://pubs.vmware.com/vsphere-50/topic/com.vmware.ICbase/PDF/vsphere-esxi-vcenter-server-50-mscs-gu... page number 9 on top of the page, the document tells RDM is recommended ?
What I am missing?