A tome is the same drive model in the same logical position in each of the 20 Storage Pods that make up a Backblaze Vault. Why do we have only 20 drives? When we test out a new drive model we start with the “tome test” and it takes 20 drives to fill one tome. What gives? We only had 20 of the Toshiba 8 TB drives in operation in Q1, so they were excluded from the chart. We mentioned Toshiba 8 TB drives in the first paragraph, but they don’t show up in the Q1 Stats chart. We use 45 drives of the same model as the minimum number when we report quarterly, yearly, and lifetime drive statistics. There were 142 drives (98,188 minus 98,046) that were not included in the list above because we did not have at least 45 of a given drive model. Remember that quarterly failure rates can be volatile, especially for models that have a small number of drives and/or a small number of Drive Days. The overall Annualized Failure Rate (AFR) for Q1 is just 1.2%, well below the Q4 2017 AFR of 1.65%. If a drive model has a failure rate of 0%, it only means there were no drive failures of that model during Q1 2018. For our evaluation below we remove from consideration those drives which were used for testing purposes and those drive models for which we did not have at least 45 drives. Hard Drive Reliability Statistics for Q1 2018Īt the end of Q1 2018 Backblaze was monitoring 98,188 hard drives used to store data. Currently there are about 97 million entries totaling 26 GB of data. Each entry consists of the date, manufacturer, model, serial number, status (operational or failed), and all of the SMART attributes reported by that drive. Since April 2013, Backblaze has recorded and saved daily hard drive statistics from the drives in our data centers. We’ll also take a look at why we are collecting and reporting 10 new SMART attributes and take a sneak peek at some 8 TB Toshiba drives. This review looks at the quarterly and lifetime statistics for the data drive models in operation in their data centers. Of that number, there were 1,922 boot drives and 98,188 data drives. In 2020, the failure rate was 0.93% and in 2021 it was 1.10%.It is always fun to check this list out, as of March 31, 2018 they had 100,110 spinning hard drives. This increase is due to the age of the drives, as all hardware becomes more likely to fail over time. The yearly failure rate for hard drives has risen in the past three years, reaching 1.37% in 2022. Additionally, these drives had only been in use for a little over 22,000 days and were mainly used as backup drives to replace failed drives. It had no failures recorded in 2022, but it's important to note that there were only 79 of these drives in use. Seagate's 8TB hard drive, the Exos ST8000NM000A, was the standout performer in the report. The HGST Ultrastar He8 8TB and Seagate Exos X14 14TB had the highest failure rates at 5.27% and 5.70%, respectively, but it's important to consider the smaller sample size for these models. This is due to the aging of the drives, which become more prone to failure over time. The annualized failure rate for hard drives has increased in recent years, with the rate for 2022 reaching 1.37%. However, it's important to note that Backblaze only had 79 of these drives in use. The company analyzed 230,921 hard drives and found that Seagate's Exos 8TB (ST8000NM000A) had no failures in 2022. The report provides information on the reliability of hard drives, which are still relevant for secondary storage despite the popularity of SSDs. Backblaze, a cloud storage and data backup company, has published its annual report on hard drive failures for 2022.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |