{"id":112774,"date":"2026-02-12T06:00:00","date_gmt":"2026-02-12T14:00:00","guid":{"rendered":"https:\/\/www.backblaze.com\/blog\/?p=112774"},"modified":"2026-02-11T18:53:06","modified_gmt":"2026-02-12T02:53:06","slug":"backblaze-drive-stats-for-2025","status":"publish","type":"post","link":"https:\/\/www.backblaze.com\/blog\/backblaze-drive-stats-for-2025\/","title":{"rendered":"Backblaze Drive Stats for 2025"},"content":{"rendered":"\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"1440\" height=\"820\" src=\"https:\/\/backblazeprod.wpenginepowered.com\/wp-content\/uploads\/2026\/02\/Q4-2025-Drive-Stats-Blog-Header-1440x820-1.png\" alt=\"A decorative header showing hard drives with the title 2025 Year-End Report Drive Stats. \" class=\"wp-image-112776\" srcset=\"https:\/\/backblazeprod.wpenginepowered.com\/wp-content\/uploads\/2026\/02\/Q4-2025-Drive-Stats-Blog-Header-1440x820-1.png 1440w, https:\/\/backblazeprod.wpenginepowered.com\/wp-content\/uploads\/2026\/02\/Q4-2025-Drive-Stats-Blog-Header-1440x820-1-300x171.png 300w, https:\/\/backblazeprod.wpenginepowered.com\/wp-content\/uploads\/2026\/02\/Q4-2025-Drive-Stats-Blog-Header-1440x820-1-1024x583.png 1024w, https:\/\/backblazeprod.wpenginepowered.com\/wp-content\/uploads\/2026\/02\/Q4-2025-Drive-Stats-Blog-Header-1440x820-1-768x437.png 768w\" sizes=\"auto, (max-width: 1440px) 100vw, 1440px\" \/><\/figure>\n\n\n\n<div style=\"height:15px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p>This year marks 13 years of collecting Drive Stats data. Thirteen is an unlucky number (to some), but we count our lucky stars (or perhaps our lucky stats?) that we\u2019ve had 13 years of <a href=\"https:\/\/www.backblaze.com\/blog\/category\/cloud-storage\/hard-drive-stats\/\" target=\"_blank\" rel=\"noreferrer noopener\">this experiment<\/a>.&nbsp;<\/p>\n\n\n\n<p>The traditional 13-year anniversary gift is lace\u2014intricate, impressive, and vulnerable to a snag if you don\u2019t plan ahead to protect the pattern. Systems, like lace, don\u2019t survive by pretending there are no points of vulnerability. When it comes to our infrastructure, we want to build with the snags in mind to create something durable, and the Drive Stats series is always seeking to publish and provide data so that you, too, can go the distance with your drives.&nbsp;<\/p>\n\n\n\n<p>This year-end Drive Stats report looks at Q4 2025, the full year, and the lifetime view with that in mind. I think you\u2019ll find the same things we do: over time, the patterns matter more than any single strand (or drive, to run this lace metaphor into the ground once and for all). Let\u2019s look at the stats.&nbsp;<\/p>\n\n\n\n<div class=\"abstract\" style=\"line-height: 1.8; margin: 24px 12px; padding: 24px 12px 10px 12px;\">\n<h4>Drive Stats is here for you<\/h4>\nDrive Stats is not a situationship. We\u2019re a conversation and a relationship\u2014to the data. Join the Drive Stats team for our regularly scheduled webinar to walk through the 2025 annualized failure rates, break down the data for interesting trends, and get the latest from the Backblaze drive fleet happenings. \n<br \/>\n<br \/>\n<!--HubSpot Call-to-Action Code --><span class=\"hs-cta-wrapper\" id=\"hs-cta-wrapper-698736ef-b814-4bce-bab6-8b1a6de52f39\"><span class=\"hs-cta-node hs-cta-698736ef-b814-4bce-bab6-8b1a6de52f39\" id=\"hs-cta-698736ef-b814-4bce-bab6-8b1a6de52f39\"><!--[if lte IE 8]><div id=\"hs-cta-ie-element\"><\/div><![endif]--><a href=\"https:\/\/cta-redirect.hubspot.com\/cta\/redirect\/2832298\/698736ef-b814-4bce-bab6-8b1a6de52f39\" target=\"_blank\" rel=\"noopener\"><img decoding=\"async\" class=\"hs-cta-img\" id=\"hs-cta-img-698736ef-b814-4bce-bab6-8b1a6de52f39\" style=\"border-width:0px;\" src=\"https:\/\/no-cache.hubspot.com\/cta\/default\/2832298\/698736ef-b814-4bce-bab6-8b1a6de52f39.png\"  alt=\"Once More With Feeling\"\/><\/a><\/span><script charset=\"utf-8\" src=\"https:\/\/js.hscta.net\/cta\/current.js\"><\/script><script type=\"text\/javascript\"> hbspt.cta.load(2832298, '698736ef-b814-4bce-bab6-8b1a6de52f39', {\"useNewLoader\":\"true\",\"region\":\"na1\"}); <\/script><\/span><!-- end HubSpot Call-to-Action Code -->\n<\/div>\n\n\n\n<h2 class=\"wp-block-heading\">Drive Stats: The digest version<\/h2>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"1920\" height=\"1620\" src=\"https:\/\/backblazeprod.wpenginepowered.com\/wp-content\/uploads\/2026\/02\/Q4-2025-Drive-Stats-_-Infographic.png\" alt=\"A summary infographic showing the Q4 2025, annual, and lifetime hard drive failure rates. \" class=\"wp-image-112792\" srcset=\"https:\/\/backblazeprod.wpenginepowered.com\/wp-content\/uploads\/2026\/02\/Q4-2025-Drive-Stats-_-Infographic.png 1920w, https:\/\/backblazeprod.wpenginepowered.com\/wp-content\/uploads\/2026\/02\/Q4-2025-Drive-Stats-_-Infographic-300x253.png 300w, https:\/\/backblazeprod.wpenginepowered.com\/wp-content\/uploads\/2026\/02\/Q4-2025-Drive-Stats-_-Infographic-1024x864.png 1024w, https:\/\/backblazeprod.wpenginepowered.com\/wp-content\/uploads\/2026\/02\/Q4-2025-Drive-Stats-_-Infographic-768x648.png 768w, https:\/\/backblazeprod.wpenginepowered.com\/wp-content\/uploads\/2026\/02\/Q4-2025-Drive-Stats-_-Infographic-1536x1296.png 1536w, https:\/\/backblazeprod.wpenginepowered.com\/wp-content\/uploads\/2026\/02\/Q4-2025-Drive-Stats-_-Infographic-1568x1323.png 1568w\" sizes=\"auto, (max-width: 1920px) 100vw, 1920px\" \/><\/figure>\n<\/div>\n\n\n<h2 class=\"wp-block-heading\">Q4 2025 hard drive failure rates<\/h2>\n\n\n\n<p>As of the end of 2025, Backblaze was monitoring 341,664 drives used to store data. For our evaluation, we removed from consideration 4,013 boot drives and 459 hard drives, as they did not meet the criteria to be included. We\u2019ll discuss the criteria we used in the next section of this report. Removing these drives leaves us with 337,192 hard drives to analyze. The table below shows the annualized failure rates for Q4 2025 for this collection of drives.