{"id":3134,"date":"2025-08-19T15:32:08","date_gmt":"2025-08-19T07:32:08","guid":{"rendered":"https:\/\/oretonstorage.com\/?p=3134"},"modified":"2025-08-19T15:32:08","modified_gmt":"2025-08-19T07:32:08","slug":"entendendo-os-tipos-de-nand-ssd","status":"publish","type":"post","link":"https:\/\/oretonstorage.com\/pt\/blog\/entendendo-os-tipos-de-nand-ssd","title":{"rendered":"Entendendo os tipos de NAND: SLC, MLC, TLC e QLC"},"content":{"rendered":"<p data-start=\"117\" data-end=\"192\"><strong data-start=\"117\" data-end=\"190\">Como o flash NAND influencia o desempenho, a resist\u00eancia e a confiabilidade dos SSDs<\/strong><\/p>\n<p data-start=\"194\" data-end=\"473\">O n\u00facleo de cada <a href=\"https:\/\/oretonstorage.com\/pt\/ssd-manufacturer\/\">Unidade de estado s\u00f3lido (SSD)<\/a> \u00e9 <strong data-start=\"239\" data-end=\"260\">Mem\u00f3ria flash NAND<\/strong>que determina a velocidade, a resist\u00eancia, a capacidade e o custo da unidade. Em aplicativos empresariais, de cria\u00e7\u00e3o de conte\u00fado e de uso intensivo de dados, \u00e9 essencial conhecer os tipos de NAND e suas caracter\u00edsticas de desempenho.<\/p>\n<p data-start=\"475\" data-end=\"659\">Este artigo fornece uma an\u00e1lise detalhada de <strong data-start=\"521\" data-end=\"552\">SLC, MLC, TLC e QLC NAND<\/strong>explorando suas estrat\u00e9gias pr\u00e1ticas de desempenho, resist\u00eancia e otimiza\u00e7\u00e3o para cargas de trabalho do mundo real.<\/p>\n<hr data-start=\"661\" data-end=\"664\" \/>\n<h2 data-start=\"666\" data-end=\"688\">No\u00e7\u00f5es b\u00e1sicas de flash NAND<\/h2>\n<p data-start=\"690\" data-end=\"891\">O flash NAND \u00e9 um <strong data-start=\"706\" data-end=\"729\">mem\u00f3ria n\u00e3o vol\u00e1til<\/strong>ou seja, ret\u00e9m dados sem energia. Cada c\u00e9lula armazena cargas el\u00e9tricas que representam bits. Dependendo do n\u00famero de bits por c\u00e9lula, a NAND \u00e9 classificada como:<\/p>\n<ul data-start=\"893\" data-end=\"1088\">\n<li data-start=\"893\" data-end=\"941\">\n<p data-start=\"895\" data-end=\"941\"><strong data-start=\"895\" data-end=\"922\">SLC (c\u00e9lula de n\u00edvel \u00fanico)<\/strong> - 1 bit por c\u00e9lula<\/p>\n<\/li>\n<li data-start=\"942\" data-end=\"990\">\n<p data-start=\"944\" data-end=\"990\"><strong data-start=\"944\" data-end=\"970\">MLC (c\u00e9lula multin\u00edvel)<\/strong> - 2 bits por c\u00e9lula<\/p>\n<\/li>\n<li data-start=\"991\" data-end=\"1040\">\n<p data-start=\"993\" data-end=\"1040\"><strong data-start=\"993\" data-end=\"1020\">TLC (c\u00e9lula de n\u00edvel triplo)<\/strong> - 3 bits por c\u00e9lula<\/p>\n<\/li>\n<li data-start=\"1041\" data-end=\"1088\">\n<p data-start=\"1043\" data-end=\"1088\"><strong data-start=\"1043\" data-end=\"1068\">QLC (C\u00e9lula de quatro n\u00edveis)<\/strong> - 4 bits por c\u00e9lula<\/p>\n<\/li>\n<\/ul>\n<p data-start=\"1090\" data-end=\"1204\">\u00c0 medida que os bits por c\u00e9lula aumentam, <strong data-start=\"1117\" data-end=\"1145\">melhora na densidade de armazenamento<\/strong>, mas <strong data-start=\"1151\" data-end=\"1201\">a velocidade de grava\u00e7\u00e3o diminui e a resist\u00eancia da c\u00e9lula cai<\/strong>.