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Am I misreading the data (Cumulative 2013->2017) or something? The Seagate 4TB are horrific, yes, but they look to have completely solved their issues above 4TB

Am I misreading the data (Cumulative 2013->2017) or something? The Seagate 4TB are horrific, yes, but they look to have completely solved their issues above 4TB. e.g. 6TB - BB have 4 times as many Seagate drives (and nearly 4x logged time) as WDC, but more WDC drives have failed. (4.6%WDC versus 1.2%) 8TB - Annualised failure is lower than HGST (1.1% & 1.2% versus 1.7%). Nearly 25,000 Seagate drives and 150 odd failures. 10TB - 0 failures over 13,720 drive days so far 12TB - 0 failures over 500 drive days so far. Maybe I'm misreading something, but it looks from their data that the major Seagate issues have been put behind them now?

paulmd 9y ago
> Am I misreading the data (Cumulative 2013->2017) or something? Yes. Per the description, that table is only drives that remain in service as of 2017. There have been "troublesome" Seagate models that failed at such high rates that Backblaze finally just pre-emptively pulled them, and those drives are not in the "cumulative" table they show in the OP. https://www.backblaze.com/blog/3tb-hard-drive-failure/ https://www.backblaze.com/blog/3tb-hard-drive-failure/ > Maybe I'm misreading something, but it looks from their data that the major Seagate issues have been put behind them now? That's what people said after the 7200.11 series. And after the 1.5 TBs shit the bed. And after the 3 TBs shit the bed. They're good for a while, then Seagate releases yet another model that shits the bed. You can actually see that in the link above. > While this particular 3TB model had a painfully high rate of failure, subsequent Seagate models such as their 4TB drive, model: ST4000DM000, are performing well with an annualized 2014 failure rate of just 2.6% as of December 31, 2014. These drives come with 3-year warranties and show no signs of hitting the wall. 2 years later they've released two new 4 TB models that fail at 50-100x the norm again.
- christoph 9y ago
  OK - thanks for backstory and information :)

paulmd 9y ago

> Am I misreading the data (Cumulative 2013->2017) or something? Yes. Per the description, that table is only drives that remain in service as of 2017. There have been "troublesome" Seagate models that failed at such high rates that Backblaze finally just pre-emptively pulled them, and those drives are not in the "cumulative" table they show in the OP. https://www.backblaze.com/blog/3tb-hard-drive-failure/ https://www.backblaze.com/blog/3tb-hard-drive-failure/ > Maybe I'm misreading something, but it looks from their data that the major Seagate issues have been put behind them now? That's what people said after the 7200.11 series. And after the 1.5 TBs shit the bed. And after the 3 TBs shit the bed. They're good for a while, then Seagate releases yet another model that shits the bed. You can actually see that in the link above. > While this particular 3TB model had a painfully high rate of failure, subsequent Seagate models such as their 4TB drive, model: ST4000DM000, are performing well with an annualized 2014 failure rate of just 2.6% as of December 31, 2014. These drives come with 3-year warranties and show no signs of hitting the wall. 2 years later they've released two new 4 TB models that fail at 50-100x the norm again.

christoph 9y ago
OK - thanks for backstory and information :)