<\/p>\n\n\n\n<div class=\"wp-block-group\"><div class=\"wp-block-group__inner-container is-layout-constrained wp-block-group-is-layout-constrained\">\n<p class=\"has-text-align-center has-large-font-size\"><strong>Backblaze Hard Drive Failure Rates for Q4 2025<\/strong><\/p>\n\n\n\n<div class=\"wp-block-group\"><div class=\"wp-block-group__inner-container is-layout-constrained wp-block-group-is-layout-constrained\">\n<p class=\"has-text-align-center has-extra-small-font-size\">Reporting period October 1, 2025\u2013December 31, 2025 inclusive<br \/>Drive models with drive count &gt; 100 as of December 31, 2025 and drive days &gt; 10,000 in Q4 2025.<\/p>\n<\/div><\/div>\n<\/div><\/div>\n\n\n<div class=\"wp-block-image\">\n<figure data-wp-context=\"{&quot;imageId&quot;:&quot;69d0739382083&quot;}\" data-wp-interactive=\"core\/image\" data-wp-key=\"69d0739382083\" class=\"aligncenter size-large wp-lightbox-container\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"932\" data-wp-class--hide=\"state.isContentHidden\" data-wp-class--show=\"state.isContentVisible\" data-wp-init=\"callbacks.setButtonStyles\" data-wp-on--click=\"actions.showLightbox\" data-wp-on--load=\"callbacks.setButtonStyles\" data-wp-on-window--resize=\"callbacks.setButtonStyles\" src=\"https:\/\/backblazeprod.wpenginepowered.com\/wp-content\/uploads\/2026\/02\/Q4-2025-Drive-Stats-Quarterly-1024x932.png\" alt=\"A chart showing the quarterly hard drive failure rates for Q4 2025. \" class=\"wp-image-112783\" srcset=\"https:\/\/backblazeprod.wpenginepowered.com\/wp-content\/uploads\/2026\/02\/Q4-2025-Drive-Stats-Quarterly-1024x932.png 1024w, https:\/\/backblazeprod.wpenginepowered.com\/wp-content\/uploads\/2026\/02\/Q4-2025-Drive-Stats-Quarterly-300x273.png 300w, https:\/\/backblazeprod.wpenginepowered.com\/wp-content\/uploads\/2026\/02\/Q4-2025-Drive-Stats-Quarterly-768x699.png 768w, https:\/\/backblazeprod.wpenginepowered.com\/wp-content\/uploads\/2026\/02\/Q4-2025-Drive-Stats-Quarterly-1536x1397.png 1536w, https:\/\/backblazeprod.wpenginepowered.com\/wp-content\/uploads\/2026\/02\/Q4-2025-Drive-Stats-Quarterly-1568x1427.png 1568w, https:\/\/backblazeprod.wpenginepowered.com\/wp-content\/uploads\/2026\/02\/Q4-2025-Drive-Stats-Quarterly.png 1862w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><button\n\t\t\tclass=\"lightbox-trigger\"\n\t\t\ttype=\"button\"\n\t\t\taria-haspopup=\"dialog\"\n\t\t\taria-label=\"Enlarge\"\n\t\t\tdata-wp-init=\"callbacks.initTriggerButton\"\n\t\t\tdata-wp-on--click=\"actions.showLightbox\"\n\t\t\tdata-wp-style--right=\"state.imageButtonRight\"\n\t\t\tdata-wp-style--top=\"state.imageButtonTop\"\n\t\t>\n\t\t\t<svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"12\" height=\"12\" fill=\"none\" viewBox=\"0 0 12 12\">\n\t\t\t\t<path fill=\"#fff\" d=\"M2 0a2 2 0 0 0-2 2v2h1.5V2a.5.5 0 0 1 .5-.5h2V0H2Zm2 10.5H2a.5.5 0 0 1-.5-.5V8H0v2a2 2 0 0 0 2 2h2v-1.5ZM8 12v-1.5h2a.5.5 0 0 0 .5-.5V8H12v2a2 2 0 0 1-2 2H8Zm2-12a2 2 0 0 1 2 2v2h-1.5V2a.5.5 0 0 0-.5-.5H8V0h2Z\" \/>\n\t\t\t<\/svg>\n\t\t<\/button><\/figure>\n<\/div>\n\n\n<div style=\"height:15px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h3 class=\"wp-block-heading\">Note and observations<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>New drives!\n<ul class=\"wp-block-list\">\n<li>Seagate ST16000NM000J 16TB, with 112 drives<\/li>\n\n\n\n<li>WDC WUH722626ALE6L4 26TB with 1,201 drives. Our first 26TB drive!&nbsp;<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li>The honor roll:\n<ul class=\"wp-block-list\">\n<li>HGST HMS5C4040BLE640 4TB: 1 failure&nbsp;<\/li>\n\n\n\n<li>Seagate ST8000NM000A 8TB: 0 failure&nbsp;<\/li>\n\n\n\n<li>Seagate ST12000NM000J 12TB: 1 failure&nbsp;<\/li>\n\n\n\n<li>Seagate ST16000NM000J 16TB: 1 failure<\/li>\n\n\n\n<li>Seagate ST16000NM002J 16TB: 0 failure&nbsp;<\/li>\n\n\n\n<li>WDC WUH722626ALE6L4 26TB: 1 failure. Shoutout to the new kid\u2014starting off strong!<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li>Red flags:\n<ul class=\"wp-block-list\">\n<li>HGST HUH728080ALE600 8TB: 10.29%<\/li>\n\n\n\n<li>Seagate ST10000NM0086 10TB: 5.23%<\/li>\n\n\n\n<li>Toshiba MG08ACA16TEY 16TB: 4.14%<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n\n\n\n<p>We talked about two of these drives <a href=\"https:\/\/www.backblaze.com\/blog\/backblaze-drive-stats-for-q3-2025\/\" target=\"_blank\" rel=\"noreferrer noopener\">last quarter<\/a>, and what we said about the Seagate still holds true\u2014we\u2019re seeing end of life activity with this drive. But, let\u2019s dig in on the 8TB HGST and 16TB Toshiba and see what\u2019s going on.&nbsp;<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">HGST HUH728080ALE600 8TB<\/h3>\n\n\n\n<p>There\u2019s always some digging to be done when we see a double digit failure rate, especially on a drive that, in the past year, hasn\u2019t had terrible failure rates (despite the fact that it\u2019s about 7.5 years old).