{"id":164915,"date":"2025-05-21T06:27:42","date_gmt":"2025-05-21T13:27:42","guid":{"rendered":"https:\/\/blog.everpuredata.com\/?p=164915"},"modified":"2025-06-17T08:41:37","modified_gmt":"2025-06-17T15:41:37","slug":"netapp-direct-flash-directflash-modules","status":"publish","type":"post","link":"https:\/\/blog.everpuredata.com\/fr\/purely-technical\/netapp-direct-flash-directflash-modules\/","title":{"rendered":"D\u00e9finir le record de fa\u00e7on droite\u00a0: DirectFlash et NetApp"},"content":{"rendered":"\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-7387b849 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column has-medium-font-size is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:70%\">\n<div class=\"wp-block-group has-border-color has-pure-orange-100-border-color has-primary-background-color has-background is-layout-flow wp-block-group-is-layout-flow\" style=\"border-width:2px;border-top-left-radius:16px;border-top-right-radius:16px;border-bottom-left-radius:16px;border-bottom-right-radius:16px;padding-top:30px;padding-right:30px;padding-bottom:30px;padding-left:30px\">\n<h3 class=\"wp-block-heading\" id=\"h-summary\">Synth\u00e8se<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">While NetApp continues to sing the praises of legacy tech, Pure Storage has taken a fundamentally different approach with our DirectFlash Modules (DFMs), offering an engineered storage system designed for the modern data center.<\/p>\n<\/div>\n\n\n\n<div class=\"wp-block-group pdf-print-hide is-content-justification-right is-nowrap is-layout-flex wp-container-core-group-is-layout-f726d978 wp-block-group-is-layout-flex\"><div class=\"pdfprnt-buttons\"><a href=\"https:\/\/blog.everpuredata.com\/fr\/wp-json\/wp\/v2\/posts\/164915?print=pdf\" class=\"pdfprnt-button pdfprnt-button-pdf\" target=\"_blank\" ><img decoding=\"async\" src=\"https:\/\/blog.everpuredata.com\/wp-content\/plugins\/pdf-print-pro\/images\/pdf.png?1953174090\" alt=\"image_pdf\" title=\"Afficher le PDF\" \/><\/a><a href=\"https:\/\/blog.everpuredata.com\/fr\/wp-json\/wp\/v2\/posts\/164915?print=print\" class=\"pdfprnt-button pdfprnt-button-print\" target=\"_blank\" ><img decoding=\"async\" src=\"https:\/\/blog.everpuredata.com\/wp-content\/plugins\/pdf-print-pro\/images\/print.png?245231721\" alt=\"image_print\" title=\"Contenu imprim\u00e9\" \/><\/a><\/div>\n<\/div>\n\n\n\n<div id=\"CONTENT\" class=\"wp-block-group is-layout-flow wp-block-group-is-layout-flow\">\n<p class=\"wp-block-paragraph\">Dans le stockage d\u2019entreprise, la dette technique ne se limite pas \u00e0 vous ralentir, elle d\u00e9finit votre plafond. Le r\u00e9cent article de blog de NetApp, <em>\u00ab\u00a0<\/em> <a href=\"https:\/\/www.netapp.com\/blog\/direct-flash-vs-ssds\/\" target=\"_blank\" rel=\"noreferrer noopener\"><em>Direct Flash vs SSD<\/em><\/a>\u00a0\u00bb, soutient que les SSD standard g\u00e9r\u00e9s par ONTAP sont \u00ab\u00a0suffisamment bons\u00a0\u00bb. Mais \u00e0 l\u2019\u00e8re du NVMe, \u00ab\u00a0assez bon\u00a0\u00bb ne suffit pas. Les modules Pure Storage<sup>\u00ae<\/sup> DirectFlash<sup>\u00ae<\/sup> (DFM) ne sont pas des am\u00e9liorations incr\u00e9mentielles, ils constituent une refonte architecturale. Voici une analyse chirurgicale des all\u00e9gations de NetApp, appuy\u00e9e par des faits techniques.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-1-performance-and-latency-firmware-overhead-vs-software-defined-flash\"><strong>1. Performance et latence\u00a0: Frais g\u00e9n\u00e9raux du firmware et Flash d\u00e9fini par logiciel<\/strong><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>NetApp explique\u00a0:<\/strong> Le firmware SSD mature surpasse les modules flash personnalis\u00e9s.