<\/p>\n<p data-start=\"1206\" data-end=\"1372\">No projeto de SSD, a escolha da NAND est\u00e1 intimamente ligada a <strong data-start=\"1252\" data-end=\"1325\">algoritmos de controlador, estrat\u00e9gias de cache e provisionamento excessivo (OP)<\/strong>e todos eles afetam o desempenho no mundo real.<\/p>\n<hr data-start=\"1374\" data-end=\"1377\" \/>\n<h2 data-start=\"1379\" data-end=\"1416\">SLC: velocidade e resist\u00eancia m\u00e1ximas<\/h2>\n<p data-start=\"1418\" data-end=\"1529\"><strong data-start=\"1418\" data-end=\"1445\">C\u00e9lula de n\u00edvel \u00fanico (SLC)<\/strong> armazena um bit por c\u00e9lula, proporcionando o mais alto desempenho e a mais longa vida \u00fatil.<\/p>\n<ul data-start=\"1531\" data-end=\"1796\">\n<li data-start=\"1531\" data-end=\"1580\">\n<p data-start=\"1533\" data-end=\"1580\"><strong data-start=\"1533\" data-end=\"1552\">Resist\u00eancia (TBW)<\/strong>: At\u00e9 100.000 ciclos P\/E<\/p>\n<\/li>\n<li data-start=\"1581\" data-end=\"1645\">\n<p data-start=\"1583\" data-end=\"1645\"><strong data-start=\"1583\" data-end=\"1609\">Desempenho de E\/S aleat\u00f3ria<\/strong>: Lat\u00eancia extremamente baixa, IOPS alto<\/p>\n<\/li>\n<li data-start=\"1646\" data-end=\"1714\">\n<p data-start=\"1648\" data-end=\"1714\"><strong data-start=\"1648\" data-end=\"1666\">Energia e aquecimento<\/strong>: M\u00ednimo, ideal para ambientes de servidor densos<\/p>\n<\/li>\n<li data-start=\"1715\" data-end=\"1796\">\n<p data-start=\"1717\" data-end=\"1796\"><strong data-start=\"1717\" data-end=\"1730\">Casos de uso<\/strong>: Cache corporativo, armazenamento de registros de alta velocidade, bancos de dados cr\u00edticos<\/p>\n<\/li>\n<\/ul>\n<p data-start=\"1798\" data-end=\"1916\">A SLC \u00e9 rara em SSDs para consumidores devido ao custo, mas continua sendo essencial para aplicativos de n\u00edvel empresarial e sens\u00edveis \u00e0 lat\u00eancia.<\/p>\n<hr data-start=\"1918\" data-end=\"1921\" \/>\n<h2 data-start=\"1923\" data-end=\"1966\">MLC: desempenho e capacidade equilibrados<\/h2>\n<p data-start=\"1968\" data-end=\"2075\"><strong data-start=\"1968\" data-end=\"1994\">C\u00e9lula multin\u00edvel (MLC)<\/strong> armazena 2 bits por c\u00e9lula, oferecendo um equil\u00edbrio entre velocidade, resist\u00eancia e custo.<\/p>\n<ul data-start=\"2077\" data-end=\"2341\">\n<li data-start=\"2077\" data-end=\"2120\">\n<p data-start=\"2079\" data-end=\"2120\"><strong data-start=\"2079\" data-end=\"2092\">Resist\u00eancia<\/strong>: ~3.000-10.000 ciclos P\/E<\/p>\n<\/li>\n<li data-start=\"2121\" data-end=\"2252\">\n<p data-start=\"2123\" data-end=\"2252\"><strong data-start=\"2123\" data-end=\"2156\">Desempenho sequencial\/aleat\u00f3rio<\/strong>: Um pouco mais lento que o SLC, mas est\u00e1vel com <strong data-start=\"2199\" data-end=\"2250\">Algoritmos