<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure data-wp-context=\"{&quot;imageId&quot;:&quot;69d0739382788&quot;}\" data-wp-interactive=\"core\/image\" data-wp-key=\"69d0739382788\" class=\"aligncenter size-large wp-lightbox-container\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"633\" data-wp-class--hide=\"state.isContentHidden\" data-wp-class--show=\"state.isContentVisible\" data-wp-init=\"callbacks.setButtonStyles\" data-wp-on--click=\"actions.showLightbox\" data-wp-on--load=\"callbacks.setButtonStyles\" data-wp-on-window--resize=\"callbacks.setButtonStyles\" src=\"https:\/\/backblazeprod.wpenginepowered.com\/wp-content\/uploads\/2026\/02\/Q4-2025-Drive-Stats-HGST-HUH728080ALE600-8TB-1-1024x633.png\" alt=\"A quarter-over-quarter analysis of the failure rates of an 8TB HGST drive, model number HUH728080ALE600.  \" class=\"wp-image-112781\" srcset=\"https:\/\/backblazeprod.wpenginepowered.com\/wp-content\/uploads\/2026\/02\/Q4-2025-Drive-Stats-HGST-HUH728080ALE600-8TB-1-1024x633.png 1024w, https:\/\/backblazeprod.wpenginepowered.com\/wp-content\/uploads\/2026\/02\/Q4-2025-Drive-Stats-HGST-HUH728080ALE600-8TB-1-300x185.png 300w, https:\/\/backblazeprod.wpenginepowered.com\/wp-content\/uploads\/2026\/02\/Q4-2025-Drive-Stats-HGST-HUH728080ALE600-8TB-1-768x475.png 768w, https:\/\/backblazeprod.wpenginepowered.com\/wp-content\/uploads\/2026\/02\/Q4-2025-Drive-Stats-HGST-HUH728080ALE600-8TB-1.png 1446w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><button\n\t\t\tclass=\"lightbox-trigger\"\n\t\t\ttype=\"button\"\n\t\t\taria-haspopup=\"dialog\"\n\t\t\taria-label=\"Enlarge\"\n\t\t\tdata-wp-init=\"callbacks.initTriggerButton\"\n\t\t\tdata-wp-on--click=\"actions.showLightbox\"\n\t\t\tdata-wp-style--right=\"state.imageButtonRight\"\n\t\t\tdata-wp-style--top=\"state.imageButtonTop\"\n\t\t>\n\t\t\t<svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"12\" height=\"12\" fill=\"none\" viewBox=\"0 0 12 12\">\n\t\t\t\t<path fill=\"#fff\" d=\"M2 0a2 2 0 0 0-2 2v2h1.5V2a.5.5 0 0 1 .5-.5h2V0H2Zm2 10.5H2a.5.5 0 0 1-.5-.5V8H0v2a2 2 0 0 0 2 2h2v-1.5ZM8 12v-1.5h2a.5.5 0 0 0 .5-.5V8H12v2a2 2 0 0 1-2 2H8Zm2-12a2 2 0 0 1 2 2v2h-1.5V2a.5.5 0 0 0-.5-.5H8V0h2Z\" \/>\n\t\t\t<\/svg>\n\t\t<\/button><\/figure>\n<\/div>\n\n\n<div style=\"height:10px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p>It\u2019s worth contextualizing, first, that the total drive count of this model is 1,073, which equates to less than one Vault. (A standard Vault has 1,200 drives.) While Vaults aren\u2019t <em>always<\/em> the same drive model, especially with older drives, in an ideal world, those Vaults would be uniform. So, in this case, we\u2019re dealing with drives that are all hanging out in the same location in a data center, which means we could be working with environmental factors like a change in temperature or airflow.&nbsp;<\/p>\n\n\n\n<p>By the time Drive Stats data gets to me, of course, lots of smart people have already seen the disturbances in the force, so to speak. When I dug into the data center work tickets, it turned turned out that folks had already ruled out temperature as a factor\u2014the working theory at the moment is that the drive could be sensitive to vibration, but given the age of these drives, we decided to just flag them for our <a href=\"https:\/\/www.backblaze.com\/blog\/how-backblaze-scales-our-storage-cloud\/\" target=\"_blank\" rel=\"noreferrer noopener\">normal CVT migration process<\/a>.&nbsp;<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Toshiba MG08ACA16TEY 16TB<\/h3>\n\n\n\n<p>We talked about this model last quarter because it clocked in at a 16.95% AFR (!!). Our investigation turned up some collaborative (and routine) firmware work with Toshiba, and at that time, we predicted that these failure rates would normalize once again. We\u2019re still a little high, but that\u2019s likely a function of rolling out the work. As predicted, this is a healthy normalization.<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure data-wp-context=\"{&quot;imageId&quot;:&quot;69d0739382b89&quot;}\" data-wp-interactive=\"core\/image\" data-wp-key=\"69d0739382b89\" class=\"aligncenter size-large wp-lightbox-container\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"633\" data-wp-class--hide=\"state.isContentHidden\" data-wp-class--show=\"state.isContentVisible\" data-wp-init=\"callbacks.setButtonStyles\" data-wp-on--click=\"actions.showLightbox\" data-wp-on--load=\"callbacks.setButtonStyles\" data-wp-on-window--resize=\"callbacks.setButtonStyles\" src=\"https:\/\/backblazeprod.wpenginepowered.com\/wp-content\/uploads\/2026\/02\/Q4-2025-Drive-Stats-Toshiba-MG08ACA16TEY-1-1024x633.png\" alt=\"A quarter-over-quarter analysis of a 16TB Toshiba drive, model number MG08ACA16TEY. \" class=\"wp-image-112784\" srcset=\"https:\/\/backblazeprod.wpenginepowered.com\/wp-content\/uploads\/2026\/02\/Q4-2025-Drive-Stats-Toshiba-MG08ACA16TEY-1-1024x633.png 1024w, https:\/\/backblazeprod.wpenginepowered.com\/wp-content\/uploads\/2026\/02\/Q4-2025-Drive-Stats-Toshiba-MG08ACA16TEY-1-300x185.png 300w, https:\/\/backblazeprod.wpenginepowered.com\/wp-content\/uploads\/2026\/02\/Q4-2025-Drive-Stats-Toshiba-MG08ACA16TEY-1-768x475.png 768w, https:\/\/backblazeprod.wpenginepowered.com\/wp-content\/uploads\/2026\/02\/Q4-2025-Drive-Stats-Toshiba-MG08ACA16TEY-1.png 1446w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><button\n\t\t\tclass=\"lightbox-trigger\"\n\t\t\ttype=\"button\"\n\t\t\taria-haspopup=\"dialog\"\n\t\t\taria-label=\"Enlarge\"\n\t\t\tdata-wp-init=\"callbacks.initTriggerButton\"\n\t\t\tdata-wp-on--click=\"actions.showLightbox\"\n\t\t\tdata-wp-style--right=\"state.imageButtonRight\"\n\t\t\tdata-wp-style--top=\"state.imageButtonTop\"\n\t\t>\n\t\t\t<svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"12\" height=\"12\" fill=\"none\" viewBox=\"0 