Backblaze is new Q2 2022 SSD Report (opens in new tab)indicating the lifespan of the SSD boot drives powering the backup servers since 2018.
Backblaze started recording SSD lifespans when it started switching from HDD boot drives to SSD boot drives on the backup server. However, since the drive is new, it took the company five years to really see a noticeable difference in overall SSD life expectancy behavior compared to his HDD boot drive life of the same age. I was.
From 2018 to 2021, we are seeing a record life expectancy for SSDs that is roughly the same as hard drive failure rates. Year 1 has a HDD failure rate below his 0.66% and no SSD failure rate at all, by far the lowest failure rate of all. The second year is almost perfectly linear, with HDD and SSD failure rates increasing by about 0.85%.
This linear increase in failures is similar for years 3 and 4, with both SSDs and HDDs exhibiting similar failure rate curves, although SSDs are generally lower. increase. In year 4, SSDs are barely above his 1% mark while HDDs hover around the 1.8% mark. And things seem to diverge.
The graph starts to change dramatically in favor of SSDs in year 5. HDD boot drive life results show a significant increase in the failure rate, jumping from just under 2% he to 3.6% within a year. Backblaze’s SSD, on the other hand, heads in the opposite direction from its competitors, dropping from 1.05% to a staggering average of 0.92%. This means that the reliability of SSDs compared to hard drives is 3 times better than him.
This isn’t all that surprising, but given that SSDs have no moving parts, thousands of drives indicate that the life expectancy of SSDs far exceeds that of hard drives, especially as the storage starts to age. Based on that, it’s good to finally have some hard details. It’s still possible for SSDs to die prematurely due to overwrites or other factors like poorly designed firmware and controllers. I have. However, such exceptions only affect a minority of people.
Backblaze concludes the report by stating: well done. ” With 5 years of data, the SSD is performing very well overall. It will be interesting to see what happens when the drive shifts him into the 6-, 7-, and 8-year range.
