Two are doing just fine with the current stack (elixir), I actually have more problem with gigabit connections getting saturated at some points, but that's just my failure to optimize data that's being sent. Before that I was using nginx module (nginx-push-stream-module) which is also great and way ahead of any other out-of-the-box solution that I know.
Every server has RAID1 by default, plus I keep postrgresql slave on another box and I try to keep up to date backup. I actually never experienced a drive failure there (I currantly have ~10 boxes), but on my dev server at home which runs the same service I got I guess 5 HDDs failures already. Just two of them were server-grade though.
Every server has RAID1 by default, plus I keep postrgresql slave on another box and I try to keep up to date backup. I actually never experienced a drive failure there (I currantly have ~10 boxes), but on my dev server at home which runs the same service I got I guess 5 HDDs failures already. Just two of them were server-grade though.