0 12 12\">\n\t\t\t\t<path fill=\"#fff\" d=\"M2 0a2 2 0 0 0-2 2v2h1.5V2a.5.5 0 0 1 .5-.5h2V0H2Zm2 10.5H2a.5.5 0 0 1-.5-.5V8H0v2a2 2 0 0 0 2 2h2v-1.5ZM8 12v-1.5h2a.5.5 0 0 0 .5-.5V8H12v2a2 2 0 0 1-2 2H8Zm2-12a2 2 0 0 1 2 2v2h-1.5V2a.5.5 0 0 0-.5-.5H8V0h2Z\" \/>\n\t\t\t<\/svg>\n\t\t<\/button><\/figure>\n<\/div>\n\n\n<div style=\"height:15px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h2 class=\"wp-block-heading\">Defining the relationship, aka setting some boundaries<\/h2>\n\n\n\n<p>We\u2019ve covered the reasons that we\u2019ve designed these exclusions in <a href=\"https:\/\/www.backblaze.com\/blog\/category\/cloud-storage\/hard-drive-stats\/\">past reports<\/a>, but here\u2019s the quick and dirty:<\/p>\n\n\n\n<table id=\"tablepress-78\" class=\"tablepress tablepress-id-78\">\n<thead>\n<tr class=\"row-1\">\n\t<th class=\"column-1\">Period<\/th><th class=\"column-2\">Drive Count<\/th><th class=\"column-3\">Drive Days<\/th>\n<\/tr>\n<\/thead>\n<tbody class=\"row-striping row-hover\">\n<tr class=\"row-2\">\n\t<td class=\"column-1\"><strong>Quarterly<\/strong><\/td><td class=\"column-2\">> 100<\/td><td class=\"column-3\">> 10,000<\/td>\n<\/tr>\n<tr class=\"row-3\">\n\t<td class=\"column-1\"><strong>Annual<\/strong><\/td><td class=\"column-2\">> 250<\/td><td class=\"column-3\">> 50,000<\/td>\n<\/tr>\n<tr class=\"row-4\">\n\t<td class=\"column-1\"><strong>Lifetime<\/strong><\/td><td class=\"column-2\">> 500<\/td><td class=\"column-3\">>100,000<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<!-- #tablepress-78 from cache -->\n\n\n\n<p>Regardless of whether or not a given drive model is included in this article\u2019s charts and tables, all of the line item data is included in our Drive Stats dataset which you can download by visiting our Drive Stats page.<\/p>\n\n\n\n<!--HubSpot Call-to-Action Code --><span class=\"hs-cta-wrapper\" id=\"hs-cta-wrapper-048458a8-612e-40fd-84e4-839fcd09f168\"><span class=\"hs-cta-node hs-cta-048458a8-612e-40fd-84e4-839fcd09f168\" id=\"hs-cta-048458a8-612e-40fd-84e4-839fcd09f168\"><!--[if lte IE 8]><div id=\"hs-cta-ie-element\"><\/div><![endif]--><a href=\"https:\/\/cta-redirect.hubspot.com\/cta\/redirect\/2832298\/048458a8-612e-40fd-84e4-839fcd09f168\" target=\"_blank\" rel=\"noopener\"><img decoding=\"async\" class=\"hs-cta-img\" id=\"hs-cta-img-048458a8-612e-40fd-84e4-839fcd09f168\" style=\"border-width:0px;\" src=\"https:\/\/no-cache.hubspot.com\/cta\/default\/2832298\/048458a8-612e-40fd-84e4-839fcd09f168.png\"  alt=\"Sharing Is Caring\"\/><\/a><\/span><script charset=\"utf-8\" src=\"https:\/\/js.hscta.net\/cta\/current.js\"><\/script><script type=\"text\/javascript\"> hbspt.cta.load(2832298, '048458a8-612e-40fd-84e4-839fcd09f168', {\"useNewLoader\":\"true\",\"region\":\"na1\"}); <\/script><\/span><!-- end HubSpot Call-to-Action Code -->\n\n\n\n<div style=\"height:30px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h2 class=\"wp-block-heading\">2025 Annual hard drive failure rates<\/h2>\n\n\n\n<p>As of the end of 2025, Backblaze was monitoring 349,462 hard drives used to store data. We removed 4,176 boot drives and 1,090 hard drives from consideration as they did not meet the annual criteria we have defined. This leaves us with 344,196 drives divided across 30 different drive models. The table below shows the AFRs for 2025 for this collection of drives.<\/p>\n\n\n\n<div class=\"wp-block-group\"><div class=\"wp-block-group__inner-container is-layout-constrained wp-block-group-is-layout-constrained\">\n<p class=\"has-text-align-center has-large-font-size\"><strong>Backblaze Hard Drive Failure Rates for 2025<\/strong><\/p>\n\n\n\n<p class=\"has-text-align-center has-extra-small-font-size\" style=\"line-height:1.2\">Reporting period January 1, 2025\u2013December 31, 2025 inclusive<br \/>Drive models with drive count &gt; 250 and drive days &gt; 50,000 in 2025<\/p>\n<\/div><\/div>\n\n\n<div class=\"wp-block-image\">\n<figure data-wp-context=\"{&quot;imageId&quot;:&quot;69d0739383137&quot;}\" data-wp-interactive=\"core\/image\" data-wp-key=\"69d0739383137\" class=\"aligncenter size-large wp-lightbox-container\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"952\" data-wp-class--hide=\"state.isContentHidden\" data-wp-class--show=\"state.isContentVisible\" data-wp-init=\"callbacks.setButtonStyles\" data-wp-on--click=\"actions.showLightbox\" data-wp-on--load=\"callbacks.setButtonStyles\" data-wp-on-window--resize=\"callbacks.setButtonStyles\" src=\"https:\/\/backblazeprod.wpenginepowered.com\/wp-content\/uploads\/2026\/02\/Q4-2025-Drive-Stats-Annual-1024x952.png\" alt=\"A table that shows the annual hard drive failure rates as of Q4 2025.\" class=\"wp-image-112780\" srcset=\"https:\/\/backblazeprod.wpenginepowered.com\/wp-content\/uploads\/2026\/02\/Q4-2025-Drive-Stats-Annual-1024x952.png 1024w, https:\/\/backblazeprod.wpenginepowered.com\/wp-content\/uploads\/2026\/02\/Q4-2025-Drive-Stats-Annual-300x279.png 300w, https:\/\/backblazeprod.wpenginepowered.com\/wp-content\/uploads\/2026\/02\/Q4-2025-Drive-Stats-Annual-768x714.png 768w, https:\/\/backblazeprod.wpenginepowered.com\/wp-content\/uploads\/2026\/02\/Q4-2025-Drive-Stats-Annual-1536x1427.png 1536w, https:\/\/backblazeprod.wpenginepowered.com\/wp-content\/uploads\/2026\/02\/Q4-2025-Drive-Stats-Annual-1568x1457.png 1568w, https:\/\/backblazeprod.wpenginepowered.com\/wp-content\/uploads\/2026\/02\/Q4-2025-Drive-Stats-Annual.png 