{"id":101,"date":"2026-05-17T13:32:58","date_gmt":"2026-05-17T11:32:58","guid":{"rendered":"https:\/\/blog.elpisia.com\/2026\/07\/22\/sauvegardes-la-regle-3-2-1-expliquee-simplement\/"},"modified":"2026-07-22T13:58:58","modified_gmt":"2026-07-22T11:58:58","slug":"sauvegardes-la-regle-3-2-1-expliquee-simplement","status":"publish","type":"post","link":"https:\/\/blog.elpisia.com\/en\/2026\/05\/17\/sauvegardes-la-regle-3-2-1-expliquee-simplement\/","title":{"rendered":"Backups: The 3-2-1 Rule Explained Simply"},"content":{"rendered":"<p>Hard drive failures don't just happen to other people\u2014and they always happen at the worst possible time. The solution comes down to three numbers: <strong>3-2-1<\/strong>.<\/p><h2>The Rule<\/h2><ul><li><strong>3<\/strong> copies of your data (the original plus two backups).<\/li><li><strong>2<\/strong> various storage media (external hard drive, NAS, cloud, etc.).<\/li><li><strong>1<\/strong> back up your data outside your home (to the cloud or a drive at the office).<\/li><\/ul><h2>In practice<\/h2><p>On a Mac, <strong>Time Machine<\/strong> + a cloud service will do. On a PC, file history + a cloud service. The important thing is that it\u2019s <strong>automatic<\/strong> \u2014 A manual backup is a backup you forget to do.<\/p><p>Need help setting this up? <a href=\"https:\/\/depannage.elpisia.com\" target=\"_blank\" rel=\"noopener\">We set up your backups remotely<\/a>, once and for all.<\/p>\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1280\" height=\"704\" src=\"https:\/\/blog.elpisia.com\/wp-content\/uploads\/2026\/07\/101.webp\" alt=\"Sauvegardes 3-2-1\" class=\"wp-image-153\" srcset=\"https:\/\/blog.elpisia.com\/wp-content\/uploads\/2026\/07\/101.webp 1280w, https:\/\/blog.elpisia.com\/wp-content\/uploads\/2026\/07\/101-300x165.webp 300w, https:\/\/blog.elpisia.com\/wp-content\/uploads\/2026\/07\/101-1024x563.webp 1024w, https:\/\/blog.elpisia.com\/wp-content\/uploads\/2026\/07\/101-768x422.webp 768w, https:\/\/blog.elpisia.com\/wp-content\/uploads\/2026\/07\/101-18x10.webp 18w\" sizes=\"auto, (max-width: 1280px) 100vw, 1280px\" \/><\/figure>","protected":false},"excerpt":{"rendered":"<p>By the time your hard drive fails, it's too late. The simple way to make sure you never lose a file again.<\/p>","protected":false},"author":1,"featured_media":102,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[6,11],"tags":[],"class_list":["post-101","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-depannage-informatique","category-securite-vie-privee"],"_links":{"self":[{"href":"https:\/\/blog.elpisia.com\/en\/wp-json\/wp\/v2\/posts\/101","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/blog.elpisia.com\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/blog.elpisia.com\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/blog.elpisia.com\/en\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/blog.elpisia.com\/en\/wp-json\/wp\/v2\/comments?post=101"}],"version-history":[{"count":1,"href":"https:\/\/blog.elpisia.com\/en\/wp-json\/wp\/v2\/posts\/101\/revisions"}],"predecessor-version":[{"id":138,"href":"https:\/\/blog.elpisia.com\/en\/wp-json\/wp\/v2\/posts\/101\/revisions\/138"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/blog.elpisia.com\/en\/wp-json\/wp\/v2\/media\/102"}],"wp:attachment":[{"href":"https:\/\/blog.elpisia.com\/en\/wp-json\/wp\/v2\/media?parent=101"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/blog.elpisia.com\/en\/wp-json\/wp\/v2\/categories?post=101"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/blog.elpisia.com\/en\/wp-json\/wp\/v2\/tags?post=101"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}