Steps to remove PowerPath software, cleanup ODM and reinstall PowerPath varyoff Volume Group (varyoffvg )/etc/rc.agent stop (if you have clariion devices)Remove paths from Powerpath configuration  
powermt remove hba=all Delete all hdiskpower devices lsdev -Cc disk -Fname | grep power | xargs -n1 rmdev -dl Remove the PowerPath driver instance rmdev -dl powerpath0 Delete all hdisk