Reactivation of Windows SBS 2011 RAID 5 volume fails in Windows 8

I have created a fresh install of Windows 8 Pro (64-bit).  I attempted to import a dynamic disk volume previously created in Windows Server 2008.  After importing the volume Windows marks it as failed and is unable to reactivate/recover. Status is listed as failed in disk part and dink management.  Taking them back to the 2008 R2 machine allows them to be brought back online.  Is there a step I am missing here?