Instead of creating a farm of Linux machines running on x86 platforms you can replace it with one IBM POWER7 Server. They come in all sizes from a few cores to more than 128 cores. We have compiled a Linux, Appache, MySQL and PHP stack for the POWER7 architecture based on RedHat Enterprise server.
The IBM POWER7 is a scalable and powerful platform that can reduce the size of your datacenter footprint.
If you are looking for a powerful LAMP stack for the POWER7 for your web and application server needs, contact us and we can provide you with additional information.