1868w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><button\n\t\t\tclass=\"lightbox-trigger\"\n\t\t\ttype=\"button\"\n\t\t\taria-haspopup=\"dialog\"\n\t\t\taria-label=\"Enlarge\"\n\t\t\tdata-wp-init=\"callbacks.initTriggerButton\"\n\t\t\tdata-wp-on--click=\"actions.showLightbox\"\n\t\t\tdata-wp-style--right=\"state.imageButtonRight\"\n\t\t\tdata-wp-style--top=\"state.imageButtonTop\"\n\t\t>\n\t\t\t<svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"12\" height=\"12\" fill=\"none\" viewBox=\"0 0 12 12\">\n\t\t\t\t<path fill=\"#fff\" d=\"M2 0a2 2 0 0 0-2 2v2h1.5V2a.5.5 0 0 1 .5-.5h2V0H2Zm2 10.5H2a.5.5 0 0 1-.5-.5V8H0v2a2 2 0 0 0 2 2h2v-1.5ZM8 12v-1.5h2a.5.5 0 0 0 .5-.5V8H12v2a2 2 0 0 1-2 2H8Zm2-12a2 2 0 0 1 2 2v2h-1.5V2a.5.5 0 0 0-.5-.5H8V0h2Z\" \/>\n\t\t\t<\/svg>\n\t\t<\/button><\/figure>\n<\/div>\n\n\n<div style=\"height:15px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h3 class=\"wp-block-heading\">Notes and observations<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>The annual AFR is down:<\/strong> This year finishes strong at 1.36%, down from 1.55% in 2024. Still those paying attention to the quarterly AFR have seen some volatility in that number.<\/li>\n<\/ul>\n\n\n<div class=\"wp-block-image\">\n<figure data-wp-context=\"{&quot;imageId&quot;:&quot;69d07393834bf&quot;}\" data-wp-interactive=\"core\/image\" data-wp-key=\"69d07393834bf\" class=\"aligncenter size-large wp-lightbox-container\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"633\" data-wp-class--hide=\"state.isContentHidden\" data-wp-class--show=\"state.isContentVisible\" data-wp-init=\"callbacks.setButtonStyles\" data-wp-on--click=\"actions.showLightbox\" data-wp-on--load=\"callbacks.setButtonStyles\" data-wp-on-window--resize=\"callbacks.setButtonStyles\" src=\"https:\/\/backblazeprod.wpenginepowered.com\/wp-content\/uploads\/2026\/02\/Q4-2025-Drive-Stats-2025-Quarterly-AFRs-1-1024x633.png\" alt=\"A graph showing the 2025 quarterly hard drive failure rates. \" class=\"wp-image-112778\" srcset=\"https:\/\/backblazeprod.wpenginepowered.com\/wp-content\/uploads\/2026\/02\/Q4-2025-Drive-Stats-2025-Quarterly-AFRs-1-1024x633.png 1024w, https:\/\/backblazeprod.wpenginepowered.com\/wp-content\/uploads\/2026\/02\/Q4-2025-Drive-Stats-2025-Quarterly-AFRs-1-300x185.png 300w, https:\/\/backblazeprod.wpenginepowered.com\/wp-content\/uploads\/2026\/02\/Q4-2025-Drive-Stats-2025-Quarterly-AFRs-1-768x475.png 768w, https:\/\/backblazeprod.wpenginepowered.com\/wp-content\/uploads\/2026\/02\/Q4-2025-Drive-Stats-2025-Quarterly-AFRs-1.png 1446w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><button\n\t\t\tclass=\"lightbox-trigger\"\n\t\t\ttype=\"button\"\n\t\t\taria-haspopup=\"dialog\"\n\t\t\taria-label=\"Enlarge\"\n\t\t\tdata-wp-init=\"callbacks.initTriggerButton\"\n\t\t\tdata-wp-on--click=\"actions.showLightbox\"\n\t\t\tdata-wp-style--right=\"state.imageButtonRight\"\n\t\t\tdata-wp-style--top=\"state.imageButtonTop\"\n\t\t>\n\t\t\t<svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"12\" height=\"12\" fill=\"none\" viewBox=\"0 0 12 12\">\n\t\t\t\t<path fill=\"#fff\" d=\"M2 0a2 2 0 0 0-2 2v2h1.5V2a.5.5 0 0 1 .5-.5h2V0H2Zm2 10.5H2a.5.5 0 0 1-.5-.5V8H0v2a2 2 0 0 0 2 2h2v-1.5ZM8 12v-1.5h2a.5.5 0 0 0 .5-.5V8H12v2a2 2 0 0 1-2 2H8Zm2-12a2 2 0 0 1 2 2v2h-1.5V2a.5.5 0 0 0-.5-.5H8V0h2Z\" \/>\n\t\t\t<\/svg>\n\t\t<\/button><\/figure>\n<\/div>\n\n\n<div style=\"height:10px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Nobody made it out unscathed:<\/strong> There are zero 0 failures.<\/li>\n\n\n\n<li><strong>But, let\u2019s talk about it:<\/strong> These are the drives that averaged less than two failures per quarter (though, not necessarily evenly distributed when you look at the data).\n<ul class=\"wp-block-list\">\n<li>HGST HMS5C4040BLE640 4TB: 5 failures<\/li>\n\n\n\n<li>Seagate ST12000NM000J 12TB: 4 failures&nbsp;<\/li>\n\n\n\n<li>Seagate ST14000NM000J 14TB: 7 failures&nbsp;<\/li>\n\n\n\n<li>Seagate ST16000NM002J 16TB: 1 failure<\/li>\n\n\n\n<li>Toshiba MG09ACA16TE 16TB: 3 failures<\/li>\n\n\n\n<li>WDC WUH722626ALE6L4 26TB: 1 failures.\n<ul class=\"wp-block-list\">\n<li>Note that this drive is in its first quarter of life, so it\u2019s hard to call this significant yet.&nbsp;<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n\n\n\n<p>And, all those drive tickets and models mean lots and lots of work\u2014we wrote a <a href=\"https:\/\/www.backblaze.com\/blog\/2025-thats-a-wrap-and-here-are-the-stats\/\" target=\"_blank\" rel=\"noreferrer noopener\">whole article<\/a> on that front, but here\u2019s a breakdown of hours spent in each data center.&nbsp;<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"738\" height=\"457\" src=\"https:\/\/backblazeprod.wpenginepowered.com\/wp-content\/uploads\/2026\/02\/Total-time-spent-per-data-center.png\" alt=\"A chart showing the total work time spent per data center in 2025. \" class=\"wp-image-112796\" srcset=\"https:\/\/backblazeprod.wpenginepowered.com\/wp-content\/uploads\/2026\/02\/Total-time-spent-per-data-center.png 738w, https:\/\/backblazeprod.wpenginepowered.com\/wp-content\/uploads\/2026\/02\/Total-time-spent-per-data-center-300x186.png 300w\" sizes=\"auto, (max-width: 738px) 100vw, 738px\" \/><\/figure>\n\n\n\n<div style=\"height:15px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p>And here\u2019s an even more interesting slice, from a drive perspective:<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure data-wp-context=\"{&quot;imageId&quot;:&quot;69d07393838c9&quot;}\" data-wp-interactive=\"core\/image\" data-wp-key=\"69d07393838c9\" class=\"aligncenter size-full wp-lightbox-container\"><img