<br\/><strong>R\u00e9alit\u00e9\u00a0:<\/strong> Les DFM \u00e9liminent la couche de traduction flash (FTL), contournant enti\u00e8rement les abstractions des contr\u00f4leurs SSD. Au lieu de cela, le OS d\u2019exploitation <a href=\"https:\/\/www.purestorage.com\/products\/storage-software\/purity.html\" target=\"_blank\" rel=\"noreferrer noopener\">Purity<\/a> g\u00e8re directement le placement de la NAND, la collecte des d\u00e9chets et le niveau d\u2019usure. Cela donne\u00a0:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Latence Sub- 250 \u03bcs<\/strong> (contre 300 \u00e0 500 \u03bcs pour les SSD g\u00e9r\u00e9s par ONTAP dans des conditions id\u00e9ales, et plus \u00e9lev\u00e9e en cas d\u2019amplification en \u00e9criture ou de sch\u00e9mas d\u2019E\/S mixtes)<\/li>\n\n\n\n<li><strong>Latence constante<\/strong> dans les charges de travail d\u2019E\/S mixtes gr\u00e2ce aux op\u00e9rations NAND coordonn\u00e9es par logiciel<\/li>\n\n\n\n<li><strong>IOPS adapt\u00e9es \u00e0 la pr\u00e9visibilit\u00e9 au niveau du syst\u00e8me<\/strong>, tandis que les SSD disponibles dans le commerce peuvent annoncer des IOPS brutes plus \u00e9lev\u00e9es, les DFM optimisent le d\u00e9bit de bout en bout avec une latence d\u00e9terministe et des performances constantes sur l\u2019ensemble des charges de travail, \u00e9vitant ainsi le comportement variable observ\u00e9 avec les couches de traduction flash et les op\u00e9rations en arri\u00e8re-plan<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">ONTAP s\u2019appuie toujours sur des FTL g\u00e9r\u00e9s par disque, optimis\u00e9s pour une compatibilit\u00e9 \u00e9tendue, et non un comportement sp\u00e9cifique \u00e0 la charge de travail. R\u00e9sultat\u00a0? Latence irr\u00e9guli\u00e8re, pauses impr\u00e9visibles et goulets d\u2019\u00e9tranglement induits par les micrologiciels.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-2-reliability-workload-tailored-flash-management\"><strong>2. Fiabilit\u00e9\u00a0: Gestion Flash adapt\u00e9e aux charges de travail<\/strong><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>NetApp explique\u00a0:<\/strong> Les SSD sont plus fiables gr\u00e2ce \u00e0 des techniques de firmware bien \u00e9tablies.<br\/><strong>R\u00e9alit\u00e9\u00a0:<\/strong> Les DFM d\u00e9chargent les m\u00e9canismes de fiabilit\u00e9 tels que le niveau d\u2019usure et le suivi de l\u2019\u00e9tat des blocs vers Purity, qui offre une visibilit\u00e9 globale sur les sch\u00e9mas d\u2019E\/S du syst\u00e8me. Cela permet\u00a0:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Une <a href=\"https:\/\/blog.everpuredata.com\/products\/better-science-volume-1-hardware-and-software-co-design-with-directflash\/\" target=\"_blank\" rel=\"noreferrer noopener\"><strong>endurance des supports 2,5 fois sup\u00e9rieure<\/strong><\/a> gr\u00e2ce \u00e0 un contr\u00f4le pr\u00e9cis de l\u2019amplification en \u00e9criture <\/li>\n\n\n\n<li>Collecte plus intelligente des d\u00e9chets adapt\u00e9e au comportement au niveau des applications<\/li>\n\n\n\n<li>Comportement pr\u00e9visible sans architecture heuristique de la bo\u00eete noire du firmware<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Le firmware SSD fonctionne toujours au niveau des composants, avec un surprovisionnement et une logique g\u00e9n\u00e9rique pour masquer les limites de la m\u00e9moire flash. Bien que cela \u00e9tende l\u2019endurance, il le fait souvent de mani\u00e8re inefficace et sans visibilit\u00e9 sur les sch\u00e9mas d\u2019E\/S \u00e0 l\u2019\u00e9chelle du syst\u00e8me. Il en r\u00e9sulte une latence et un comportement impr\u00e9visibles dans les charges de travail mixtes. En revanche, les DFM Pure Storage transf\u00e8rent la gestion de la m\u00e9moire flash vers le OS d\u2019exploitation Purity, qui assure une visibilit\u00e9 et un contr\u00f4le globaux, ce qui permet une gestion coordonn\u00e9e de la m\u00e9moire flash, une latence d\u00e9terministe et une tol\u00e9rance aux pannes de niveau entreprise sur l\u2019ensemble du syst\u00e8me. Il ne s\u2019agit pas seulement d\u2019une protection macro\u00e9conomique, mais aussi d\u2019une pr\u00e9visibilit\u00e9 technique.