Hi. We're having an issue with VMs that have GPT passthru disks attached. This problem dates back to VMM 2008 and it apperas it still hasn't been fixed.
http://social.technet.microsoft.com/Forums/windowsserver/en-US/13d378a4-93f1-4845-99fa-9172dca588e5/unsupported-vm-configuration
Is there any way to be able to work with these VMs in VMM? Refreshing in VMM does nothing, on the contrary, it breaks the VM's access to the passthru disk. I've observed that when I try to "Repair" the VM from VMM, all it does is a refresh, which in turn removes the passthru disk cluster resource from the VM and it loses access to the disk. The only way to get it back is to Refresh the VM from Failover Cluster Manager.
Env: VMM 2012 R2 (UR3) managing 2 clusters (2008 R2 and 2012) - the issue occurs in both clusters.
Note: there's only 1 GPT passthru disk attached to each VM