Nginx - How do yo sync data across web servers?

Hello,

I am in the process of designing the underlying infrastructure for a Joomla CMS that will operate on top of NGINX. The site needs to be resilient so that in the event of an outage the site can remain live.

I had planned on having 2 web servers and 2 database servers that would be split between our two datacentres and load balanced via Citrix Netscalers. My question is, where should I keep the site data and how would I replicate it?

I have looked into NFS Servers that are clustered or perhaps keeping the site data on the web front ends and using a tool like csync to replicate and synchronise. Does NGINX provide any features that can do this?

Any advice would be appreciated.

Thanks,