{"id":56408,"date":"2021-01-24T13:46:07","date_gmt":"2021-01-24T21:46:07","guid":{"rendered":"https:drivesaversdatarecovery.com\/\/?p=56408"},"modified":"2026-02-25T05:45:57","modified_gmt":"2026-02-25T13:45:57","slug":"comparaison-des-raids","status":"publish","type":"post","link":"https:\/\/drivesaversdatarecovery.com\/fr-fr\/blog\/raid-comparison\/","title":{"rendered":"Comparaison technique des disques durs RAID"},"content":{"rendered":"<div class=\"wpb-content-wrapper\"><div class=\"vc_row wpb_row vc_row-fluid wpex-relative\"><div class=\"wpb_column vc_column_container vc_col-sm-2\"><div class=\"vc_column-inner\"><div class=\"wpb_wrapper\"><\/div><\/div><\/div><div class=\"wpb_column vc_column_container vc_col-sm-8\"><div class=\"vc_column-inner\"><div class=\"wpb_wrapper\">\n\t<div class=\"wpb_text_column wpb_content_element\" >\n\t\t<div class=\"wpb_wrapper\">\n\t\t\t<p><span style=\"font-weight: 400;\">Les petites et moyennes entreprises utilisent fr\u00e9quemment les r\u00e9seaux redondants de disques peu co\u00fbteux (RAID) pour augmenter leur capacit\u00e9 de stockage num\u00e9rique. Cette innovation dans la technologie des disques durs a r\u00e9volutionn\u00e9 la mani\u00e8re dont les entreprises sauvegardent leurs donn\u00e9es et a \u00e9vit\u00e9 \u00e0 beaucoup d'entre elles de devoir faire de gros investissements dans des disques surdimensionn\u00e9s et d'autres \u00e9quipements co\u00fbteux.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Mais qu'est-ce que le RAID ? Le RAID, c'est un peu comme le son surround. Plut\u00f4t que d'investir dans un haut-parleur, un amplificateur et un caisson de basse g\u00e9ants, vous pr\u00e9f\u00e9rez disposer de plusieurs haut-parleurs dans votre espace de vie. Tous vos haut-parleurs travaillent en harmonie (litt\u00e9ralement) pour produire un son global. Il en va de m\u00eame pour une matrice RAID. Plut\u00f4t qu'un seul grand disque dur, plusieurs disques durs sont utilis\u00e9s, mais ils agissent de concert comme un seul disque unifi\u00e9.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Il s'agit l\u00e0 d'une explication simple d'un mariage assez complexe de mat\u00e9riel et de logiciel. Mais l'exemple du son surround donne une bonne id\u00e9e de ce qu'est le RAID et de la mani\u00e8re dont cette technologie fonctionne.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Les diff\u00e9rents types ou niveaux de RAID constituent un niveau de complexit\u00e9 suppl\u00e9mentaire. Il en existe cinq : RAID 0, RAID 1, RAID 5, RAID 6 et RAID 10. Une comparaison de RAID, comme RAID 6 vs RAID 10, est un moyen utile d'examiner chaque type et d'identifier ce qui les rend uniques.<\/span><\/p>\n<h2><a href=\"https:\/\/drivesaversdatarecovery.com\/fr-fr\/services-de-recuperation-des-donnees\/appareils-pris-en-charge\/raid-nas-san\/recuperation-des-donnees-raid-0\/\"><span style=\"font-weight: 400;\">RAID 0<\/span><\/a><\/h2>\n<p><span style=\"font-weight: 400;\">Le RAID 0 est ax\u00e9 sur les performances. Cette matrice maximise la capacit\u00e9 et la vitesse en exploitant la puissance de calcul d'un nombre quelconque de disques et en les combinant pour cr\u00e9er une entit\u00e9 agissant comme un seul grand disque. Il n'y a pas de limite au nombre de disques combin\u00e9s dans le RAID 0, il suffit d'en avoir plus d'un.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Le principal inconv\u00e9nient de cette configuration est l'absence de tol\u00e9rance aux pannes. Si un disque tombe en panne, ils tombent tous en panne. Et il n'existe g\u00e9n\u00e9ralement aucune copie utilisable de vos donn\u00e9es, \u00e0 moins que le RAID n'ait \u00e9t\u00e9 sauvegard\u00e9 sur un disque ext\u00e9rieur \u00e0 la configuration.