Has anyone updated M5424 to FOS7.0.2d using this level of firmware on the QLogic HBA's? How about these same chassis connected to a DCX at FOS7.2.1a? It doesn't appear at all in the IBM Interoperability Matrix but IBM has approved an RPQ for the compatibility - but that doesn't mean they have tested it. I have mission critical systems running in these Dell blade centers (I know, but not my decision) and I need to be absolutely sure the FAB/OS upgrade doesn't break the connections to storage. Help anyone?