{"id":3130,"date":"2025-08-18T15:18:57","date_gmt":"2025-08-18T07:18:57","guid":{"rendered":"https:\/\/oretonstorage.com\/?p=3130"},"modified":"2025-08-18T15:18:57","modified_gmt":"2025-08-18T07:18:57","slug":"le-secret-de-la-capacite-des-ssd","status":"publish","type":"post","link":"https:\/\/oretonstorage.com\/fr\/blog\/le-secret-de-la-capacite-des-ssd","title":{"rendered":"Le secret de la capacit\u00e9 des SSD"},"content":{"rendered":"<p data-start=\"98\" data-end=\"123\"><strong data-start=\"98\" data-end=\"121\">Capacit\u00e9 interne du SSD<\/strong><\/p>\n<p data-start=\"125\" data-end=\"473\">Lors de l'achat d'un disque dur \u00e0 \u00e9tat solide (SSD), le premier chiffre qui attire g\u00e9n\u00e9ralement notre attention est le suivant <strong data-start=\"223\" data-end=\"235\">capacit\u00e9<\/strong>: 512 Go, 1 To, 2 To... Mais saviez-vous que la capacit\u00e9 indiqu\u00e9e sur la bo\u00eete n'est qu'une partie de l'histoire ? Derri\u00e8re ce chiffre se cache un m\u00e9lange de conception technique, de normes de marketing et m\u00eame de r\u00e9serves cach\u00e9es qui affectent les performances et la dur\u00e9e de vie.<\/p>\n<p data-start=\"475\" data-end=\"657\">Dans cet article, nous allons explorer les \"secrets\" de la capacit\u00e9 des SSD - ce que ces chiffres signifient r\u00e9ellement, pourquoi vous n'obtenez pas tout l'espace annonc\u00e9, et comment cela affecte l'utilisation r\u00e9elle.<\/p>\n<hr data-start=\"659\" data-end=\"662\" \/>\n<h2 data-start=\"664\" data-end=\"705\">Comprendre la capacit\u00e9 des SSD<\/h2>\n<p data-start=\"707\" data-end=\"870\">Si vous avez d\u00e9j\u00e0 branch\u00e9 un disque dur SSD de 1 To et constat\u00e9 qu'il n'y avait qu'environ <strong data-start=\"767\" data-end=\"777\">931 GB<\/strong> disponible, vous n'\u00eates pas le seul. Il ne s'agit pas d'un d\u00e9faut, mais de m\u00e9thodes de comptage diff\u00e9rentes :<\/p>\n<ul data-start=\"872\" data-end=\"1009\">\n<li data-start=\"872\" data-end=\"938\">\n<p data-start=\"874\" data-end=\"938\"><strong data-start=\"874\" data-end=\"908\">Fabricants (syst\u00e8me d\u00e9cimal)<\/strong>: 1 Go = 1 000 000 000 octets<\/p>\n<\/li>\n<li data-start=\"939\" data-end=\"1009\">\n<p data-start=\"941\" data-end=\"1009\"><strong data-start=\"941\" data-end=\"978\">Syst\u00e8mes d'exploitation (syst\u00e8me binaire)<\/strong>: 1 GiB = 1 073 741 824 octets<\/p>\n<\/li>\n<\/ul>\n<p data-start=\"1011\" data-end=\"1106\">Par cons\u00e9quent, l'espace de stockage appara\u00eet plus petit sur votre ordinateur que ce qui est imprim\u00e9 sur l'\u00e9tiquette.<\/p>\n<hr data-start=\"1108\" data-end=\"1111\" \/>\n<h2 data-start=\"1113\" data-end=\"1151\">Pourquoi votre disque dur SSD de 1 To montre-t-il moins d'espace ?<\/h2>\n<p data-start=\"1153\" data-end=\"1303\">Au-del\u00e0 de la diff\u00e9rence entre le d\u00e9cimal et le binaire, les disques SSD r\u00e9servent \u00e9galement une partie de leur capacit\u00e9 \u00e0 un usage interne. C'est ce qu'on appelle <strong data-start=\"1274\" data-end=\"1300\">surprovisionnement (OP)<\/strong>.<\/p>\n<p data-start=\"1305\" data-end=\"1340\">L'espace r\u00e9serv\u00e9 permet au SSD de :<\/p>\n<ul data-start=\"1341\" data-end=\"1477\">\n<li data-start=\"1341\" data-end=\"1382\">\n<p data-start=\"1343\" data-end=\"1382\">Remplacer les cellules NAND us\u00e9es au fil du temps<\/p>\n<\/li>\n<li data-start=\"1383\" data-end=\"1439\">\n<p data-start=\"1385\" data-end=\"1439\">Maintenir les performances d'\u00e9criture en r\u00e9duisant la fragmentation<\/p>\n<\/li>\n<li data-start=\"1440\" data-end=\"1477\">\n<p data-start=\"1442\" data-end=\"1477\">Am\u00e9liorer l'endurance et la fiabilit\u00e9<\/p>\n<\/li>\n<\/ul>\n<p data-start=\"1479\" data-end=\"1689\">Par exemple, un disque annonc\u00e9 comme <strong data-start=\"1514\" data-end=\"1522\">1 TB<\/strong> peut inclure physiquement plus de m\u00e9moire NAND (par exemple, 1 024 Go), mais en allouer une partie \u00e0 ces op\u00e9rations en arri\u00e8re-plan, ce qui garantit une dur\u00e9e de vie plus longue et des performances plus fluides.