I remember learning (years ago in university) that hard drive failures follow a bathtub curve: https://en.wikipedia.org/wiki/Bathtub_curve https://en.wikipedia.

I remember learning (years ago in university) that hard drive failures follow a bathtub curve: https://en.wikipedia.org/wiki/Bathtub_curve https://en.wikipedia.org/wiki/Bathtub_curve In other words it either fails early or it will last for a while. Can you plot the time to failure distribution for various models to confirm/deny this rule of thumb? I think it'll be a good addition to list of current charts you have since it's a bit more meaningful that overall failure rate.