As an example it notes that a single drive might contributed to the pod for 43 days, 186 days, or all 365 days of 2021. Each day, Backblaze takes a snapshot of each operational hard drive that includes basic hard drive information (e.g., capacity, failure) and S.M.A.R.T. For Q3 2017, BackBlaze added 9,599 new drives and decommissioned 6,221 drives, bringing the total to 86,529 hard drives, sourced from 17 different SKUs across all four manufacturers. This is due to the fact that drives come and go from Backblaze’s pods all the time so it has to calculate how long a drive has been in service to come up with a number for that specific drive’s failure rate. company Backblaze produces an annual report into hard drive reliability. Right off the top we should note Backblaze is reporting Annualized Failure Rate, not annual failure rate. A hard disk drive failure occurs when a hard disk drive malfunctions and the stored. The company uses drives of multiple capacities and ages, from brands such as Seagate, Toshiba, HGST, and WDC, while monitoring each model’s annualised failure rate or AFR, calculated using the following formula AFR (drive failures / (drive days / 365. Note that this report does not include information about SSDs, which will be published soon in a separate blog post. Backblaze, the cloud storage provider, recently published its 2021 annual report about the performance of 202,759 operational hard drives. Backblaze further contextualizes its 2020 data with. Backblaze says this reduction was a ‘group effort’ that ultimately saw all drives, new and old, small and large, perform well in 2020. The good news: most of them are pretty dang reliable, regardless of capacity or manufacturer. As a whole, Backblaze’s annualized failure rates for 2020 was 0.93, which is less than half the 1.89 annualized failure rate it incurred in 2019. They have over 86,000 drives installed in their own Storage Pods. Backblaze typically does this in a quarterly fashion, but since the year ended it decided to an annual wrap up of sorts for its hard drive army, and it is even sharing data from past years to see how things have changed over time. Backblaze released their Q3 2017 drive reliability findings this morning, and the news is good. Cloud backup provider Backblaze has collected all the data about which hard drives failed in its pods in 2021, providing a keen insight into what it sees are the most - and least - reliable hard drives.
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