<\/p>\n<hr data-start=\"1691\" data-end=\"1694\" \/>\n<h2 data-start=\"1696\" data-end=\"1748\">Le surapprovisionnement : Espace cach\u00e9 pour la performance<\/h2>\n<p data-start=\"1750\" data-end=\"1957\">Tous les disques SSD ne r\u00e9servent pas la m\u00eame quantit\u00e9 d'espace. Les disques SSD grand public peuvent ne laisser que quelques pour cent d'espace cach\u00e9, tandis que les disques SSD de classe entreprise r\u00e9servent souvent <strong data-start=\"1890\" data-end=\"1906\">jusqu'\u00e0 20-30%<\/strong> de capacit\u00e9 NAND totale pour g\u00e9rer les charges de travail 24\/7.<\/p>\n<p data-start=\"1959\" data-end=\"1997\">Ce choix de conception a une incidence directe :<\/p>\n<ul data-start=\"1998\" data-end=\"2227\">\n<li data-start=\"1998\" data-end=\"2074\">\n<p data-start=\"2000\" data-end=\"2074\"><strong data-start=\"2000\" data-end=\"2019\">Endurance (TBW)<\/strong> - L'OP \u00e9lev\u00e9 prolonge la dur\u00e9e de vie du disque en cas de charge de travail \u00e9lev\u00e9e.<\/p>\n<\/li>\n<li data-start=\"2075\" data-end=\"2149\">\n<p data-start=\"2077\" data-end=\"2149\"><strong data-start=\"2077\" data-end=\"2092\">Coh\u00e9rence<\/strong> - Plus de r\u00e9serve signifie une performance plus stable dans le temps<\/p>\n<\/li>\n<li data-start=\"2150\" data-end=\"2227\">\n<p data-start=\"2152\" data-end=\"2227\"><strong data-start=\"2152\" data-end=\"2160\">Co\u00fbt<\/strong> - Les disques durs ayant un OP plus \u00e9lev\u00e9 ont g\u00e9n\u00e9ralement un prix plus \u00e9lev\u00e9 par Go.<\/p>\n<\/li>\n<\/ul>\n<hr data-start=\"2229\" data-end=\"2232\" \/>\n<h2 data-start=\"2234\" data-end=\"2285\">Effets du contr\u00f4leur et du micrologiciel sur les performances<\/h2>\n<p data-start=\"2287\" data-end=\"2611\">Un autre \"secret\" r\u00e9side dans le syst\u00e8me d'information sur la s\u00e9curit\u00e9 (SSD). <strong data-start=\"2322\" data-end=\"2349\">contr\u00f4leur et micrologiciel<\/strong>. Le nivellement intelligent de l'usure, la collecte des d\u00e9chets et la correction des erreurs consomment tous des ressources de la capacit\u00e9 r\u00e9serv\u00e9e. Les contr\u00f4leurs avanc\u00e9s \u00e9quilibrent efficacement la vitesse et l'endurance, garantissant que la capacit\u00e9 utilisable fonctionne comme pr\u00e9vu tout au long de la dur\u00e9e de vie du disque.<\/p>\n<hr data-start=\"2613\" data-end=\"2616\" \/>\n<h2 data-start=\"2618\" data-end=\"2660\">Choisir le bon SSD pour vos besoins<\/h2>\n<p data-start=\"2662\" data-end=\"2803\">Lors du choix d'un disque SSD, la capacit\u00e9 ne se r\u00e9sume pas \u00e0 la quantit\u00e9 de donn\u00e9es que vous pouvez stocker, mais \u00e0 la mani\u00e8re dont le disque est con\u00e7u. Tenez compte des conseils suivants :<\/p>\n<ul data-start=\"2804\" data-end=\"3128\">\n<li data-start=\"2804\" data-end=\"2882\">\n<p data-start=\"2806\" data-end=\"2882\">Pour <strong data-start=\"2810\" data-end=\"2827\">utilisateurs g\u00e9n\u00e9raux<\/strong>: Un disque SSD grand public de capacit\u00e9 standard suffira.