{"id":2882,"date":"2026-02-03T10:49:23","date_gmt":"2026-02-03T13:49:23","guid":{"rendered":"https:\/\/helpsysadmin.com.br\/blog\/?p=2882"},"modified":"2026-02-03T10:51:55","modified_gmt":"2026-02-03T13:51:55","slug":"vida-util-ssd-nvme-monitorar-tbw","status":"publish","type":"post","link":"https:\/\/helpsysadmin.com.br\/blog\/vida-util-ssd-nvme-monitorar-tbw\/","title":{"rendered":"Vida \u00datil de SSDs NVMe: Como Monitorar o TBW e Prever Falhas Antes que Aconte\u00e7am"},"content":{"rendered":"<div id=\"helps-2811526351\" class=\"helps-before-content-2 helps-entity-placement\"><script async src=\"https:\/\/pagead2.googlesyndication.com\/pagead\/js\/adsbygoogle.js?client=ca-pub-3661896953164277\"\r\n     crossorigin=\"anonymous\"><\/script>\r\n<!-- 2anuncios display quadrado -->\r\n<ins class=\"adsbygoogle\"\r\n     style=\"display:block\"\r\n     data-ad-client=\"ca-pub-3661896953164277\"\r\n     data-ad-slot=\"5051229894\"\r\n     data-ad-format=\"auto\"\r\n     data-full-width-responsive=\"true\"><\/ins>\r\n<script>\r\n     (adsbygoogle = window.adsbygoogle || []).push({});\r\n<\/script><\/div>\n<p>Monitorar a <strong>vida \u00fatil de SSDs NVMe<\/strong> \u00e9 essencial para evitar falhas inesperadas, perda de dados e downtime em servidores <a href=\"https:\/\/helpsysadmin.com.br\/blog\/como-instalar-crowdsec\/\" data-internallinksmanager029f6b8e52c=\"1\" title=\"Como instalar Crowdsec\" target=\"_blank\" rel=\"noopener\">Linux<\/a>. SSDs NVMe s\u00e3o r\u00e1pidos, mas <strong>n\u00e3o s\u00e3o eternos<\/strong>. Diferente de HDs, eles morrem por <strong>desgaste de escrita<\/strong>, e o principal indicador disso \u00e9 o <strong>TBW (Total Bytes Written)<\/strong>.<\/p>\n\n\n\n<p>A boa not\u00edcia?<br>\ud83d\udc49 <strong>O NVMe te conta quando est\u00e1 morrendo \u2014 se voc\u00ea souber onde olhar.<\/strong><\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-o-que-e-tbw-total-bytes-written\">\ud83d\udd0d O que \u00e9 TBW (Total Bytes Written)?<\/h2>\n\n\n\n<p>TBW indica <strong>quantos dados j\u00e1 foram gravados fisicamente no SSD<\/strong> ao longo da vida \u00fatil.<\/p>\n\n\n\n<p>Exemplo:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>SSD NVMe de 1 TB com TBW de <strong>600 TB<\/strong><\/li>\n\n\n\n<li>Significa que o fabricante garante ~600 TB de escrita antes do desgaste cr\u00edtico<\/li>\n<\/ul>\n\n\n\n<p>\ud83d\udca1 Importante:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Leitura N\u00c3O desgasta<\/strong><\/li>\n\n\n\n<li>Escrita = desgaste real das c\u00e9lulas NAND<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-por-que-monitorar-tbw-e-melhor-que-esperar-falhar\">\ud83e\udde0 Por que monitorar TBW \u00e9 melhor que \u201cesperar falhar\u201d?<\/h2>\n\n\n\n<p>Porque falha de SSD <strong>n\u00e3o avisa com barulho<\/strong>, como HD.