PoBoy
Innovator
http://www.extremetech.com/computing/171700-two-years-later-hdd-prices-settle-back-to-normal
http://www.extremetech.com/computing/170748-how-long-do-hard-drives-actually-live-for
http://www.extremetech.com/computing/170748-how-long-do-hard-drives-actually-live-for
The two year return time isn’t particularly surprising if you consider that the drive manufacturers themselves had every reason to draw out higher prices and earn some profits in the process.
There are three distinct failure phases — and, correspondingly, three distinct ways in which hard drives die. Failures in the first year are primarily caused by manufacturing defects. This describes the lemon effect — where, despite most of your drive live for years, some just die after a few months. Between 18 and 36 months, drive deaths are caused by random failures — small, random issues that only occur if you’re unlucky. Then, as the drive moves into its fourth year, failure rates skyrocket as drives start to wear out — the various components can only rotate, gyrate, and actuate so many times before something goes sprronngggg.
It’s worth noting that Backblaze uses normal, consumer-level drives — the kind of drives with 12- or 36-month warranties. Considering around 97.5% of these drives are still alive after one year, and about 90% are alive after three years, these warranties are probably spot-on.