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Si l'on compare d'autres matrices RAID, le RAID 0 est la seule configuration qui garantisse la perte de donn\u00e9es. Si l'on compare le RAID 0 au RAID 5 ou le RAID 0 au RAID 1, ou encore le RAID 0 au RAID 10, toutes les autres configurations prot\u00e8gent les donn\u00e9es de l'utilisateur contre une perte de donn\u00e9es permanente.<\/span><\/p>\n<h2><a href=\"https:\/\/drivesaversdatarecovery.com\/fr-fr\/services-de-recuperation-des-donnees\/appareils-pris-en-charge\/raid-nas-san\/recuperation-des-donnees-raid-1\/\"><span style=\"font-weight: 400;\">RAID 1<\/span><\/a><\/h2>\n<p><span style=\"font-weight: 400;\">Une configuration RAID 1 est en fait un programme de sauvegarde tr\u00e8s sophistiqu\u00e9. Cette matrice comprend deux disques qui sont des copies identiques l'un de l'autre. Si l'un des disques durs tombe en panne, l'autre prend le relais et contient toutes les m\u00eames informations. Gr\u00e2ce \u00e0 cette duplication, vous ne devriez subir aucune perte de donn\u00e9es. Cette configuration permet d'obtenir des performances de lecture de haute qualit\u00e9, mais peut entra\u00eener un certain retard dans le temps d'\u00e9criture.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Lorsque vous comparez le RAID 1 et le RAID 5, vous remarquerez que les deux ont des temps de lecture \u00e9lev\u00e9s, mais sont plus lents en \u00e9criture. Ceci est int\u00e9ressant car l'un cr\u00e9e une copie carbone des donn\u00e9es (RAID 1) tandis que l'autre (RAID 5) se contente de les hacher et de stocker les informations sur l'ensemble de la matrice.<\/span><\/p>\n<h2><a href=\"https:\/\/drivesaversdatarecovery.com\/fr-fr\/services-de-recuperation-des-donnees\/appareils-pris-en-charge\/raid-nas-san\/recuperation-des-donnees-raid-5\/\"><span style=\"font-weight: 400;\">RAID 5<\/span><\/a><\/h2>\n<p><span style=\"font-weight: 400;\"><a href=\"\/fr-fr\/services-de-recuperation-des-donnees\/appareils-pris-en-charge\/raid-nas-san\/recuperation-des-donnees-raid\/\">Les configurations RAID 5 utilisent de trois \u00e0 seize disques pour fragmenter les donn\u00e9es.<\/a> et stocke les morceaux sur tous les disques de la configuration. C'est ce qu'on appelle la parit\u00e9, qui permet d'obtenir des temps de lecture incroyablement rapides, mais des temps d'\u00e9criture l\u00e9g\u00e8rement plus lents. Dans une configuration Raid 5, si l'un des disques tombe en panne, vos donn\u00e9es seront d\u00e9sorganis\u00e9es mais pr\u00e9serv\u00e9es et accessibles quelque part sur les disques restants.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Gardez toutefois \u00e0 l'esprit que les parit\u00e9s diminuent la capacit\u00e9 de stockage globale. Par exemple, un RAID 5 \u00e0 trois disques aura 33% d'espace de stockage en moins que l'espace combin\u00e9 indiqu\u00e9 sur les disques. Et une configuration \u00e0 quatre disques (le RAID 5 le plus r\u00e9pandu) perdra 25%.<\/span><\/p>\n<h2><a href=\"https:\/\/drivesaversdatarecovery.com\/fr-fr\/services-de-recuperation-des-donnees\/appareils-pris-en-charge\/raid-nas-san\/recuperation-des-donnees-raid-6\/\"><span style=\"font-weight: 400;\">RAID 6<\/span><\/a><\/h2>\n<p><span style=\"font-weight: 400;\">Ce niveau ou type de RAID est tr\u00e8s similaire au RAID 5, mais la plus grande diff\u00e9rence entre le RAID 5 et le RAID 6 est que la parit\u00e9 est pr\u00e9sente sur deux disques. Ainsi, contrairement au RAID 5, le niveau RAID 6 n\u00e9cessite un minimum de quatre disques. Mais comme cette configuration utilise autant de disques, deux d'entre eux peuvent tomber en panne en m\u00eame temps et vos donn\u00e9es seront toujours pr\u00e9serv\u00e9es.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Lorsque vous comparez la vitesse d'un RAID 5 \u00e0 celle d'un RAID 6, vous remarquerez que les vitesses de lecture des RAID 5 et 6 sont assez comparables. Cependant, les vitesses d'\u00e9criture sont plus lentes sur un RAID 6 que sur un RAID 5 en raison de la seconde parit\u00e9.