After a server reboot the HyperV lun for the guests does not initialise.
If you go to LUN MGT in SnapDrive and go connect LUN it sayss it is already connected!
If you go to HPNCU, disable Jumbo frames and reboot the server it all works and the E:\ LUN connects no problem.
I have also noticed the same behaviour within a VM if Jumbo frames are turned on on the Virtual NIC, reboot the VM and the LUN does not connect. Change the V NIC to Jumbo frames disabled, reboot the VM and all is OK!
Any one had similar issues or can advise on a way forward?