kernel upgrade

Hi,

I would like to know the detail of upgrading a kernel. Im using AIX. Understand that the kernel patch is to be replace under /usr/sap/SYS/exe after uncar

Question :

1) Do we replace the whole folder of exe or the subfolder run ? (I understand

window is run, how about AIX ? )

2) We have to download the kernel for DB independent and dependent right ? If so, how do these 2 kernel updated in the system ? which particular folder ?

Regards