<br>Ele simplesmente:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>entra em modo read-only<\/li>\n\n\n\n<li>come\u00e7a a gerar I\/O error<\/li>\n\n\n\n<li>some do sistema<\/li>\n<\/ul>\n\n\n\n<p>Monitorar TBW permite:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Planejar troca<\/li>\n\n\n\n<li>Evitar downtime<\/li>\n\n\n\n<li>Migrar dados com calma<\/li>\n\n\n\n<li>Evitar corrup\u00e7\u00e3o silenciosa<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-ferramenta-essencial-nvme-cli\">\ud83e\uddf0 Ferramenta essencial: <code>nvme-cli<\/code><\/h2>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-instalacao\">Instala\u00e7\u00e3o<\/h3>\n\n\n\n<p><strong>Debian \/ Ubuntu<\/strong><\/p>\n\n\n\n<div class=\"wp-block-codemirror-blocks-code-block code-block\"><pre>apt install nvme-cli\n<\/pre><\/div>\n\n\n\n<p><strong>RHEL \/ AlmaLinux \/ Rocky<\/strong><\/p>\n\n\n\n<div class=\"wp-block-codemirror-blocks-code-block code-block\"><pre>dnf install nvme-cli\n<\/pre><\/div>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-identificando-seus-discos-nvme\">\ud83d\udcca Identificando seus discos NVMe<\/h2>\n\n\n\n<div class=\"wp-block-codemirror-blocks-code-block code-block\"><pre>nvme list\n<\/pre><\/div>\n\n\n\n<p>Exemplo de sa\u00edda:<\/p>\n\n\n\n<div class=\"wp-block-codemirror-blocks-code-block code-block\"><pre>\/dev\/nvme0n1   Samsung SSD 980 PRO 1TB\n<\/pre><\/div>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-como-ver-o-tbw-real-do-ssd-nvme\">\ud83d\udcc8 Como ver o TBW real do SSD NVMe<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-comando-principal\">Comando principal<\/h3>\n\n\n\n<div class=\"wp-block-codemirror-blocks-code-block code-block\"><pre>nvme smart-log \/dev\/nvme0n1\n<\/pre><\/div>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-campos-importantes\">Campos importantes<\/h3>\n\n\n\n<p>Procure por:<\/p>\n\n\n\n<div class=\"wp-block-codemirror-blocks-code-block code-block\"><pre>Data Units Written:        123,456,789\nPercentage Used:           12%\nMedia and Data Integrity Errors: 0\nCritical Warning:          0\n<\/pre><\/div>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-convertendo-data-units-written-em-tbw\">\ud83d\udd22 Convertendo \u201cData Units Written\u201d em TBW<\/h2>\n\n\n\n<p>Cada <strong>Data Unit = 512.000 bytes (512 KB)<\/strong><\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-formula\">F\u00f3rmula:<\/h3>\n\n\n\n<div class=\"wp-block-codemirror-blocks-code-block code-block\"><pre>TBW = DataUnits \u00d7 512.000 \u00f7 1.000.000.000.000\n<\/pre><\/div>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-exemplo-pratico\">Exemplo pr\u00e1tico<\/h3>\n\n\n\n<div class=\"wp-block-codemirror-blocks-code-block code-block\"><pre>Data Units Written: 123.456.789\n<\/pre><\/div>\n\n\n\n<div class=\"wp-block-codemirror-blocks-code-block code-block\"><pre>123456789 \u00d7 512000 = 63.2 TB escritos\n<\/pre><\/div>\n\n\n\n<p>\ud83d\udca1 <strong>Dica r\u00e1pida via terminal<\/strong><\/p>\n\n\n\n<div class=\"wp-block-codemirror-blocks-code-block code-block\"><pre>echo &quot;scale=2; 123456789*512000\/1000000000000&quot; | bc\n<\/pre><\/div>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-interpretando-o-campo-percentage-used\">\ud83d\udcc9 Interpretando o campo \u201cPercentage Used\u201d<\/h2>\n\n\n\n<p>Esse campo \u00e9 <strong>ouro puro<\/strong>:<\/p>\n\n\n\n<div class=\"wp-block-codemirror-blocks-code-block code-block\"><pre>Percentage Used: 12%\n<\/pre><\/div>\n\n\n\n<p>Significa:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>0% \u2192 SSD novo<\/li>\n\n\n\n<li>100% \u2192 Vida \u00fatil estimada esgotada<\/li>\n\n\n\n<li>100% \u2192 Funcionando fora da especifica\u00e7\u00e3o (perigo real)<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-regra-pratica-de-sysadmin\">Regra