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-3-power-efficiency-less-abstraction-more-efficiency\"><strong>3. Efficacit\u00e9 \u00e9nerg\u00e9tique\u00a0: Moins d\u2019abstraction, plus d\u2019efficacit\u00e9<\/strong><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>NetApp explique\u00a0:<\/strong> Les SSD sont suffisamment efficaces, et DirectFlash ne pr\u00e9sente aucun avantage dans ce domaine.<br\/><strong>R\u00e9alit\u00e9\u00a0:<\/strong> Les DFM b\u00e9n\u00e9ficient d\u2019une efficacit\u00e9 \u00e9nerg\u00e9tique sup\u00e9rieure non pas parce que le mat\u00e9riel est diff\u00e9rent, mais parce que le logiciel est plus intelligent. En transf\u00e9rant la gestion de la m\u00e9moire flash du firmware du disque int\u00e9gr\u00e9 au OS d\u2019exploitation Purity, les DFM \u00e9liminent les processus redondants tels que la collecte de d\u00e9chets int\u00e9gr\u00e9e, les recherches de m\u00e9tadonn\u00e9es induites par FTL et les frais g\u00e9n\u00e9raux du contr\u00f4leur. Ce mod\u00e8le rationalis\u00e9 et d\u00e9fini par logiciel permet\u00a0:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Consommation d\u2019\u00e9nergie jusqu<a href=\"https:\/\/blog.everpuredata.com\/products\/better-science-volume-1-hardware-and-software-co-design-with-directflash\/\" target=\"_blank\" rel=\"noreferrer noopener\"><strong>\u2019\u00e0 30\u00a0%<\/strong><\/a> inf\u00e9rieure par t\u00e9raoctet<strong> <\/strong><\/li>\n\n\n\n<li>R\u00e9duction de la charge thermique et am\u00e9lioration de l\u2019efficacit\u00e9 \u00e9nerg\u00e9tique au niveau des racks<\/li>\n\n\n\n<li>\u00c9limination des cycles de DRAM\/contr\u00f4leur par disque qui ne contribuent pas aux performances des E\/S r\u00e9elles<\/li>\n\n\n\n<li>Mise en service et refroidissement simplifi\u00e9s pour les d\u00e9ploiements denses, avec marge thermique qui prend en charge une densit\u00e9 de rack plus \u00e9lev\u00e9e<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Les DFM de grande capacit\u00e9 augmentent \u00e9galement l\u2019efficacit\u00e9 \u00e9nerg\u00e9tique par To. Avec des modules individuels disponibles \u00e0 150TB et \u00e9volutifs jusqu\u2019\u00e0 300TB, les DFM offrent une densit\u00e9 par module nettement sup\u00e9rieure \u00e0 celle des SSD NetApp de 61,44 To, r\u00e9duisant ainsi le nombre total d\u2019appareils n\u00e9cessaires, ce qui r\u00e9duit encore davantage les \u00e9conomies d\u2019alimentation et de refroidissement au niveau des racks.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">La consommation d\u2019\u00e9nergie d\u2019un SSD est influenc\u00e9e non seulement par la quantit\u00e9 de capacit\u00e9 flash, mais \u00e9galement par les frais g\u00e9n\u00e9raux du traitement int\u00e9gr\u00e9, y compris la logique du contr\u00f4leur, les FTL et les cycles d\u2019actualisation de la DRAM, qui fonctionnent ind\u00e9pendamment du syst\u00e8me de stockage et entra\u00eenent des inefficacit\u00e9s.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-4-density-a-purpose-built-flash-footprint\"><strong>4. Densit\u00e9\u00a0: Une empreinte flash sur mesure<\/strong><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>NetApp explique\u00a0:<\/strong> Les SSD offrent une densit\u00e9 plus \u00e9lev\u00e9e.