loading=\"lazy\" decoding=\"async\" width=\"921\" height=\"569\" data-wp-class--hide=\"state.isContentHidden\" data-wp-class--show=\"state.isContentVisible\" data-wp-init=\"callbacks.setButtonStyles\" data-wp-on--click=\"actions.showLightbox\" data-wp-on--load=\"callbacks.setButtonStyles\" data-wp-on-window--resize=\"callbacks.setButtonStyles\" src=\"https:\/\/backblazeprod.wpenginepowered.com\/wp-content\/uploads\/2026\/02\/Most-replaced-drive-by-capacity-.png\" alt=\"A graph showing the most replaced drives by capacity in 2025. \" class=\"wp-image-112794\" srcset=\"https:\/\/backblazeprod.wpenginepowered.com\/wp-content\/uploads\/2026\/02\/Most-replaced-drive-by-capacity-.png 921w, https:\/\/backblazeprod.wpenginepowered.com\/wp-content\/uploads\/2026\/02\/Most-replaced-drive-by-capacity--300x185.png 300w, https:\/\/backblazeprod.wpenginepowered.com\/wp-content\/uploads\/2026\/02\/Most-replaced-drive-by-capacity--768x474.png 768w\" sizes=\"auto, (max-width: 921px) 100vw, 921px\" \/><button\n\t\t\tclass=\"lightbox-trigger\"\n\t\t\ttype=\"button\"\n\t\t\taria-haspopup=\"dialog\"\n\t\t\taria-label=\"Enlarge\"\n\t\t\tdata-wp-init=\"callbacks.initTriggerButton\"\n\t\t\tdata-wp-on--click=\"actions.showLightbox\"\n\t\t\tdata-wp-style--right=\"state.imageButtonRight\"\n\t\t\tdata-wp-style--top=\"state.imageButtonTop\"\n\t\t>\n\t\t\t<svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"12\" height=\"12\" fill=\"none\" viewBox=\"0 0 12 12\">\n\t\t\t\t<path fill=\"#fff\" d=\"M2 0a2 2 0 0 0-2 2v2h1.5V2a.5.5 0 0 1 .5-.5h2V0H2Zm2 10.5H2a.5.5 0 0 1-.5-.5V8H0v2a2 2 0 0 0 2 2h2v-1.5ZM8 12v-1.5h2a.5.5 0 0 0 .5-.5V8H12v2a2 2 0 0 1-2 2H8Zm2-12a2 2 0 0 1 2 2v2h-1.5V2a.5.5 0 0 0-.5-.5H8V0h2Z\" \/>\n\t\t\t<\/svg>\n\t\t<\/button><\/figure>\n<\/div>\n\n\n<div style=\"height:10px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p>Yes, you\u2019ll see some funky drive sizes on that list; it\u2019s inclusive of all of our drives, not just the hard drives we include in this report.&nbsp;<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Comparing Drive Stats for 2023, 2024, and 2025<\/h2>\n\n\n\n<p>Let&#8217;s take a look back at the previous years&#8217; annual AFRs to get a sense of how 2025 compares: <\/p>\n\n\n\n<div class=\"wp-block-group\"><div class=\"wp-block-group__inner-container is-layout-constrained wp-block-group-is-layout-constrained\">\n<p class=\"has-text-align-center has-large-font-size\"><strong>Three Year Comparison of Annual Backblaze Hard Drive Failure Rates<\/strong><\/p>\n\n\n\n<p class=\"has-text-align-center has-extra-small-font-size\" style=\"line-height:1.2\">For drive models with &gt; 250 drives as of 12\/31\/25 and drive models with &gt; 50,000 drive days in 2025<br \/>Data for each year is inclusive of that year.<\/p>\n<\/div><\/div>\n\n\n<div class=\"wp-block-image\">\n<figure data-wp-context=\"{&quot;imageId&quot;:&quot;69d0739383c95&quot;}\" data-wp-interactive=\"core\/image\" data-wp-key=\"69d0739383c95\" class=\"aligncenter size-large wp-lightbox-container\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"927\" data-wp-class--hide=\"state.isContentHidden\" data-wp-class--show=\"state.isContentVisible\" data-wp-init=\"callbacks.setButtonStyles\" data-wp-on--click=\"actions.showLightbox\" data-wp-on--load=\"callbacks.setButtonStyles\" data-wp-on-window--resize=\"callbacks.setButtonStyles\" src=\"https:\/\/backblazeprod.wpenginepowered.com\/wp-content\/uploads\/2026\/02\/Q4-2025-Drive-Stats-3-Year-Comparison-1024x927.png\" alt=\"A table comparing the annual hard drive failure rates for 2023, 2024, and 2025.\" class=\"wp-image-112777\" srcset=\"https:\/\/backblazeprod.wpenginepowered.com\/wp-content\/uploads\/2026\/02\/Q4-2025-Drive-Stats-3-Year-Comparison-1024x927.png 1024w, https:\/\/backblazeprod.wpenginepowered.com\/wp-content\/uploads\/2026\/02\/Q4-2025-Drive-Stats-3-Year-Comparison-300x271.png 300w, https:\/\/backblazeprod.wpenginepowered.com\/wp-content\/uploads\/2026\/02\/Q4-2025-Drive-Stats-3-Year-Comparison-768x695.png 768w, https:\/\/backblazeprod.wpenginepowered.com\/wp-content\/uploads\/2026\/02\/Q4-2025-Drive-Stats-3-Year-Comparison-1536x1390.png 1536w, https:\/\/backblazeprod.wpenginepowered.com\/wp-content\/uploads\/2026\/02\/Q4-2025-Drive-Stats-3-Year-Comparison-2048x1853.png 2048w, https:\/\/backblazeprod.wpenginepowered.com\/wp-content\/uploads\/2026\/02\/Q4-2025-Drive-Stats-3-Year-Comparison-1568x1419.png 1568w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><button\n\t\t\tclass=\"lightbox-trigger\"\n\t\t\ttype=\"button\"\n\t\t\taria-haspopup=\"dialog\"\n\t\t\taria-label=\"Enlarge\"\n\t\t\tdata-wp-init=\"callbacks.initTriggerButton\"\n\t\t\tdata-wp-on--click=\"actions.showLightbox\"\n\t\t\tdata-wp-style--right=\"state.imageButtonRight\"\n\t\t\tdata-wp-style--top=\"state.imageButtonTop\"\n\t\t>\n\t\t\t<svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"12\" height=\"12\" fill=\"none\" viewBox=\"0 0 12 12\">\n\t\t\t\t<path fill=\"#fff\" d=\"M2 0a2 2 0 0 0-2 2v2h1.5V2a.5.5 0 0 1 .5-.5h2V0H2Zm2 10.5H2a.5.5 0 0 1-.5-.5V8H0v2a2 2 0 0 0 2 2h2v-1.5ZM8 12v-1.5h2a.5.5 0 0 0 .5-.5V8H12v2a2 2 0 0 1-2 2H8Zm2-12a2 2 0 0 1 2 2v2h-1.5V2a.5.5 0 0 0-.5-.5H8V0h2Z\" \/>\n\t\t\t<\/svg>\n\t\t<\/button><\/figure>\n<\/div>\n\n\n<div style=\"height:15px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h3 class=\"wp-block-heading\">Notes and observations<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>The annual AFR is down to 1.36%.<\/strong> We haven\u2019t seen those numbers since 2022 (1.37%). Cool!