smartctl version 5.38 [x86_64-redhat-linux-gnu] Copyright (C) 2002-8 Bruce Allen Home page is http://smartmontools.sourceforge.net/
Device: DELL PERC H700 Version: 2.10
DELL PERC controllers are not supported.
A newer version of smartmontools does. E.g. the one that comes with CentOS6.