Paradigm Shift
What do you think is the hardest part about eating sushi? Wouldn’t you agree that it requires a paradigm shift? You have to get over the raw-fish mentality. If you are stuck thinking of sushi as bait, then you will never be a sushi eater. Likewise, the hardest part of the OWI methodology is not the methodology itself, but the paradigm shift. Once you have developed the mentality to focus on response time, you are home free. Sounds simple, but many DBAs struggle in the transition, mainly due to the mental baggage they carry with them from the old school that mainly relied on ratio-based tuning. (We hasten to clarify that not all of the tuning methods from your old school are useless. Some of the methods, such as capacity utilization ...
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