Backblaze has released its mid-year SSD operational reliability report, in which the company discusses SSD failure rates and average service life. Before we dive into the statistics, you might be wondering the reasoning behind each "quarterly number" Backblaze consolidates. The motivation behind this is obvious: storage solutions like SSDs and hard drives last longer than other hardware components.
Backblaze tests a range of storage devices to let consumers know their average uptime and provide failure rate information. This helps in choosing the most suitable provider for both average users and companies that rely on massive data storage.
Looking back now, Backblaze has confirmed the fact that their "evaluation figures" have increased significantly from the previous year, as the company now has 3,144 SSDs in its servers, which is an increase of nearly 20% from 2022. Higher data sets undoubtedly mean that the results obtained will be more reliable, but they will also contain some ambiguities. Backblaze revealed new SSDs from Crucial, WDC and Seagate.
AFR (Annual Failure Rate) refers to whether an SSD stops working during a specific year-over-year time period. Backblaze statistics show that Seagate (model SSDSCKKB240GZR) SSDs have an AFR of 830%, but this data only applies to two drives from the first to second quarters. While the reason behind this has not been disclosed, it may have something to do with SSD production, as Seagate itself is a pretty reliable storage solutions company. Additionally, quarterly AFR growth was minimal at 1.05%.
As for the average failure rate (AFR) of SSDs, Backblaze determines this number by analyzing the "power on time, or POH," of SSDs that failed during the quarter. The company reiterates that the operating time of an SSD is proportional to its average age, which is why their "echelon" of SSDs have an average operating life of 25 months, with that number set to increase over time. Lifetime AFR is also a key factor and is classified as the "real test" of a drive, in which case Backblaze saw a modest quarterly increase of 0.9%.
The data provided by the company is very interesting and we appreciate the efforts they put into compiling actual data, which will definitely help corporate customers choose their respective storage solutions.
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