![]() ![]() All of them showcased excellent reliability, with an over 99% life expectancy across brands. You can now give more weight to pricing and/or performance.Īs for the 14 TB models, Backblaze managed to compare life expectancy for all three major HDD brands operating today: Toshiba (MG07ACA14TA, enterprise) WDC (WUH721414ALE6L4, marketed as the UltraStar DC HC 530 (opens in new tab)) and Seagate's Exos X16 again (ST14000NM001G) (opens in new tab). With the survival scores being what they are, that's one less factor to consider when choosing the best model for you. All three models showed a 98% life expectancy, and all of them carry the same five-year warranty. With that in mind, evolving technology in the HDD space means that these have much better life expectancy rates than the lower-capacity ones. In this category, Backblaze again compared drives from Seagate - the Exos X14 (ST12000NM0008) (opens in new tab) and the Exos X16 (ST12000NM001G) (opens in new tab) against one HGST drive, the HGST HUH721212ALN604, (which may also be found with a Western Digital sticker, by the way).Īs a rule of thumb, the higher the drive capacity, the more recently it was manufactured. (Image credit: Backblaze)įor the more data-driven users that either take large numbers of photographs (like me), work with content production, or generally just want to have more available space for their media or household backups, 12 TB drives is where the business gets serious. ![]() As technology as matured, failaure rates have decreased dramatically. At an estimated 30-40 minutes per day, that's a lot in technician-hours.įailure rates for 12 TB HDDs. While the average consumer would simply swap the failed drive and be done with it, Backblaze's scale means they replaced around 4,200 more failed Seagate drives than the HGST counterpart - 700 more drives a year, or around two more drives per day. ![]() These elements help explain both the difference in cost and the higher reliability of one drive over the other, and highlight the difficulties in choosing the right piece of hardware for any one of us.īackblaze, of course, has other metrics they have to consider. The same isn't true for the "Desktop HDD" Seagate drives. We also have to take into account product positioning: HGST's drive belongs in the Enterprise segment, where reliability is paramount. ![]() The Seagate drives were also easier for Backblaze to purchase. In this case, the HGST drives cost between 1.2 and 1.5 times more than the equivalent-capacity Seagate. Things like "How does it perform?", "How easy is it to buy" and more importantly, "How much does it cost?" are unavoidable questions for consumers looking for the best bang for their buck. As a note, HGST was absorbed by Western Digital Corporation (WDC) back in 2012, but hard drives with their stickers are still available for purchase. Unsurprisingly, some of them did die before the deadline for the gathered data, March 31st 2022.īackblaze's analysis for 4 TB hard drives focused on two models: The HGST HMS5C4040BLE640 (sold as HGST MegaScale (opens in new tab)) and the Seagate ST4000DM000 ( sold simply as a desktop HDD (opens in new tab), which were operational from 2013 through 2015. In the case of Backblaze's analysis, the "treatment" is the moment these hard drives start running. There's no issue in applying it to other fields - as it often is. This curve, which has its roots in biological science, takes into account the number of subjects that have survived a treatment among all those that received it. Backblaze took its analysis as far back as April 2013, and analyzed all hard drives they've commissioned into work in a high enough number that allowed them to apply the Kaplan-Meier life expectancy curve. ![]()
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