de cache de DRAM\/SSD e de balanceamento de grava\u00e7\u00e3o<\/strong><\/p>\n<\/li>\n<li data-start=\"2253\" data-end=\"2341\">\n<p data-start=\"2255\" data-end=\"2341\"><strong data-start=\"2255\" data-end=\"2268\">Casos de uso<\/strong>: SSDs empresariais, esta\u00e7\u00f5es de trabalho de ponta, cria\u00e7\u00e3o de conte\u00fado profissional<\/p>\n<\/li>\n<\/ul>\n<p data-start=\"2343\" data-end=\"2574\">As unidades MLC modernas geralmente implementam <strong data-start=\"2377\" data-end=\"2406\">Cache de pseudo-SLC (pSLC)<\/strong>O MLC\/TLC NAND, que usa temporariamente o MLC\/TLC NAND como cache de alta velocidade para melhorar o desempenho de grava\u00e7\u00e3o de curto prazo, \u00e9 essencial para edi\u00e7\u00e3o de v\u00eddeo, renderiza\u00e7\u00e3o 3D e outras cargas de trabalho de alta carga.<\/p>\n<hr data-start=\"2576\" data-end=\"2579\" \/>\n<h2 data-start=\"2581\" data-end=\"2614\">TLC: A corrente principal de consumidores<\/h2>\n<p data-start=\"2616\" data-end=\"2708\"><strong data-start=\"2616\" data-end=\"2643\">C\u00e9lula de n\u00edvel triplo (TLC)<\/strong> \u00e9 atualmente o tipo de NAND mais usado em SSDs para consumidores.<\/p>\n<ul data-start=\"2710\" data-end=\"2991\">\n<li data-start=\"2710\" data-end=\"2752\">\n<p data-start=\"2712\" data-end=\"2752\"><strong data-start=\"2712\" data-end=\"2725\">Resist\u00eancia<\/strong>: ~1.000-3.000 ciclos P\/E<\/p>\n<\/li>\n<li data-start=\"2753\" data-end=\"2837\">\n<p data-start=\"2755\" data-end=\"2837\"><strong data-start=\"2755\" data-end=\"2770\">Desempenho<\/strong>: Boas velocidades sequenciais, um pouco mais lento para pequenas grava\u00e7\u00f5es aleat\u00f3rias<\/p>\n<\/li>\n<li data-start=\"2838\" data-end=\"2926\">\n<p data-start=\"2840\" data-end=\"2926\"><strong data-start=\"2840\" data-end=\"2867\">Estrat\u00e9gias de otimiza\u00e7\u00e3o<\/strong>: Cache, coleta de lixo e provisionamento excessivo (OP)<\/p>\n<\/li>\n<li data-start=\"2927\" data-end=\"2991\">\n<p data-start=\"2929\" data-end=\"2991\"><strong data-start=\"2929\" data-end=\"2942\">Casos de uso<\/strong>: PCs para jogos, computa\u00e7\u00e3o di\u00e1ria, cria\u00e7\u00e3o de conte\u00fado<\/p>\n<\/li>\n<\/ul>\n<p data-start=\"2993\" data-end=\"3164\">A tecnologia avan\u00e7ada de controlador permite que as SSDs TLC ofere\u00e7am desempenho pr\u00f3ximo ao de MLC e, ao mesmo tempo, permane\u00e7am acess\u00edveis, o que as torna adequadas para a maioria dos usu\u00e1rios profissionais e de consumo.<\/p>\n<hr data-start=\"3166\" data-end=\"3169\" \/>\n<h2 data-start=\"3171\" data-end=\"3217\">QLC: armazenamento de alta densidade e econ\u00f4mico<\/h2>\n<p data-start=\"3219\" data-end=\"3343\"><strong data-start=\"3219\" data-end=\"3244\">C\u00e9lula de quatro n\u00edveis (QLC)<\/strong> armazena 4 bits por c\u00e9lula, maximizando a densidade de armazenamento, mas reduzindo a resist\u00eancia e o desempenho de grava\u00e7\u00e3o.