<br\/><strong>R\u00e9alit\u00e9\u00a0:<\/strong> NetApp affirme une meilleure densit\u00e9, mais les DFM offrent davantage de m\u00e9moire flash utilisable par RU en augmentant jusqu\u2019\u00e0 150TB (300 To annonc\u00e9s) par module, par rapport aux SSD de 61,44 To. Avec moins d\u2019appareils et moins de frais g\u00e9n\u00e9raux, les DFM simplifient la mise \u00e0 l\u2019\u00e9chelle et r\u00e9duisent l\u2019encombrement au niveau du rack.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Densit\u00e9 utilisable jusqu<strong>\u2019\u00e0 <\/strong>2 fois sup\u00e9rieure par RU par rapport aux bo\u00eetiers SSD en \u00e9tag\u00e8re<a href=\"https:\/\/blog.everpuredata.com\/purely-technical\/xcr4-technical\/\" target=\"_blank\" rel=\"noreferrer noopener\"><strong><\/strong><\/a> <\/li>\n\n\n\n<li><strong>Capacit\u00e9 DFM actuelle\u00a0: 150TB par module<\/strong>, avec un <strong>mod\u00e8le annonc\u00e9 de 300TB<\/strong>, par rapport aux nouveaux <a href=\"https:\/\/www.netapp.com\/data-storage\/disk-shelves-storage-media\/\" target=\"_blank\" rel=\"noreferrer noopener\"><strong>SSD NVMe de 61,44 To<\/strong><\/a> de NetApp\u00a0<\/li>\n\n\n\n<li>L\u2019architecture DirectFlash Shelf permet une \u00e9volutivit\u00e9 d\u00e9sagr\u00e9g\u00e9e de la capacit\u00e9 sans goulets d\u2019\u00e9tranglement traditionnels<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Les \u00e9tag\u00e8res NetApp utilisent des SSD NVMe standard, jusqu\u2019\u00e0 61,44 To, g\u00e9r\u00e9s par ONTAP. Mais le comportement de la m\u00e9moire flash est dict\u00e9 par le firmware d\u2019un SSD individuel, et non par le OS d\u2019exploitation du stockage. En revanche, les DFM Pure Storage transf\u00e8rent le contr\u00f4le flash vers le OS d\u2019exploitation Purity, ce qui permet une coordination globale des E\/S, de contr\u00f4le de l\u2019usure et de la collecte des d\u00e9chets.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Pourquoi est-ce important\u00a0:<\/strong> Avec NetApp, le firmware du disque augmente la variabilit\u00e9 sous charge, en particulier pendant les t\u00e2ches en arri\u00e8re-plan. Pure Storage \u00e9limine ces goulets d\u2019\u00e9tranglement, pour des performances plus pr\u00e9visibles, des applications plus rapides et des op\u00e9rations plus simples.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-5-proprietary-vs-precision-engineering\"><strong>5. Ing\u00e9nierie \u00ab\u00a0propri\u00e9taire\u00a0\u00bb ou ing\u00e9nierie de pr\u00e9cision<\/strong><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>NetApp explique\u00a0:<\/strong> Les DFM sont propri\u00e9taires et enferment les clients.<br\/><strong>R\u00e9alit\u00e9\u00a0:<\/strong> L\u2019int\u00e9gration n\u2019est pas un frein, c\u2019est une architecture bien pens\u00e9e. Les DFM Pure Storage sont con\u00e7us conjointement avec Purity pour optimiser l\u2019ensemble de la pile flash\u00a0:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><a href=\"https:\/\/blog.everpuredata.com\/products\/better-science-volume-1-hardware-and-software-co-design-with-directflash\/\" target=\"_blank\" rel=\"noreferrer noopener\"><strong>Gestion flash pilot\u00e9e par t\u00e9l\u00e9m\u00e9trie<\/strong><\/a> <strong>\u00a0:<\/strong> Le OS d\u2019exploitation Purity contr\u00f4le le placement en \u00e9criture, la collecte des d\u00e9chets et la disposition des donn\u00e9es \u00e0 l\u2019\u00e9chelle du syst\u00e8me, et non en aveugle au niveau du disque.