Storage service provider Backblaze released the hard disk service report for the second quarter of 2018. As of June 30, BB has a total of 100,254 hard drives, including 1989 boot disks and 98,265 data disks.
Look at the second quarter alone (4, 5, 6 months)
The number of mechanical hard disks in the statistics is 98,184. The reason why the total number is less than the total number is because the test disks with few power-on time and the models with less than 45 pieces are excluded. The annualized failure rate of all hard disks is 1.08%, which is history. Minimum value.
among them, The highest fault is the Seagate ST4000DM000 with a capacity of 4TB, 134 blocks of 'death' Of course, this model has the longest service time; the second fault is Seagate, model ST12000NM0007, with a capacity of 12TB, which is the second longest service time.
The HDS5C4040ALE630 (4TB) of the HGST (4K) with the highest annual failure rate is 4.68%, only considering that the bad disk has only one block and the inspection time is too short, and the reference is not big.
Strictly speaking, Toshiba and Western Digital's own brands perform relatively well. Of course, this data is unfair to Seagate because its hard drive has the highest level of power and power-on time.
Look at the total data for 5 years.
The highest fault is still the Seagate ST4000DM000 with a capacity of 4TB, and the Western Digital WD30EFRX (3TB) with the highest annual failure rate.
Simultaneously, The lowest annual failure rate is Seagate 10TB, but it was bought last year. The second lowest is the HMS5C4040BLE640 (4TB), only 0.49%Considering that the service time of this model is the second longest, this result is quite exciting.
The final report also compares the difference between Seagate's consumer-grade 8TB hard drive and enterprise-class reliability. Overall, the enterprise level is more reliable than time migration.
