Look forward to see what the follow-up post has to say. I've encountered these situations and solved it using common sense that might vary case by case. In one

Look forward to see what the follow-up post has to say. I've encountered these situations and solved it using common sense that might vary case by case. In one case we had 3 types of database servers: writer, normal-query, slow-query. The last one was added because certain queries would use up significant cpu and i/o.