<\/li>\n<\/ul>\n\n\n<div class=\"wp-block-image\">\n<figure data-wp-context=\"{&quot;imageId&quot;:&quot;69d073938406e&quot;}\" data-wp-interactive=\"core\/image\" data-wp-key=\"69d073938406e\" class=\"aligncenter size-large wp-lightbox-container\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"633\" data-wp-class--hide=\"state.isContentHidden\" data-wp-class--show=\"state.isContentVisible\" data-wp-init=\"callbacks.setButtonStyles\" data-wp-on--click=\"actions.showLightbox\" data-wp-on--load=\"callbacks.setButtonStyles\" data-wp-on-window--resize=\"callbacks.setButtonStyles\" src=\"https:\/\/backblazeprod.wpenginepowered.com\/wp-content\/uploads\/2026\/02\/Q4-2025-Drive-Stats-Annual-AFR-2022\u20132025-1-1024x633.png\" alt=\"A year-on-year graph showing the annual hard drive failure rates from 2022\u20132025. \" class=\"wp-image-112779\" srcset=\"https:\/\/backblazeprod.wpenginepowered.com\/wp-content\/uploads\/2026\/02\/Q4-2025-Drive-Stats-Annual-AFR-2022\u20132025-1-1024x633.png 1024w, https:\/\/backblazeprod.wpenginepowered.com\/wp-content\/uploads\/2026\/02\/Q4-2025-Drive-Stats-Annual-AFR-2022\u20132025-1-300x185.png 300w, https:\/\/backblazeprod.wpenginepowered.com\/wp-content\/uploads\/2026\/02\/Q4-2025-Drive-Stats-Annual-AFR-2022\u20132025-1-768x475.png 768w, https:\/\/backblazeprod.wpenginepowered.com\/wp-content\/uploads\/2026\/02\/Q4-2025-Drive-Stats-Annual-AFR-2022\u20132025-1.png 1446w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><button\n\t\t\tclass=\"lightbox-trigger\"\n\t\t\ttype=\"button\"\n\t\t\taria-haspopup=\"dialog\"\n\t\t\taria-label=\"Enlarge\"\n\t\t\tdata-wp-init=\"callbacks.initTriggerButton\"\n\t\t\tdata-wp-on--click=\"actions.showLightbox\"\n\t\t\tdata-wp-style--right=\"state.imageButtonRight\"\n\t\t\tdata-wp-style--top=\"state.imageButtonTop\"\n\t\t>\n\t\t\t<svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"12\" height=\"12\" fill=\"none\" viewBox=\"0 0 12 12\">\n\t\t\t\t<path fill=\"#fff\" d=\"M2 0a2 2 0 0 0-2 2v2h1.5V2a.5.5 0 0 1 .5-.5h2V0H2Zm2 10.5H2a.5.5 0 0 1-.5-.5V8H0v2a2 2 0 0 0 2 2h2v-1.5ZM8 12v-1.5h2a.5.5 0 0 0 .5-.5V8H12v2a2 2 0 0 1-2 2H8Zm2-12a2 2 0 0 1 2 2v2h-1.5V2a.5.5 0 0 0-.5-.5H8V0h2Z\" \/>\n\t\t\t<\/svg>\n\t\t<\/button><\/figure>\n<\/div>\n\n\n<div style=\"height:10px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Slicing our data by drive size shows how impactful the shift to high capacity drives really is: based on the current quarterly data, our drive size breakdown looks like this:\n<ul class=\"wp-block-list\">\n<li>0\u201312TB: 25.13%<\/li>\n\n\n\n<li>14\u201316TB: 52.06%<\/li>\n\n\n\n<li>20TB+: 22.81%&nbsp;<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n\n\n\n<p>This is an already long report, so in the interest of time, we&#8217;ll just say this: There are multiple factors that go into how and why things are changing, including the <a href=\"https:\/\/www.backblaze.com\/blog\/are-hard-drives-getting-better-lets-revisit-the-bathtub-curve\/\" target=\"_blank\" rel=\"noreferrer noopener\">average age of drives<\/a> within our cohort, how much drive technology has improved over the years, how drives on the market have <a href=\"https:\/\/www.youtube.com\/watch?v=4TZ3F5bv2T0\">gotten bigger over time while the cost per GB<\/a> has also dropped, and how the <a href=\"https:\/\/www.tomshardware.com\/pc-components\/hdds\/hard-drive-prices-have-surged-by-an-average-of-46-percent-since-september-iconic-24tb-seagate-barracuda-now-usd500-as-ai-claims-another-victim\" target=\"_blank\" rel=\"noreferrer noopener\">current demand for drives<\/a> has been changing some of those things.  &nbsp;<\/p>\n\n\n\n<p>If that sentence sounds confusing, welcome to the world of enterprise drive buying. But, as always, we have to contextualize the real data we see with the way we source and use drives.&nbsp;<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Lifetime hard drive failure rates<\/h2>\n\n\n\n<div class=\"wp-block-group\"><div class=\"wp-block-group__inner-container is-layout-constrained wp-block-group-is-layout-constrained\">\n<p class=\"has-text-align-center has-large-font-size\"><strong>Backblaze Lifetime Hard Drive Failure Rates&nbsp;<\/strong><\/p>\n\n\n\n<p class=\"has-text-align-center has-extra-small-font-size\" style=\"line-height:1.2\">Reporting period ending December 31, 2025 inclusive<br \/>Drive models with &gt; 500 drives and &gt; 100,000 lifetime drive days<\/p>\n<\/div><\/div>\n\n\n<div class=\"wp-block-image\">\n<figure data-wp-context=\"{&quot;imageId&quot;:&quot;69d0739384773&quot;}\" data-wp-interactive=\"core\/image\" data-wp-key=\"69d0739384773\" class=\"aligncenter size-large wp-lightbox-container\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"881\" data-wp-class--hide=\"state.isContentHidden\" data-wp-class--show=\"state.isContentVisible\" data-wp-init=\"callbacks.setButtonStyles\" data-wp-on--click=\"actions.showLightbox\" data-wp-on--load=\"callbacks.setButtonStyles\" data-wp-on-window--resize=\"callbacks.setButtonStyles\" src=\"https:\/\/backblazeprod.wpenginepowered.com\/wp-content\/uploads\/2026\/02\/Q4-2025-Drive-Stats-Lifetime-1024x881.png\" alt=\"A table that shows the lifetime hard drive failure rates as of Q4 2025.