pr\u00e1tica de sysadmin:<\/h3>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>Percentage Used<\/th><th>A\u00e7\u00e3o recomendada<\/th><\/tr><\/thead><tbody><tr><td>&lt; 70%<\/td><td>OK<\/td><\/tr><tr><td>70\u201385%<\/td><td>Monitorar semanalmente<\/td><\/tr><tr><td>85\u201395%<\/td><td>Planejar substitui\u00e7\u00e3o<\/td><\/tr><tr><td>&gt;95%<\/td><td>Backup urgente + troca<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-alertas-criticos-que-indicam-morte-proxima\">\ud83d\udea8 Alertas cr\u00edticos que indicam morte pr\u00f3xima<\/h2>\n\n\n\n<p>Fique atento se algum desses aparecer:<\/p>\n\n\n\n<div class=\"wp-block-codemirror-blocks-code-block code-block\"><pre>Critical Warning != 0\nMedia and Data Integrity Errors &gt; 0\nPercentage Used &gt; 90%\n<\/pre><\/div>\n\n\n\n<p>Ou no kernel:<\/p>\n\n\n\n<div class=\"wp-block-codemirror-blocks-code-block code-block\"><pre>dmesg | grep -i nvme\n<\/pre><\/div>\n\n\n\n<p>Mensagens como:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><code>I\/O error<\/code><\/li>\n\n\n\n<li><code>controller is down<\/code><\/li>\n\n\n\n<li><code>resetting controller<\/code><\/li>\n<\/ul>\n\n\n\n<p>\u26a0\ufe0f Isso j\u00e1 \u00e9 <strong>pr\u00e9-falha ou falha ativa<\/strong>.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-automatizando-monitoramento-cron\">\u23f1\ufe0f Automatizando monitoramento (cron)<\/h2>\n\n\n\n<p>Exemplo simples para log di\u00e1rio:<\/p>\n\n\n\n<div class=\"wp-block-codemirror-blocks-code-block code-block\"><pre>nvme smart-log \/dev\/nvme0n1 &gt;&gt; \/var\/log\/nvme-health.log\n<\/pre><\/div>\n\n\n\n<p>Ou alerta b\u00e1sico:<\/p>\n\n\n\n<div class=\"wp-block-codemirror-blocks-code-block code-block\"><pre>nvme smart-log \/dev\/nvme0n1 | grep &quot;Percentage Used&quot;\n<\/pre><\/div>\n\n\n\n<p>Voc\u00ea pode integrar isso com:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Zabbix<\/li>\n\n\n\n<li>Prometheus<\/li>\n\n\n\n<li>Netdata<\/li>\n\n\n\n<li>Script Bash + Telegram\/Slack<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-o-que-mais-consome-tbw-sem-voce-perceber\">\ud83d\udd25 O que MAIS consome TBW sem voc\u00ea perceber?<\/h2>\n\n\n\n<p>Vil\u00f5es cl\u00e1ssicos:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Swap em SSD<\/li>\n\n\n\n<li>Logs excessivos (access.log, error.log)<\/li>\n\n\n\n<li>Banco de dados sem tuning (MariaDB \/ PostgreSQL)<\/li>\n\n\n\n<li>Cache mal configurado<\/li>\n\n\n\n<li>Containers escrevendo demais (<code>overlay2<\/code>)<\/li>\n\n\n\n<li>WordPress com WP-Cron descontrolado<\/li>\n<\/ul>\n\n\n\n<p>\ud83d\udca1 SSD morre mais por <strong>m\u00e1 configura\u00e7\u00e3o<\/strong> do que por idade.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-nvme-x-sata-ssd-diferenca-no-monitoramento\">\ud83e\udde0 NVMe x SATA SSD: diferen\u00e7a no monitoramento?