<\/p>\n<\/li>\n<li data-start=\"2883\" data-end=\"3006\">\n<p data-start=\"2885\" data-end=\"3006\">Pour <strong data-start=\"2889\" data-end=\"2918\">cr\u00e9ateurs de contenu et joueurs<\/strong>: Recherchez des disques ayant une meilleure endurance (TBW) et une bonne optimisation des microprogrammes.<\/p>\n<\/li>\n<li data-start=\"3007\" data-end=\"3128\">\n<p data-start=\"3009\" data-end=\"3128\">Pour <strong data-start=\"3013\" data-end=\"3037\">charges de travail des entreprises<\/strong>: Donner la priorit\u00e9 aux disques SSD avec un surprovisionnement important et une coh\u00e9rence prouv\u00e9e en cas de stress.<\/p>\n<\/li>\n<\/ul>\n<hr data-start=\"3130\" data-end=\"3133\" \/>\n<h2 data-start=\"3135\" data-end=\"3181\"><a href=\"https:\/\/oretonstorage.com\/fr\/fabricant-de-ssd\/\">Oreton SSD<\/a>: La fiabilit\u00e9 dans le monde r\u00e9el<\/h2>\n<p data-start=\"3183\" data-end=\"3440\">Chez Oreton, nous concevons des disques SSD avec \u00e0 la fois <strong data-start=\"3219\" data-end=\"3248\">performance et endurance<\/strong> \u00e0 l'esprit. Notre gamme de produits \u00e9quilibre la capacit\u00e9 utilisable avec un surdimensionnement optimis\u00e9, garantissant que ce que vous voyez sur la feuille de sp\u00e9cifications se traduit par des performances fiables dans des cas d'utilisation r\u00e9els.<\/p>\n<p data-start=\"3442\" data-end=\"3642\">Qu'il s'agisse de constructions personnelles, de flux de travail professionnels ou de centres de donn\u00e9es d'entreprise, les disques SSD Oreton offrent une capacit\u00e9 qui va au-del\u00e0 des chiffres - combinant vitesse, stabilit\u00e9 et valeur \u00e0 long terme.<\/p>\n<p data-start=\"3442\" data-end=\"3642\"><img decoding=\"async\" class=\"wp-image-3132 aligncenter\" src=\"https:\/\/oretonstorage.com\/wp-content\/uploads\/2025\/08\/DSC02918-1030x580.jpg\" alt=\"\" width=\"752\" height=\"423\" srcset=\"https:\/\/oretonstorage.com\/wp-content\/uploads\/2025\/08\/DSC02918-1030x580.jpg 1030w, https:\/\/oretonstorage.com\/wp-content\/uploads\/2025\/08\/DSC02918-300x169.jpg 300w, https:\/\/oretonstorage.com\/wp-content\/uploads\/2025\/08\/DSC02918-768x432.jpg 768w, https:\/\/oretonstorage.com\/wp-content\/uploads\/2025\/08\/DSC02918-1536x864.jpg 1536w, https:\/\/oretonstorage.com\/wp-content\/uploads\/2025\/08\/DSC02918-2048x1152.jpg 2048w, https:\/\/oretonstorage.com\/wp-content\/uploads\/2025\/08\/DSC02918-800x450.jpg 800w\" sizes=\"(max-width: 752px) 100vw, 752px\" \/><\/p>\n<hr data-start=\"3644\" data-end=\"3647\" \/>\n<h2 data-start=\"3649\" data-end=\"3693\">Conclusion : Comprendre le stockage SSD<\/h2>\n<p data-start=\"3695\" data-end=\"3892\">La capacit\u00e9 d'un SSD ne se r\u00e9sume pas au chiffre figurant sur l'\u00e9tiquette. Entre les math\u00e9matiques binaires et d\u00e9cimales, l'over-provisioning cach\u00e9 et les optimisations au niveau du contr\u00f4leur, il se passe beaucoup de choses sous la surface.<\/p>\n<p data-start=\"3894\" data-end=\"4157\">La compr\u00e9hension de ces \"secrets\" vous aide \u00e0 faire de meilleurs choix. Ainsi, la prochaine fois que vous ach\u00e8terez un disque SSD, vous saurez exactement pourquoi un disque de 1 To offre moins d'espace et comment ces r\u00e9serves cach\u00e9es travaillent en coulisse pour pr\u00e9server la s\u00e9curit\u00e9 de vos donn\u00e9es et la stabilit\u00e9 de vos performances.