<\/p>\n<ul data-start=\"3345\" data-end=\"3754\">\n<li data-start=\"3345\" data-end=\"3385\">\n<p data-start=\"3347\" data-end=\"3385\"><strong data-start=\"3347\" data-end=\"3360\">Resist\u00eancia<\/strong>: ~100-1.000 ciclos P\/E<\/p>\n<\/li>\n<li data-start=\"3386\" data-end=\"3480\">\n<p data-start=\"3388\" data-end=\"3480\"><strong data-start=\"3388\" data-end=\"3419\">Caracter\u00edsticas de desempenho<\/strong>: Boas velocidades sequenciais, grava\u00e7\u00f5es sustentadas ou aleat\u00f3rias mais lentas<\/p>\n<\/li>\n<li data-start=\"3481\" data-end=\"3671\">\n<p data-start=\"3483\" data-end=\"3513\"><strong data-start=\"3483\" data-end=\"3510\">Estrat\u00e9gias de otimiza\u00e7\u00e3o<\/strong>:<\/p>\n<ul data-start=\"3516\" data-end=\"3671\">\n<li data-start=\"3516\" data-end=\"3560\">\n<p data-start=\"3518\" data-end=\"3560\">Cache SLC din\u00e2mico para acelerar as grava\u00e7\u00f5es<\/p>\n<\/li>\n<li data-start=\"3563\" data-end=\"3618\">\n<p data-start=\"3565\" data-end=\"3618\">Provisionamento excessivo para melhorar a vida \u00fatil e a estabilidade<\/p>\n<\/li>\n<li data-start=\"3621\" data-end=\"3671\">\n<p data-start=\"3623\" data-end=\"3671\">Algoritmos de nivelamento de desgaste para equilibrar o uso de c\u00e9lulas<\/p>\n<\/li>\n<\/ul>\n<\/li>\n<li data-start=\"3672\" data-end=\"3754\">\n<p data-start=\"3674\" data-end=\"3754\"><strong data-start=\"3674\" data-end=\"3687\">Casos de uso<\/strong>: SSDs de grande capacidade, armazenamento de arquivos, cargas de trabalho de leitura intensiva<\/p>\n<\/li>\n<\/ul>\n<p data-start=\"3756\" data-end=\"3876\">O QLC \u00e9 ideal para aplica\u00e7\u00f5es que exigem <strong data-start=\"3796\" data-end=\"3825\">alta capacidade a baixo custo<\/strong>mas n\u00e3o para cargas de trabalho com uso intenso de grava\u00e7\u00e3o frequente.<\/p>\n<hr data-start=\"3878\" data-end=\"3881\" \/>\n<h2 data-start=\"3883\" data-end=\"3926\">Escolhendo o NAND certo para suas necessidades<\/h2>\n<div class=\"_tableContainer_sk2ct_1\">\n<div class=\"_tableWrapper_sk2ct_13 group flex w-fit flex-col-reverse\">\n<table class=\"w-fit min-w-(--thread-content-width)\" data-start=\"3928\" data-end=\"4436\">\n<thead data-start=\"3928\" data-end=\"3999\">\n<tr data-start=\"3928\" data-end=\"3999\">\n<th data-start=\"3928\" data-end=\"3940\" data-col-size=\"sm\">Tipo de NAND<\/th>\n<th data-start=\"3940\" data-end=\"3952\" data-col-size=\"sm\">Resist\u00eancia<\/th>\n<th data-start=\"3952\" data-end=\"3966\" data-col-size=\"sm\">Desempenho<\/th>\n<th data-start=\"3966\" data-end=\"3973\" data-col-size=\"sm\">Custo<\/th>\n<th data-start=\"3973\" data-end=\"3999\" data-col-size=\"md\">Caso de uso recomendado<\/th>\n<\/tr>\n<\/thead>\n<tbody data-start=\"4070\" data-end=\"4436\">\n<tr data-start=\"4070\" data-end=\"4157\">\n<td data-start=\"4070\" data-end=\"4082\" data-col-size=\"sm\">SLC<\/td>\n<td data-col-size=\"sm\" data-start=\"4082\" data-end=\"4094\">Muito alta<\/td>\n<td data-col-size=\"sm\" data-start=\"4094\" data-end=\"4106\">Muito alta<\/td>\n<td data-col-size=\"sm\" data-start=\"4106\" data-end=\"4113\">Alta<\/td>\n<td