it seems that i will have to re-install AIX again.
the problem is that im not an aix expert im just a DBA so i had to go by myself in this part and there was not enough documents about how to create raw disks for Oracle ASM, what we have is hdisk0 hdisk1 for rootvg (mirrored) hdisk2 oracle vg and the new rawdisk hdisk3 and i thought that every rhdisk is a raw device so in oracle i added rhdisk0 1 2 3 which turrned out to be linked to the other hdisks thats it, but i feel good that i have done this now so i could learn it the hard way and i wont be forgetting this lesson again
thanks everyone for ur help