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Update to Q1 2017: Seagate redeemed?

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Update June 8 2017



After some delay, I finally got around to downloading another 9 months of data and rerunning the KM plots. Methods are documented in the first post http://bioinformare.blogspot.com/2016/02/survival-analysis-of-hard-disk-drive.html and won't be repeated here. Note that drive models with fewer than 500 units, and manufacturers with fewer than 200 units are ignored to simplify the plots - you can fix this in the code if you need. 

Images below are available for the closer inspection they deserve at https://github.com/fubar2/backblazeKM - they really are too detailed to appear here - sorry for the ugly layout here but you can download them or clone the repository if you want a closer look.

Straight to the chase. Here's the drive model survival curve to date:



The newer Seagate ST8000NM0055 is promising excellent longevity although there's only a tiny duration of observation so the initial curves may change with time. 

Also, we haven't tested if this is related…