Comment Re:Betteridge's Law (Score 1) 237
But he seems to prefer "time since product release" which is far worse than useless -- it is an obviously incorrect way to estimate the age of a drive population and is directly contradicted by the average age data reported in the blog post.
Well, it's better than nothing, so if you have no information, it's a starting point. But if you actually know the age of the drives, it's a significantly worse metric.
With that said, it might be interesting to see whether there are any interesting correlations with the age of the product line as a whole, within the context of a particular brand. As a product line ages, manufacturers frequently do one or more silent revisions, either to improve reliability, cut costs, or both. So it is entirely possible that the products from a given company might consistently become more or less reliable after those silent revisions.
My guess is that newly released products are more likely to have undiscovered flaws, and older products are more likely to get pushed off to lower-quality, second-tier manufacturing plants, so there's probably a range somewhere in the middle where the products are at their best. Of course, that's just a hypothesis.