\u00a0<\/li>\n\n\n\n<li><strong>Cycle de vie unifi\u00e9 du firmware\/logiciel\u00a0:<\/strong> Moins de pi\u00e8ces mobiles, moins de bo\u00eetiers de p\u00e9riph\u00e9rie. Cette int\u00e9gration r\u00e9duit les risques de mise \u00e0 niveau et \u00e9limine les incoh\u00e9rences courantes dans le firmware SSD.<\/li>\n\n\n\n<li><strong>Conception du firmware simplifi\u00e9e et r\u00e9siliente\u00a0:<\/strong> Sans d\u00e9pendance vis-\u00e0-vis du microcode SSD tiers, les DFM sont moins complexes et plus stables, ce qui r\u00e9duit le nombre de bogues et de r\u00e9gressions.<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">NetApp, quant \u00e0 elle, doit prendre en charge et int\u00e9grer des disques avec un firmware tiers, un firmware qu\u2019elle ne contr\u00f4le pas. Cela implique des bogues impr\u00e9visibles, des probl\u00e8mes de r\u00e9glage des performances et des risques lors de chaque mise \u00e0 jour de code. Avec Pure Storage, les logiciels et les supports \u00e9voluent ensemble pour garantir transparence, d\u00e9terminisme et coh\u00e9rence op\u00e9rationnelle.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-6-metadata-the-pure-storage-hierarchical-engine-vs-wafl-s-legacy\"><strong>6. Metadata\u00a0: Le moteur hi\u00e9rarchique Pure Storage par rapport \u00e0 l\u2019h\u00e9ritage WAFL<\/strong><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\u00ab\u00a0Purity organise et place les m\u00e9tadonn\u00e9es \u00e0 plusieurs niveaux de m\u00e9moire et de stockage pour garantir une faible latence constante \u00e0 grande \u00e9chelle.\u00a0\u00bb<br\/>\u2013<a href=\"https:\/\/blog.everpuredata.com\/perspectives\/better-science-volume-2-maps-metadata-and-the-pyramid\/\" target=\"_blank\" rel=\"noreferrer noopener\"> \u00ab\u00a0<em>Meilleure science, Vol. 5<\/em><\/a> cm<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Pure Storage Metadata Pyramid exploite\u00a0:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>SRAM et DRAM pour m\u00e9tadonn\u00e9es chaudes<\/li>\n\n\n\n<li>NVRAM pour la journalisation en vol<\/li>\n\n\n\n<li>Mise en page optimis\u00e9e du SSD pour les cartes froides, mais lues fr\u00e9quemment<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">L\u2019architecture WAFL d\u2019ONTAP, bien que puissante pour son temps, a \u00e9t\u00e9 con\u00e7ue autour de disques rotatifs. Son mod\u00e8le de m\u00e9tadonn\u00e9es par copie-\u00e9criture introduit l\u2019amplification des E\/S en \u00e9crivant de nouveaux blocs et en mettant \u00e0 jour les pointeurs au lieu de modifier les donn\u00e9es en place. Ce comportement peut entra\u00eener des pics de latence pendant les op\u00e9rations gourmandes en m\u00e9tadonn\u00e9es, telles que la cr\u00e9ation ou la suppression de snapshots, les reconstructions et la r\u00e9organisation des m\u00e9tadonn\u00e9es. Pour les clients, cela signifie plus de r\u00e9glage et moins de pr\u00e9visibilit\u00e9, en particulier \u00e0 grande \u00e9chelle et dans des conditions de charge de travail mixtes.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-7-investment-protection-and-simplicity\"><strong>7. Protection et simplicit\u00e9 des investissements<\/strong><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>NetApp explique\u00a0:<\/strong> ONTAP et les SSD offrent une protection et une simplicit\u00e9 d\u2019investissement sup\u00e9rieures gr\u00e2ce \u00e0 des options de support flexibles.<br\/><strong>R\u00e9alit\u00e9\u00a0:<\/strong> L\u2019architecture Evergreen de Pure Storage garantit une v\u00e9ritable protection des investissements gr\u00e2ce \u00e0 des mises \u00e0 niveau sans interruption, qu\u2019il s\u2019agisse de contr\u00f4leurs ou de supports, sans remplacement titanesque. Les DFM sont enti\u00e8rement g\u00e9r\u00e9s par Purity, et toute la complexit\u00e9 est isol\u00e9e de l\u2019utilisateur. La flexibilit\u00e9 de NetApp d\u00e9pend toujours du firmware du disque, de la compatibilit\u00e9 des \u00e9tag\u00e8res et des structures de m\u00e9tadonn\u00e9es de l\u2019\u00e8re WAFL. La simplicit\u00e9 r\u00e9side dans un cycle de vie logiciel-mat\u00e9riel int\u00e9gr\u00e9, et non dans le remplacement de SSD tous les trois \u00e0 cinq ans.