?Are Hard Drives Getting Better? Let?s Revisit the Bathtub Curve?
https://www.backblaze.com/blog/are-hard-drives-getting-better-lets-revisit-the-bathtub-curve/
?If you?ve hung around Backblaze for a while (and especially if you?re a >Drive Stats fan), you may have heard us talking about the bathtub curve.
In Drive Failure Over Time: The Bathtub Curve Is Leaking, we challenged
one of reliability engineering?s oldest ideas?the notion that drive
failures trace a predictable U-shaped curve over time.?
?But, the data didn?t agree. Our fleet showed dips, spikes, and plateaus >that refused to behave. Now, after 13 years of continuous data, the
picture is clearer?and stranger. ?
?The bathtub curve isn?t just leaking, and the shape of reliability
might look more like an ankle-high wall at the entrance to a walk-in
shower. The neat story of early failures, calm middle age, and gentle >decline no longer fits the world our drives inhabit. Drives are getting >better?or, more precisely, the Drive Stats dataset says that our drives
are performing better in data center environments.?
I suspect that the hard drive manufacturers are getting better at
telling which drives will fail early.
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