3 ms·
> If you model drive failure as a Poisson Process (each drive flips a coin each day with probability of failure x) IIRC the Poisson distribution applies when t
by titzer 9y ago
> If you model drive failure as a Poisson Process (each drive flips a coin each day with probability of failure x)
IIRC the Poisson distribution applies when the rate is roughly constant per interval of time, which is not exactly the same as a probability of x per interval of time. (Failures are independent in the latter, not in the former).
- mrtnmcc 9y agoPlease see Poisson Process, which is different than Poisson distribution, http://www.randomservices.org/random/poisson/index.html http://www.randomservices.org/random/poisson/index.html .. failures are indeed independent.