As I read in the Admin guide, the RDM file (of VMDK file) still needs to be on a VMFS datastore. So we are still stuck with those VMFS datastore only because the raw device mapping files needs to reside on a VMFS datastore.
The disk create command om page 221 of the admin guide tell us:
If the virtual machine
resides on an NFS datastore, you must specify a VMFS datastore for the VMDK file.
I've tested it in our test enviroment and it's working as described in the admin guide. It seems that this is a VMware issue because when I want to move this machine from a VMFS datastore to a NFS datastore. This is not working and I get the message:
"Virtual Disk '...' is a mapped Direct-Access LUN which is not supported on the datastore "nfs_datastore"
I tought this was solved in 6.3 but it's NOT
"Support for VMDKs in NFS and VMFS datastores" on page 37 in the admin guide is not clear to me. I need to do more investigation on this topic.
Greetings,
Kris Boeckx
Pidpa