Udev as alternative for ASMlib in virtual Centos 6

I was trying to setup RAC in virtual environment. My virtual machines are Centos 6.5. Unfortunatelly there is no kmod-oracleasm for default kernel 2.6.32-431. To be completelly true, there is required kernel module, but it is only available for redhat subscribers. There I will describe how to use udev instead of asmlib.