Well, to make it easier (for me LOL), I will take "clustered" dedicated servers as an example (if it does exist). Supposed there are 5 dedicated servers hosting 5 websites. In the conventional (non clustered) system, if server A fails, the website hosted there will be down, because one server hosts one website. If the 5 servers are "clustered", they will work in tandem and serve as a single server. Total load of the 5 websites will be balanced between those 5 servers.
Last edited by webnubie : 12-13-09 at 09:34.
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