GamersNexus: "BackBlaze just reported its annual failure rate for 34,881 drives that house 100 petabytes of data (that's 100,000,000 gigabytes). The latest report reinforces earlier data that Seagate has some of the poorest longterm endurance of all tested devices, with 3TB drives climbing to a 15% annual failure rate (from 9% at the time of last reporting). WD 3TB drives aren't immune to worsened lifespan, though, and have also jumped from 4% to 7% in annual failures."