Fencing agent options for HP BladeSystem / iLO2

Hi,
i've setup 'ipmlan' fencing-agent with RHEV and HP BL460c (iLO2) - it works.

But once i try to use other fencing agents@rhev-h: fence_hpblade / fence_ilo / fence_ilo2 - test results in "test ok, status unknown".
Which one is recommended to use with HP iLO2 and its proper options?

tnx