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Et les clients Pure Storage affirment que\u00a0:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><a href=\"https:\/\/blog.everpuredata.com\/news-events\/hyperscaler-chooses-pure-to-replace-storage\/\" target=\"_blank\" rel=\"noreferrer noopener\"><strong>Validation Hyperscaler<\/strong><\/a> <strong>\u00a0:<\/strong> Meta a choisi Pure Storage <a href=\"https:\/\/www.purestorage.com\/products\/unified-block-file-storage.html\" target=\"_blank\" rel=\"noreferrer noopener\">FlashArray<\/a>\u2122 et DirectFlash pour prendre en charge ses charges de travail strat\u00e9giques d\u2019AI et d\u2019analytique. Car lorsque les environnements les plus exigeants du monde choisissent une plateforme, ce n\u2019est plus seulement une all\u00e9gation, c\u2019est une norme.<\/li>\n\n\n\n<li><strong>Clients Evergreen\u00a0:<\/strong> Quatre-vingt-dix-sept pour cent ou plus des clients <a href=\"https:\/\/www.purestorage.com\/products\/staas\/evergreen.html\" target=\"_blank\" rel=\"noreferrer noopener\">Evergreen<\/a><sup>\u00ae<\/sup> ont effectu\u00e9 au moins une mise \u00e0 niveau sans interruption des contr\u00f4leurs ou des supports, sans migration, sans rachat et sans arr\u00eat.<\/li>\n\n\n\n<li><strong>Satisfaction client\u00a0:<\/strong> Pure Storage d\u00e9tient un <a href=\"https:\/\/blog.everpuredata.com\/perspectives\/net-promoter-score-is-as-much-about-you-as-it-is-about-us\/\" target=\"_blank\" rel=\"noreferrer noopener\">NPS audit\u00e9 de 81<\/a>, par rapport au NPS historique de NetApp entre la trentaine et la quarantaine.<\/li>\n\n\n\n<li><strong>Exemple concret\u00a0:<\/strong> Un fournisseur SaaS majeur a consolid\u00e9 deux racks de baies AFF en une seule baie <a href=\"https:\/\/www.purestorage.com\/products\/unified-block-file-storage\/flasharray-xl.html\" target=\"_blank\" rel=\"noreferrer noopener\">FlashArray\/\/XL<\/a><sup>\u2122<\/sup> remplie de DFM, r\u00e9duisant ainsi l\u2019\u00e9nergie de 40\u00a0% et l\u2019espace rack de 75\u00a0%.<\/li>\n\n\n\n<li><strong>R\u00e9sultats r\u00e9els\u00a0:<\/strong> <a href=\"https:\/\/www.purestorage.com\/customers\/servicenow.html\" target=\"_blank\" rel=\"noreferrer noopener\">ServiceNow<\/a> a adopt\u00e9 la baie FlashArray de Pure Storage pour doubler sa capacit\u00e9 et am\u00e9liorer sa disponibilit\u00e9, augmenter la disponibilit\u00e9 et rationaliser la gestion de l\u2019infrastructure.<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-dfms-vs-ssds-head-to-head-engineering-comparison\"><strong>DFM et SSD\u00a0: Comparaison technique directe<\/strong><\/h2>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><tbody><tr><td><strong>Fonctionnalit\u00e9<\/strong><\/td><td><strong>SSD NetApp ONTAP<\/strong><\/td><td><strong>DFM Pure Storage <\/strong><\/td><\/tr><tr><td>couche de traduction flash<\/td><td>Pr\u00e9sent<\/td><td>\u00c9limin\u00e9<\/td><\/tr><tr><td>Gestion Metadata <\/td><td>Legacy (WAFL)<\/td><td>Optimis\u00e9 (Metadata)<\/td><\/tr><tr><td>Coh\u00e9rence de latence<\/td><td>Variable (d\u00e9pendant de FTL)<\/td><td>D\u00e9terministe<\/td><\/tr><tr><td>Frais g\u00e9n\u00e9raux de surallocation<\/td><td>\u00c9lev\u00e9<\/td><td>Bas<\/td><\/tr><tr><td>Rendement \u00e9nerg\u00e9tique<\/td><td>Standard<\/td><td>Jusqu\u2019\u00e0 30\u00a0% de