These two wiki explain well what this number mean. [1] https://en.wikipedia.org/...

		alvis on Nov 4, 2017 \| parent \| context \| favorite \| on: 14TB Hard Drives Now Available These two wiki explain well what this number mean. [1] https://en.wikipedia.org/wiki/Reliability_engineering [2] https://en.wikipedia.org/wiki/Survival_analysis