I want to deploy my PHP and Ajax based Dating website to multiple physical servers. Does anyone know the method. Is there possible any method to save the files and setting (and also the user input), on all of the physical server, so that the servers do the following jobs.

1. Servers used as a network, speeding up the process giving a robust thing to the end user.
2. Data to be stored on all the servers' hard drivers, and
3. Every server have the internet connection from different provider, so for example a. if any of the internet providers gets down, or b. there occur any hardware or power failure,

the website still runs, without a break and without any data loss.

Does anyone know about some online course, or some comprehensive tutorials about this topic ?