valeur par To<\/td><\/tr><tr><td>Densit\u00e9 du rack<\/td><td>Limit\u00e9<\/td><td>Jusqu\u2019\u00e0 2 fois plus \u00e9lev\u00e9<\/td><\/tr><tr><td>Capacit\u00e9 max. par module<\/td><td>61,44 To<\/td><td>150TB (300 To annonc\u00e9s)<\/td><\/tr><tr><td>Fiabilit\u00e9<\/td><td>d\u00e9pendant du FTL<\/td><td>2,5 fois plus performant sans FTL<\/td><\/tr><tr><td>Performance des charges de travail mixtes<\/td><td>Variable<\/td><td>Jusqu\u2019\u00e0 50\u00a0% de meilleure qualit\u00e9<\/td><\/tr><tr><td>Co-conception mat\u00e9riel-logiciel<\/td><td>Non<\/td><td>Oui<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-final-chorus-the-architecture-gap\"><strong>Ch\u0153ur final\u00a0: L\u2019\u00e9cart d\u2019architecture<\/strong><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">NetApp continue d\u2019int\u00e9grer la logique vieillissante du syst\u00e8me de fichiers WAFL autour de SSD con\u00e7us pour une compatibilit\u00e9 g\u00e9n\u00e9rique. Pure Storage a con\u00e7u DirectFlash pour \u00e9liminer les couches de traduction, r\u00e9duire l\u2019entropie et optimiser les co\u00fbts de la technologie flash. NetApp estime que cela n\u2019est pas n\u00e9cessaire. Nous disons que c\u2019est in\u00e9vitable.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Les modules DirectFlash ne sont pas seulement un meilleur support flash, ils sont le pilier d\u2019un syst\u00e8me de stockage con\u00e7u pour le datacenter moderne.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Ce n\u2019est pas la vida loca, mais l\u2019avenir.<\/p>\n\n\n\n<div class=\"wp-block-cover is-light\" style=\"min-height:300px;aspect-ratio:unset;\"><img loading=\"lazy\" decoding=\"async\" width=\"2549\" height=\"880\" class=\"wp-block-cover__image-background wp-image-162530\" alt=\"Future of Data Storage\" src=\"https:\/\/blog.everpuredata.com\/wp-content\/uploads\/2023\/05\/Future-of-Data-Storage.png\" style=\"object-position:98% 45%\" data-object-fit=\"cover\" data-object-position=\"98% 45%\" srcset=\"https:\/\/blog.everpuredata.com\/wp-content\/uploads\/2023\/05\/Future-of-Data-Storage.png 2549w, https:\/\/blog.everpuredata.com\/wp-content\/uploads\/2023\/05\/Future-of-Data-Storage-728x251.png 728w, https:\/\/blog.everpuredata.com\/wp-content\/uploads\/2023\/05\/Future-of-Data-Storage-1024x354.png 1024w, https:\/\/blog.everpuredata.com\/wp-content\/uploads\/2023\/05\/Future-of-Data-Storage-768x265.png 768w, https:\/\/blog.everpuredata.com\/wp-content\/uploads\/2023\/05\/Future-of-Data-Storage-1536x530.png 1536w, https:\/\/blog.everpuredata.com\/wp-content\/uploads\/2023\/05\/Future-of-Data-Storage-2048x707.png 2048w\" sizes=\"auto, (max-width: 2549px) 100vw, 2549px\" \/><span aria-hidden=\"true\" class=\"wp-block-cover__background has-background-dim-0 has-background-dim\"><\/span><div class=\"wp-block-cover__inner-container has-global-padding is-layout-constrained wp-container-core-cover-is-layout-52e20806 wp-block-cover-is-layout-constrained\">\n<div class=\"wp-block-columns is-not-stacked-on-mobile is-layout-flex wp-container-core-columns-is-layout-1c666923 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-vertically-aligned-center is-layout-flow wp-container-core-column-is-layout-9053edae wp-block-column-is-layout-flow\" style=\"flex-basis:40%\">\n<div class=\"wp-block-group is-layout-flow wp-block-group-is-layout-flow\" style=\"margin-top:0px;margin-bottom:0px;padding-top:0px;padding-bottom:0px\">\n<p class=\"has-contrast-color has-text-color has-link-color wp-elements-1 wp-block-paragraph\" style=\"font-size:0.6rem\"><\/p>\n<\/div>\n\n\n\n<h2 class=\"wp-block-heading has-contrast-color has-text-color has-link-color wp-elements-2\" id=\"h-unleash-the-power-of-your-data\" style=\"margin-top:0px;margin-bottom:20px;font-size:clamp(1.352rem, 1.352rem + ((1vw - 0.2rem) * 1.413), 2.2rem);line-height:1.2\">Unleash the Power <br>of Your Data<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Learn how only Everpure can meet your data storage needs now\u2014and in the future.