title: Elasticsearch: How much better read-only performance is 2 or 3 zones vs 1 zone?
body: <p>If you are not indexing anything, I would have suspected that having three zones of an es cluster should be roughly the same performance as having three one-zone es clusters that shared the work. Is this thinking correct or am I misunderstanding how zones work? I understand the primary benefit of dual-zone is availability, just wondering if it 'doubles' or 'triples' performance for read-only processes at the same time!</p>