Backblaze, the data storage service, released the latest mechanical hard drive reliability and failure rate reports on February 2 in three timeframes: Q4 2017, 2015-2017 and 2013-2017.
As of 2017, BB has a total of 93,240 hard disks, of which 1935 are boot disks and 91,305 are data disks.
Looking at Q4 2017, the results show that, The highest annual failure rate (29.08%) is Seagate, the specific model is ST4000DM005, capacity 4TB.
Seagate is the highest number of failures, Model ST4000DM000, actually 3 months, 235 broken Of course, this type of hard disk purchases the largest volume, the longest power, in fact, the failure rate is not yet DM005 high.
To force the HGST and Toshiba, the annual failure rate is 0. Of course, may be shorter service life, the magnitude is also very low.
In general, Western Digital, HGST (in fact, the West's number) and Toshiba rely on the overall more reliable.
Looking at the data for the three years from 2015 to 2017, there is a comparatively high failure rate in three years: the WD WDEFEFX, the Seagate ST4000DM000 and the WD30EFRX.
If the time extended to the last 5 years, 4TB of Seagate really does not make people worry.
