![]() ![]() The larger capacity newer drives are primarily responsible for this figure with them accounting for 69 of total active drives but only 57 of drive failures. 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. The latest report shows that the AFR for all drives in operation rose to 1.01 in 2021 up from 0.93 in 2020 but significantly below the 1.83 reported in 2019. The HDS5C4040ALE630 (4TB) of 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 large. Of course, this model has the longest service time the second fault is Seagate’ model ST12000NM0007, capacity 12TB, which is the service time too long. There are a total of 98,184 mechanical hard disks in the statistics. The reason why it is less than the total number is because the test discs with few power-on time and the models with less than 45 pieces are excluded. The annualized failure rate of all hard drives is 1.08%, which is the historical minimum.Īmong them, the highest fault is the Seagate ST4000DM000 with a capacity of 4TB, and 134 pieces are “dead”. ![]() ![]() ![]() Look at the second quarter –Blackblaze Q2 2018 hard drive failure rates report As of June 30, BB has a total of 100,254 hard drives, including 1989 boot disks and 98,265 data disks. 230,921 DRIVE FAILURES 2,963 DRIVE DAYS 79M ANNUALIZED FAILURE RATE 1. This cuts the number of models down to 13, and the model with the highest failure rate here is a 12TB Seagate model (ST12000NM0007) with an AFR of 2.03 percent.Storage service provider Backblaze released the hard disk service report for the second quarter of 2018. Backblaze, long a champion of home-grown hardware, succumbs to the lure of commodity serversįor this reason, the company has drawn up another table comprising drives which have a minimum drive days value of one million and are larger than 8TB in capacity. Hard Drive Reliability - Annualized Hard Drive Failure Rates.Back up for a minute – Backblaze HD reliability stats show oldies can be goodies.Toshiba reveals 30TB disk drive to arrive by 2024.Backblaze report finds SSDs as reliable as HDDs.However, Backblaze cautions that the number of “drive days” (the number of days all the drives of a specific model were operational during the defined period) for these is on the low side, leading to a wide gap between the low and high confidence interval values and therefore lower confidence in those AFR figures. The latest report shows that the AFR for all drives in operation rose to 1.01 in 2021 up from 0.93 in 2020 but significantly below the 1.83 reported in 2019. Three drives can be picked out from the table with the highest failure rates, and these are an 8TB HGST model (HUH728080ALE604) at 6.26 percent a Seagate 14TB model (ST14000NM0138) at 4.86 percent and Toshiba’s 16TB (MG08ACA16TA) with 3.57 percent. But, as with the 4TB Toshiba model, these drives have very wide confidence interval gaps because of a relatively limited number of data points.īackblaze found that the lifetime AFR across all these drives is 1.39 percent, which is the same as during the previous quarter and down from the 1.45 percent found during the same quarter in 2021. Other drives that Backblaze reveals as having zero failures during Q2 are an 8TB HGST model (HUH728080ALE604), as well as some 14TB and 16TB Toshiba drives (MG07ACA14TEY and MG08ACA16TA respectively). The AFR for these drives is just 0.79 percent, but this comes with the caveat that the lifetime confidence interval gap for them is 1.3 percent, which means Backblaze is lacking enough data to be confident of the true AFR. However, the next to oldest drives in Backblaze’s portfolio are 4TB Toshiba drives (model MD04ABA400V) which have been in service for an average 85.3 months and these recorded zero failures during Q2. Backblaze is back with an update on its hard disk and SSD failure rates for the third quarter of 2021. “At some point in the future we can expect these drives will be cycled out, but with their lifetime AFR at just 0.87 percent, they are not first in line,” said Backblaze’s principal cloud storage evangelist Andy Klein. ![]()
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