<\/p>","protected":false},"excerpt":{"rendered":"<p>Inside SSD Capacity When purchasing a solid-state drive (SSD), the first number that usually catches our attention is capacity: 512 GB, 1 TB, 2 TB\u2026 But did you know that the capacity listed on the box is only part of the story? Behind that number lies a mix of technical design, marketing standards, and even&#8230;<\/p>","protected":false},"author":3,"featured_media":3131,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-3130","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.5 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>The Secret of SSD Capacity - Inside SSD Storage Explained<\/title>\n<meta name=\"description\" content=\"Learn why SSD capacity shows less than advertised. Explore over-provisioning, usable storage, and how design impacts performance and reliability.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/oretonstorage.com\/fr\/blog\/le-secret-de-la-capacite-des-ssd\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"The Secret of SSD Capacity - Inside SSD Storage Explained\" \/>\n<meta property=\"og:description\" content=\"Learn why SSD capacity shows less than advertised. Explore over-provisioning, usable storage, and how design impacts performance and reliability.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/oretonstorage.com\/fr\/blog\/le-secret-de-la-capacite-des-ssd\" \/>\n<meta property=\"article:published_time\" content=\"2025-08-18T07:18:57+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/oretonstorage.com\/wp-content\/uploads\/2025\/08\/1733380936202.png\" \/>\n\t<meta property=\"og:image:width\" content=\"1200\" \/>\n\t<meta property=\"og:image:height\" content=\"627\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/png\" \/>\n<meta name=\"author\" content=\"Echo\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"\u00c9crit par\" \/>\n\t<meta name=\"twitter:data1\" content=\"Echo\" \/>\n\t<meta name=\"twitter:label2\" content=\"Dur\u00e9e de lecture estim\u00e9e\" \/>\n\t<meta name=\"twitter:data2\" content=\"3 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\\\/\\\/oretonstorage.com\\\/blog\\\/the-secret-of-ssd-capacity#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/oretonstorage.com\\\/blog\\\/the-secret-of-ssd-capacity\"},\"author\":{\"name\":\"Echo\",\"@id\":\"https:\\\/\\\/oretonstorage.com\\\/#\\\/schema\\\/person\\\/691da96ccdd2a899702e96be4c0b892e\"},\"headline\":\"The Secret of SSD Capacity\",\"datePublished\":\"2025-08-18T07:18:57+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\\\/\\\/oretonstorage.com\\\/blog\\\/the-secret-of-ssd-capacity\"},\"wordCount\":588,\"image\":{\"@id\":\"https:\\\/\\\/oretonstorage.com\\\/blog\\\/the-secret-of-ssd-capacity#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/oretonstorage.com\\\/wp-content\\\/uploads\\\/2025\\\/08\\\/1733380936202.png\",\"articleSection\":[\"Blog\"],\"inLanguage\":\"fr-FR\"},{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/oretonstorage.com\\\/blog\\\/the-secret-of-ssd-capacity\",\"url\":\"https:\\\/\\\/oretonstorage.com\\\/blog\\\/the-secret-of-ssd-capacity\",\"name\":\"The Secret of SSD Capacity - Inside SSD Storage Explained\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/oretonstorage.com\\\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\\\/\\\/oretonstorage.com\\\/blog\\\/the-secret-of-ssd-capacity#primaryimage\"},\"image\":{\"@id\":\"https:\\\/\\\/oretonstorage.com\\\/blog\\\/the-secret-of-ssd-capacity#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/oretonstorage.com\\\/wp-content\\\/uploads\\\/2025\\\/08\\\/1733380936202.png\",\"datePublished\":\"2025-08-18T07:18:57+00:00\",\"author\":{\"@id\":\"https:\\\/\\\/oretonstorage.com\\\/#\\\/schema\\\/person\\\/691da96ccdd2a899702e96be4c0b892e\"},\"description\":\"Learn why SSD capacity shows less than advertised. 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