\" class=\"wp-image-112782\" srcset=\"https:\/\/backblazeprod.wpenginepowered.com\/wp-content\/uploads\/2026\/02\/Q4-2025-Drive-Stats-Lifetime-1024x881.png 1024w, https:\/\/backblazeprod.wpenginepowered.com\/wp-content\/uploads\/2026\/02\/Q4-2025-Drive-Stats-Lifetime-300x258.png 300w, https:\/\/backblazeprod.wpenginepowered.com\/wp-content\/uploads\/2026\/02\/Q4-2025-Drive-Stats-Lifetime-768x661.png 768w, https:\/\/backblazeprod.wpenginepowered.com\/wp-content\/uploads\/2026\/02\/Q4-2025-Drive-Stats-Lifetime-1536x1321.png 1536w, https:\/\/backblazeprod.wpenginepowered.com\/wp-content\/uploads\/2026\/02\/Q4-2025-Drive-Stats-Lifetime-1568x1349.png 1568w, https:\/\/backblazeprod.wpenginepowered.com\/wp-content\/uploads\/2026\/02\/Q4-2025-Drive-Stats-Lifetime.png 1902w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><button\n\t\t\tclass=\"lightbox-trigger\"\n\t\t\ttype=\"button\"\n\t\t\taria-haspopup=\"dialog\"\n\t\t\taria-label=\"Enlarge\"\n\t\t\tdata-wp-init=\"callbacks.initTriggerButton\"\n\t\t\tdata-wp-on--click=\"actions.showLightbox\"\n\t\t\tdata-wp-style--right=\"state.imageButtonRight\"\n\t\t\tdata-wp-style--top=\"state.imageButtonTop\"\n\t\t>\n\t\t\t<svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"12\" height=\"12\" fill=\"none\" viewBox=\"0 0 12 12\">\n\t\t\t\t<path fill=\"#fff\" d=\"M2 0a2 2 0 0 0-2 2v2h1.5V2a.5.5 0 0 1 .5-.5h2V0H2Zm2 10.5H2a.5.5 0 0 1-.5-.5V8H0v2a2 2 0 0 0 2 2h2v-1.5ZM8 12v-1.5h2a.5.5 0 0 0 .5-.5V8H12v2a2 2 0 0 1-2 2H8Zm2-12a2 2 0 0 1 2 2v2h-1.5V2a.5.5 0 0 0-.5-.5H8V0h2Z\" \/>\n\t\t\t<\/svg>\n\t\t<\/button><\/figure>\n<\/div>\n\n\n<div style=\"height:15px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h3 class=\"wp-block-heading\">Notes and observations<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Ol\u2019 faithful: <\/strong>Lifetime AFR is 1.30% this quarter, and there\u2019s been no significant change in that number for quite some time.&nbsp;<\/li>\n\n\n\n<li><strong>Say hi to the new guy: <\/strong>The Toshiba MG11ACA24TE 24TB made the cut for the lifetime table. Last quarter, we deployed another 2,400 of these, bringing us to 4,806 drives total.&nbsp;<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">The Hard Drive dataset (and beyond)<\/h2>\n\n\n\n<p>Thank you, as always, for making it through ~2,500 or so words to examine the fun side of data. Here\u2019s our standard fine print:&nbsp;<\/p>\n\n\n\n<p>The complete dataset used to create the tables and charts in this report is available on our <a href=\"https:\/\/www.backblaze.com\/cloud-storage\/resources\/hard-drive-test-data\" target=\"_blank\" rel=\"noreferrer noopener\">Hard Drive Test Data page<\/a>. You can download and use this data for free for your own purpose. All we ask are three things:&nbsp;<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>You cite Backblaze as the source if you use the data;&nbsp;<\/li>\n\n\n\n<li>You accept that you are solely responsible for how you use the data, and;&nbsp;<\/li>\n\n\n\n<li>You do not sell this data itself to anyone; it is free.<\/li>\n<\/ol>\n\n\n\n<p>If you\u2019re a new Drive Stats fan, consider <a href=\"https:\/\/hub.backblaze.com\/drive-stats-newsletter-sign-up\" target=\"_blank\" rel=\"noreferrer noopener\">signing up for the newsletter.<\/a> If you\u2019re not ready for that kind of commitment, sound off in the comments section below or reach out <a href=\"mailto:evangelism@backblaze.com\" target=\"_blank\" rel=\"noreferrer noopener\">directly to us<\/a> to let us know what you\u2019re working on. Happy investigating!<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Backblaze&#8217;s 2025 Year-End Drive Stats Report provides an in-depth analysis of hard drive failure rates for Q4, the full year, and lifetime performance across its data center fleet.<\/p>\n","protected":false},"author":217,"featured_media":112776,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"content-type":"","footnotes":""},"categories":[7,434,438,457],"tags":[468],"class_list":["post-112774","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-cloud-storage","category-featured-1","category-featured-cloud-storage","category-hard-drive-stats","tag-b2cloud","entry"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.2 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Backblaze Drive Stats for 2025<\/title>\n<meta name=\"description\" content=\"Backblaze&#039;s 2025 Year-End Drive Stats Report provides an in-depth analysis of hard drive failure rates for Q4, the full year, and lifetime performance across its data center fleet.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.backblaze.com\/blog\/backblaze-drive-stats-for-2025\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Backblaze Drive Stats for 2025\" \/>\n<meta property=\"og:description\" content=\"Backblaze&#039;s 2025 Year-End Drive Stats Report provides an in-depth analysis of hard drive failure rates for Q4, the full year, and lifetime performance across its data center fleet.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.backblaze.com\/blog\/backblaze-drive-stats-for-2025\/\" \/>\n<meta property=\"og:site_name\" content=\"Backblaze Blog | Cloud Storage &amp; 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Stephanie Doyle is the Writer and Blog Operations Specialist at Backblaze. She specializes in taking complex topics and writing relatable, engaging, and user-friendly content. You can most often find her reading in public places, and can connect with her on LinkedIn. Pat Patterson is the chief technical evangelist at Backblaze. Over his three decades in the industry, Pat has built software and communities at Sun Microsystems, Salesforce, StreamSets, and Citrix. In his role at Backblaze, he creates and delivers content tailored to the needs of the hands-on technical professional, acts as the \u201cvoice of the developer\u201d on the Product team, and actively participates in the wider technical community. Outside the office, Pat runs far, having completed ultramarathons up to the 50 mile distance. 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