All, make sure you implement this hotfix on Win2012 machines with MPIO:

2853466 - Windows does not create a memory dump file when a Stop error occurs in Windows 8 or Windows Server 2012
http://support.microsoft.com/kb/2853466/EN-US

This issue occurs because Windows Crash Dump Driver does not use the correct MPIO path to create the dump log.

 

\Rob