So I bought one of the LES bundles Anthony offered and is trying to set up a small SqlLite-backend HA blog using RoundRobin from Cloudflare and Nginx as the front-end.
Because the way it is set up, any comment could be posted on any one of the four VPS and therefore I am looking for a way to constantly keep the contents among the folder in sync. Bear in mind that these VPS are OpenVZ so no kernel module can be installed and also I hope it won't be too CPU or memory-heavy (I would assume a 5 minutes sync interval would be perfect).