data-col-size=\"md\" data-start=\"4113\" data-end=\"4157\">Cache corporativo, cargas de trabalho cr\u00edticas<\/td>\n<\/tr>\n<tr data-start=\"4158\" data-end=\"4252\">\n<td data-start=\"4158\" data-end=\"4170\" data-col-size=\"sm\">MLC<\/td>\n<td data-start=\"4170\" data-end=\"4182\" data-col-size=\"sm\">Alta<\/td>\n<td data-col-size=\"sm\" data-start=\"4182\" data-end=\"4194\">Alta<\/td>\n<td data-col-size=\"sm\" data-start=\"4194\" data-end=\"4208\">M\u00e9dio-Alto<\/td>\n<td data-col-size=\"md\" data-start=\"4208\" data-end=\"4252\">SSDs empresariais, esta\u00e7\u00f5es de trabalho de ponta<\/td>\n<\/tr>\n<tr data-start=\"4253\" data-end=\"4344\">\n<td data-start=\"4253\" data-end=\"4265\" data-col-size=\"sm\">TLC<\/td>\n<td data-col-size=\"sm\" data-start=\"4265\" data-end=\"4277\">M\u00e9dio<\/td>\n<td data-col-size=\"sm\" data-start=\"4277\" data-end=\"4291\">M\u00e9dio-Alto<\/td>\n<td data-col-size=\"sm\" data-start=\"4291\" data-end=\"4300\">M\u00e9dio<\/td>\n<td data-col-size=\"md\" data-start=\"4300\" data-end=\"4344\">PCs de consumo, jogos, cria\u00e7\u00e3o de conte\u00fado<\/td>\n<\/tr>\n<tr data-start=\"4345\" data-end=\"4436\">\n<td data-start=\"4345\" data-end=\"4357\" data-col-size=\"sm\">QLC<\/td>\n<td data-start=\"4357\" data-end=\"4369\" data-col-size=\"sm\">Baixa<\/td>\n<td data-col-size=\"sm\" data-start=\"4369\" data-end=\"4381\">M\u00e9dio<\/td>\n<td data-col-size=\"sm\" data-start=\"4381\" data-end=\"4387\">Baixa<\/td>\n<td data-col-size=\"md\" data-start=\"4387\" data-end=\"4436\">Armazenamento de grande capacidade de arquivamento e leitura pesada<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<\/div>\n<p data-start=\"4438\" data-end=\"4545\">Ao selecionar a NAND, considere <strong data-start=\"4468\" data-end=\"4542\">tipo de carga de trabalho, intensidade de grava\u00e7\u00e3o, requisitos de capacidade e or\u00e7amento de custos<\/strong>.<\/p>\n<hr data-start=\"4547\" data-end=\"4550\" \/>\n<h2 data-start=\"4552\" data-end=\"4603\"><a href=\"https:\/\/oretonstorage.com\/pt\/ssd-manufacturer\/\">SSD de Oreton<\/a>: Otimizado para cargas de trabalho do mundo real<\/h2>\n<p data-start=\"4605\" data-end=\"4766\">A Oreton combina cuidadosamente <strong data-start=\"4631\" data-end=\"4715\">Sele\u00e7\u00e3o do tipo de NAND, controladores avan\u00e7ados, mecanismos de cache e estrat\u00e9gias de OP<\/strong> para fornecer SSDs adequadas a diversos aplicativos:<\/p>\n<ul data-start=\"4768\" data-end=\"4974\">\n<li data-start=\"4768\" data-end=\"4828\">\n<p data-start=\"4770\" data-end=\"4828\">SSDs de n\u00edvel empresarial \u2192 MLC \/ SLC de ponta para resist\u00eancia<\/p>\n<\/li>\n<li data-start=\"4829\" data-end=\"4904\">\n<p data-start=\"4831\" data-end=\"4904\">Cargas de trabalho criativas profissionais \u2192 TLC de alto desempenho com cache grande<\/p>\n<\/li>\n<li data-start=\"4905\" data-end=\"4974\">\n<p data-start=\"4907\" data-end=\"4974\">Armazenamento para consumidores e de grande capacidade \u2192 Solu\u00e7\u00f5es TLC\/QLC otimizadas<\/p>\n<\/li>\n<\/ul>\n<p data-start=\"4976\" data-end=\"5135\">Nossas SSDs garantem <strong data-start=\"4992\" data-end=\"5066\">desempenho est\u00e1vel e vida \u00fatil previs\u00edvel em cargas de trabalho do mundo real<\/strong>fornecendo o m\u00e1ximo de valor aos clientes em cen\u00e1rios de uso intensivo de dados.