LVM + multipath + diskreservation on VCS 6.2

Hello

I have questions about the usage of LVM with multipath on VC 6.2.

In our environnement we have :

• VCS 6.2 (I don't have storage fundation)
• The nodes are virtual machine with redhat 6.5.
• The iscsi lun are presented from netapp cluster cmode using ALUA.
• On the redhat nodes we use the default multipath tools => device-mapper-multipath.
• We use LVM on the luns.

The document say the diskreservation is not supported on multipath. Can someone just confirm me that ?

I would like to know if there something to replace diskreservation to prevent lun to be monted from 2 nodes in the same time in my situation.

I know I can use lvm tagging but I not sure it's really a good protection.

Anysuggestion is welcome.

Regards

Mickael