After more than a year using Nginx+PHP in FastCGI mode and WP-Cache, the only thing I can say it’s that this is THE SOLUTION in order que get more of your servers. It’s solves 95% of the situations or problems on a website powered by PHP and MySQL.
Some months ago, I tried the WP-SuperCache plugin, but it didn’t work and it doesn’t work nowadays actually. The problem is that the plugin doesn’t write to the disk. I have checked all the things I can: users on execution, rights on the folders, path’s and so on.
Any though on this? Or any thing I can try?