![]() For their part, the Seagate 6 TB and 10 TB drive continue to be solid performers with annualized failure rates of 0.96% and 1.00% respectively. ![]() The Toshiba 14 TB drive, model MG07ACA14TA, also seems to perform very well at a 0.65% AFR, similar to the rates put up by the HGST drives. For example, if there had been just 1 (one) drive failure during the year, the Annualized Failure Rate (AFR) for that Toshiba model would be 0.92%-still excellent, not 0%. Although that sounds impressive, the data sample is still somewhat small. The report also showed that the only drive model that did not to have a failure during 2019 was the 4 TB Toshiba, model: MD04ABA400V. In the near term, we expect to see moderately increased failure rates for this specific subset of 12TB drives, but as we complete the drive migration, we project our fleet’s failure rates will restore to historical norms." In the short term, failure rates for a subset of our drives may increase, but we have processes in place to adjust for that fluctuation. This analysis usually includes things like testing new drive platforms in real workload environments, providing telemetry tools to predict failures, performing ongoing custom adjustments, and employing firmware development and replacement units (RMAs).Ĭustomer data durability is paramount for both Backblaze and Seagate, so as we analyze root causes and implications we’re also working together on a migration effort to replace these particular drives in our data centers. "It’s customary for HDD manufacturers like Seagate, when working with data centers and cloud service providers, to ensure successful deployment of large-scale drive fleets, and as such we’re working closely with them to analyze the drives and their performance. Yev Pusin, director of marketing, cloud storage and backup at Backblaze, Inc. Those HDD had logged 12.721.076 drive days. Backblaze had 37,004 Seagate Exos ST12000NM0007 HDDs installed, andġ,156 of those drives failed. In their report for 2019, the company says that the 12TB Seagate drives showed a failure rate of 3,32%, which is among the higher in the company's total HDD fleet from various brands. ![]() The company typically releases reports that includes the hard drive failure rates for the data drive models in operation in its data centers.įor their evaluation, Backblaze remove from consideration those drives that were used for testing purposes and those drive models for which theh company did not have at least 5,000 drive days during Q4. Backblaze, a company that operates about 123,000 hard disk drives in its datacenters, has identified a higher-than-typical failure rate among some of its 12TB Seagate drives. ![]()
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