RAC install on Linux

We are planning to install Oracle RAC 12.1 on Linux 7.

1. I am looking for a step by step instruction guide if any one has it. Or point me to a good link. I am more interested in the OS settings, os patches, potential trips, etc,

It should be straight forward till I saw today in the official Grid infrastructure install guide that you should disable Transparent Huge pages in Linux and that it is enabled by default. I started wondering what else I could have missed buried in there.

2) Another thing helpful would be any tool that we could use to simulate the current production load in the new env. I considered RAT, but that is out of qn because of the $

Thanks
Orlando.

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