<\/p>\n\n\n\n<div class=\"wp-block-buttons is-content-justification-left is-nowrap is-layout-flex wp-container-core-buttons-is-layout-0fdbba7e wp-block-buttons-is-layout-flex\">\n<div class=\"wp-block-button\"><a class=\"wp-block-button__link has-secondary-background-color has-background has-custom-font-size wp-element-button\" href=\"https:\/\/www.purestorage.com\/future-of-storage.html\" style=\"padding-top:10px;padding-right:14px;padding-bottom:10px;padding-left:14px;font-size:clamp(0.875rem, 0.875rem + ((1vw - 0.2rem) * 0.208), 1rem);line-height:1.2\" target=\"_blank\" rel=\"noreferrer noopener\">See How<\/a><\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div><\/div>\n<\/div>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:30%\">\n<div class=\"wp-block-group sticky-content has-mint-green-500-background-color has-background is-layout-flow wp-block-group-is-layout-flow\" style=\"border-radius:20px;padding-top:20px;padding-right:20px;padding-bottom:20px;padding-left:20px\">\n<h2 class=\"wp-block-heading has-text-align-center has-ash-gray-500-color has-text-color has-link-color wp-elements-3\" id=\"h-title\" style=\"font-size:px\">A New Era<\/h2>\n\n\n\n<p class=\"has-text-align-center has-ash-gray-500-color has-text-color has-link-color wp-elements-4 wp-block-paragraph\" style=\"font-size:clamp(0.875rem, 0.875rem + ((1vw - 0.2rem) * 0.208), 1rem);\">Learn more about our vision.<\/p>\n\n\n\n<div class=\"wp-block-buttons is-content-justification-center is-layout-flex wp-container-core-buttons-is-layout-f8bdad00 wp-block-buttons-is-layout-flex\" style=\"margin-top:1em;margin-bottom:1em\">\n<div class=\"wp-block-button is-style-outline button-sticky is-style-outline--2\"><a class=\"wp-block-button__link has-cloud-white-500-color has-basil-green-500-background-color has-text-color has-background has-link-color has-inter-font-family has-custom-font-size wp-element-button\" href=\"https:\/\/www.purestorage.com\/pure-advantage\/vision.html\" style=\"border-style:none;border-width:0px;border-radius:4px;padding-top:14px;padding-right:16px;padding-bottom:14px;padding-left:16px;font-size:clamp(14px, 0.875rem + ((1vw - 3.2px) * 0.208), 16px);\" target=\"_blank\" rel=\"noreferrer noopener nofollow\">Find Out More<\/a><\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>Un r\u00e9cent article de blog de NetApp compare le stockage flash direct et les SSD. Ici, nous examinons quelques-unes des revendications de l\u2019article et examinons la v\u00e9ritable ing\u00e9nierie derri\u00e8re nos modules DirectFlash.<\/p>\n","protected":false},"author":421,"featured_media":193726,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":"","_ppma_block_editor_authors":""},"categories":[12962,13870,13867],"tags":[15216,15391],"content-position":[],"ppma_author":[14168],"class_list":["post-164915","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-purely-technical","category-products","tag-directflash-modules-fr","tag-future-of-data-storage-fr"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v28.7 (Yoast SEO v28.8) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>D\u00e9finir le record de fa\u00e7on droite\u00a0: DirectFlash et NetApp | Everpure Blog<\/title>\n<meta name=\"description\" content=\"Un article de blog de NetApp compare le stockage flash direct et les SSD. 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