This is my first time patch the Oracle RAC on two node cluster SUN SPAR 64 bit. Please someone can provide full proper step for patching the PSU 184.108.40.206.1 . Current RAC database version 220.127.116.11. My grid home and database home is not shared. I prefer using rolling patching . Evernthough i read the document, i still have some doubt of it.Please follow MOS document & Read me file for detailed steps.