<\/p>\n<p data-start=\"4976\" data-end=\"5135\"><img decoding=\"async\" class=\"aligncenter wp-image-3137\" src=\"https:\/\/oretonstorage.com\/wp-content\/uploads\/2025\/08\/2025-06-17-781x1030.jpg\" alt=\"\" width=\"448\" height=\"591\" \/><\/p>\n<hr data-start=\"5137\" data-end=\"5140\" \/>\n<h2 data-start=\"5142\" data-end=\"5157\">Conclus\u00e3o<\/h2>\n<p data-start=\"5159\" data-end=\"5219\">\u00c9 fundamental conhecer os tipos de NAND ao escolher uma SSD.<\/p>\n<ul data-start=\"5221\" data-end=\"5356\">\n<li data-start=\"5221\" data-end=\"5272\">\n<p data-start=\"5223\" data-end=\"5272\"><strong data-start=\"5223\" data-end=\"5234\">SLC\/MLC<\/strong> \u2192 Maior resist\u00eancia e desempenho<\/p>\n<\/li>\n<li data-start=\"5273\" data-end=\"5316\">\n<p data-start=\"5275\" data-end=\"5316\"><strong data-start=\"5275\" data-end=\"5282\">TLC<\/strong> \u2192 Desempenho e custo equilibrados<\/p>\n<\/li>\n<li data-start=\"5317\" data-end=\"5356\">\n<p data-start=\"5319\" data-end=\"5356\"><strong data-start=\"5319\" data-end=\"5326\">QLC<\/strong> \u2192 Alta capacidade a baixo custo<\/p>\n<\/li>\n<\/ul>\n<p data-start=\"5358\" data-end=\"5640\">A otimiza\u00e7\u00e3o do controlador, as estrat\u00e9gias de cache e o excesso de provisionamento s\u00e3o igualmente importantes para determinar o desempenho no mundo real. Ao selecionar o design correto de NAND e SSD, as empresas e os usu\u00e1rios profissionais podem obter o equil\u00edbrio ideal de <strong data-start=\"5599\" data-end=\"5637\">custo, desempenho e confiabilidade<\/strong>.<\/p>","protected":false},"excerpt":{"rendered":"<p>Como o flash NAND influencia o desempenho, a resist\u00eancia e a confiabilidade dos SSDs O n\u00facleo de cada unidade de estado s\u00f3lido (SSD) \u00e9 a mem\u00f3ria flash NAND, que determina a velocidade, a resist\u00eancia, a capacidade e o custo da unidade. Em aplicativos empresariais, de cria\u00e7\u00e3o de conte\u00fado e de uso intensivo de dados, \u00e9 essencial compreender os tipos de NAND e suas caracter\u00edsticas de desempenho. Este artigo fornece uma an\u00e1lise detalhada de SLC, MLC, TLC,...<\/p>","protected":false},"author":3,"featured_media":3138,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-3134","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>Understanding NAND Types: SLC, MLC, TLC, and QLC -<\/title>\n<meta name=\"description\" content=\"Explore SLC, MLC, TLC, and QLC NAND types and learn how they impact SSD performance, endurance, and suitability for different workloads.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" 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