Hello Andrew, The size for jumbo frames that you want to use for the nics in MS2012 is 9014.  It will pass the data in the correct frame without any issues.   Please let us know if you have any other questions.
Hi, I am trying to configure Jumbo frames on my MD3200i. I have increased the jumbo frames to 9000 in the storage management interface for all NICs and have set my switch to use Jumbo frames but when I go to Windows 2012 the options for jumbo frames on the NIC are 4088 or 9014, which is obviously bigger than the 9000 on the MD3200i. My question is, which setting should I use? My understanding is that a mismatch of the Jumbo frame size will cause more problems than it solves, is this correct?  Thanks for any and all advice.  Andrew.
Jumbo frames on MD3200i