Real HA cluster implementation

[securitywonks]

lvs in nat mode works nice. If lvs-DR (Direct Routing method) works, then it will reduce load on load balancer much further.

using nfs is nice, having option for nfs failover (active/passive setup) can be more helpful

for web servers, if nginx http server (with php-fpm and fast-cgi to process php), it will be really a big load reducing feature,

coming to mysql servers, organising different databases on different mysql servers, can help make a simple start, and once above components of the multi-server layer 4 load balanced setup are well tuned, it will already show a more scalable picture, implementing mysql clusters etc other mysql server high available concepts can go as next step,

just some thoughts, thank you