12/28/2023 0 Comments Backblaze hard drive reliability 2020![]() They found that there was a much closer match for the end of Q4 2015. The data comparing HDDs and SSDs for for the last quarter in 2020, suggested that the SSDs where much more reliable than SSDs with an Average Failure Rate for the HHDs of 6.26% compared to 0.79% for SSDs,Īs they say they were concerned this wasn’t a fair comparison, so in this quarter’s report, to create a more accurate comparison, they looked at the HDD boot drives that were in use at the end of Q4 2020 and went back in time to see where their average age and cumulative drive days would be similar for the SDDs at the end of Q4 2020. They do state that the HDD and SSD boot drives perform the same functions, which include booting the storage servers and performing reads, writes, and deletes of daily log files and other temporary files. The average age of the HDD drives was 49.63 months while the SSDs average age was 12.66 months. In that first report of SSDs they stated that a numbers-to-numbers comparison was suspect as each type of drive was at a different point in its life cycle. In their Q1 2021 report, Backblaze took an initial look at comparing their HDD and SSD boot drives, both from the perspective of a single quarter and their lifetime. Hard Disk Drives (HDDs) Versus Solid State Drives (SSDs) This leaves 177,935 hard drives for their Q2 2021 quarterly report, as shown below. In preparing the latest stats they declared that they removed 231 drives from the data because they were used for testing purposes or as drive models for which they did not have at least 60 drives. Most of us are still using ‘spinning rust’ hard drives for archiving and larger storage requirements, although more and more of us are using SSDs for boot drives and media storage, more of which later in this article.Īt the end of June 2021, Backblaze was monitoring 178,166 hard drives used to store data. Q2 2021 Hard Drive Failure Ratesīack to the data from Backblaze. ![]() Either way, there is no way back from this, your data is gone for good. In addition if a drive fails when in use, the chances are that the heads, which normally ‘float ‘ on a cushion of air will come into land unexpectedly onto the disks scratching the magnetic coating that stores the data. The disks inside are made out of glass, which breaks easily, even if you drop them from only a small height. Spinning hard drives are fragile devices. Do not expect data recovery services to be able to recover your data. Drives will fail, and if you do not have the data backed up your data will be lost. The headline here is that no drive is 100% reliable and so not having a back strategy is unwise to say the least. Very helpfully for everyone, they also publish data every 3 months showing how reliable, or not, the hard drives they use are and for the first time this year, their data includes SSDs, which makes for some interesting reading. Header image by Denny Müller on Unsplash.Backblaze offer cloud storage for businesses and consumers alike and have 1,888,910,817,100,587,008 bytes of data storage on 181,464 drives spread across four data centres on two continents. We’ll be watching the Backblaze blog for upcoming stats and observations as the hard drives continue to be tested over the coming months. ![]() This model was also the oldest, in average age, of all the drives listed. Low annualized failure rate for Seagate 6TB drive (more drive days)įor drive models with over 250,000 drive days over the course of 2020, the Seagate 6TB drive (model: ST6000DX000) led the way with a 0.23% annualized failure rate (AFR). Backblaze tested 6,0002 pieces of that WDC model and found that the AFR for this drive model was just 0.16%. Only one Western Digital drive made it onto the report, the 14TB model WUH721414ALE6L4, however it’s important to say that HGST is a Western Digital brand, so they are under the same corporate umbrella – and HGST drives have consistently been outperforming Seagate drives over many years (and this year is no exception). Toshiba’s drives have been impressive, with a 14TB drive (model: MG07ACA14TA) and 16TB drive (model: MG08ACA16TEY) each delivering zeros for annualized failure rates (AFR) – though these drives had only been installed for two months by the time Backblaze’s 2020 stats were published. Most reliable hard drives from Toshiba, HGST, Western Digital The good news is, the annualized failure rate has dropped by 50% since 2019, where it stood at 1.89% compared to 2020’s 0.93%.
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