<\/span><\/p>\n<h2><a href=\"https:\/\/drivesaversdatarecovery.com\/fr-fr\/services-de-recuperation-des-donnees\/appareils-pris-en-charge\/raid-nas-san\/recuperation-des-donnees-raid-10\/\"><span style=\"font-weight: 400;\">R\u00e9cup\u00e9ration de donn\u00e9es<\/span><\/a><\/h2>\n<p><span style=\"font-weight: 400;\">Le RAID 10 offre la grande efficacit\u00e9 du RAID 0 et la s\u00e9curit\u00e9 du RAID 1. Comme dans le RAID 0, les vitesses de lecture et d'\u00e9criture seront incroyablement rapides, bien que l'espace de stockage soit r\u00e9duit de moiti\u00e9, comme c'est g\u00e9n\u00e9ralement le cas dans une configuration RAID 1.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Cette matrice est moins susceptible d'entra\u00eener une perte de donn\u00e9es permanente. Comme toutes les donn\u00e9es sont dupliqu\u00e9es (comme c'est le cas dans le RAID 1), vous pouvez perdre un ou deux disques et vous attendre \u00e0 ce que toutes vos donn\u00e9es soient intactes.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Une comparaison du RAID 10 montre que peu de matrices peuvent rivaliser avec les performances et la s\u00e9curit\u00e9 du RAID 10. M\u00eame en comparant le RAID 10 au RAID 5, le RAID 10 reste le meilleur choix dans presque toutes les cat\u00e9gories.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Cette comparaison RAID d\u00e9montre que les configurations RAID sont le meilleur moyen d'optimiser le stockage et les performances de vos disques existants. Mais elles ne sont pas totalement infaillibles. <\/span><span style=\"font-weight: 400;\">Chaque ann\u00e9e, il y a 2,5% de chances que chaque disque de votre r\u00e9seau RAID tombe en panne.<\/span><span style=\"font-weight: 400;\">. Plus il y a de lecteurs, plus le risque de d\u00e9faillance est \u00e9lev\u00e9.\u00a0<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Dans ce cas, DriveSavers peut examiner votre disque et votre syst\u00e8me et d\u00e9terminer si vos donn\u00e9es sont r\u00e9cup\u00e9rables. <\/span><a href=\"\/fr-fr\/\"><span style=\"font-weight: 400;\">Contactez DriveSavers lors du prochain dysfonctionnement de votre r\u00e9seau RAID.<\/span><\/a><span style=\"font-weight: 400;\">!<\/span><\/p>\n\n\t\t<\/div>\n\t<\/div>\n<\/div><\/div><\/div><div class=\"wpb_column vc_column_container vc_col-sm-2\"><div class=\"vc_column-inner\"><div class=\"wpb_wrapper\"><\/div><\/div><\/div><\/div>\n<\/div>","protected":false},"excerpt":{"rendered":"Redundant Arrays of Inexpensive Disks (RAID) are frequently used by small to medium-sized businesses to help expand digital storage capacity. This innovation in hard drive technology has revolutionized the way businesses save their data and prevented many from having to make big capital investments in oversized drives and other expensive equipment. But what is RAID?&hellip;","protected":false},"author":25,"featured_media":56409,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"inline_featured_image":false,"footnotes":""},"categories":[264],"tags":[314],"post_series":[],"class_list":["post-56408","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog","tag-raid","entry","has-media"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v26.9 (Yoast SEO v27.3) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>RAID HDD 0, 1, 5, 6, &amp; 10 Comparison | DriveSavers<\/title>\n<meta name=\"description\" content=\"This hdd technology revolutionized the way businesses save data &amp; helped many from big capital investments in oversized drives. \u2713 View our RAID comparison!\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, 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