<\/h2>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>Item<\/th><th>NVMe<\/th><th>SATA SSD<\/th><\/tr><\/thead><tbody><tr><td>Ferramenta<\/td><td>nvme-cli<\/td><td>smartctl<\/td><\/tr><tr><td>M\u00e9trica TBW<\/td><td>Data Units Written<\/td><td>Total_LBAs_Written<\/td><\/tr><tr><td>Precis\u00e3o<\/td><td>Muito alta<\/td><td>Vari\u00e1vel<\/td><\/tr><tr><td>Alertas<\/td><td>Mais claros<\/td><td>Dependem do fabricante<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-checklist-de-prevencao-real\">\u2705 Checklist de preven\u00e7\u00e3o real<\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Monitorar TBW mensalmente<\/li>\n\n\n\n<li>Alertar acima de 80%<\/li>\n\n\n\n<li>Evitar swap agressivo<\/li>\n\n\n\n<li>Ajustar logs<\/li>\n\n\n\n<li>Backup sempre testado<\/li>\n\n\n\n<li>Planejar troca antes do desastre<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-verdade-inconveniente\">\ud83e\udde8 Verdade inconveniente<\/h2>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p>\u201cSSD n\u00e3o falha do nada.<br>Ele avisa \u2014 s\u00f3 ningu\u00e9m olha.\u201d<\/p>\n<\/blockquote>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-faq\">FAQ<\/h2>\n\n\n\n<div class=\"schema-faq wp-block-yoast-faq-block\"><div class=\"schema-faq-section\" id=\"faq-question-1770126338290\"><strong class=\"schema-faq-question\">O que \u00e9 TBW em SSD NVMe?<\/strong> <p class=\"schema-faq-answer\">TBW (Total Bytes Written) indica a quantidade total de dados gravados fisicamente no SSD ao longo de sua vida \u00fatil. Esse valor \u00e9 usado para medir o desgaste real das c\u00e9lulas NAND e prever quando o disco pode falhar.<\/p> <\/div> <div class=\"schema-faq-section\" id=\"faq-question-1770126372049\"><strong class=\"schema-faq-question\">Como verificar o TBW de um SSD NVMe no Linux?<\/strong> <p class=\"schema-faq-answer\">Voc\u00ea pode verificar o TBW usando o comando <code>nvme smart-log \/dev\/nvmeXn1<\/code>. O campo <strong>Data Units Written<\/strong> mostra a quantidade total de dados gravados no disco desde o primeiro uso.<\/p> <\/div> <div class=\"schema-faq-section\" id=\"faq-question-1770126386319\"><strong class=\"schema-faq-question\">O que significa \u201cPercentage Used\u201d em SSD NVMe?<\/strong> <p class=\"schema-faq-answer\">O campo <em>Percentage Used<\/em> indica quanto da vida \u00fatil estimada do SSD j\u00e1 foi consumida. Valores acima de 80% indicam desgaste avan\u00e7ado e recomendam planejamento de substitui\u00e7\u00e3o.<\/p> <\/div> <div class=\"schema-faq-section\" id=\"faq-question-1770126419335\"><strong class=\"schema-faq-question\">SSD NVMe pode falhar sem aviso?<\/strong> <p class=\"schema-faq-answer\">Sim. Diferente de HDs, SSDs NVMe n\u00e3o apresentam falhas mec\u00e2nicas vis\u00edveis. Em muitos casos, eles entram em modo somente leitura ou param de responder repentinamente se o desgaste n\u00e3o for monitorado.<\/p> <\/div> <div class=\"schema-faq-section\" id=\"faq-question-1770126444569\"><strong class=\"schema-faq-question\">Qual o valor seguro de Percentage Used em SSD NVMe?<\/strong> <p class=\"schema-faq-answer\">At\u00e9 70% \u00e9 considerado seguro. Entre 70% e 85% \u00e9 recomendado monitoramento frequente. Acima de 90%, o ideal \u00e9 realizar backup imediato e planejar a troca do disco.<\/p> <\/div> <div class=\"schema-faq-section\" id=\"faq-question-1770126471344\"><strong class=\"schema-faq-question\">O que mais desgasta SSDs NVMe em servidores?<\/strong> <p class=\"schema-faq-answer\">Uso excessivo de swap, logs mal configurados, bancos de dados sem tuning, containers escrevendo constantemente em disco e aplica\u00e7\u00f5es mal otimizadas s\u00e3o as principais causas de desgaste acelerado.<\/p> <\/div> <div class=\"schema-faq-section\" id=\"faq-question-1770126501624\"><strong class=\"schema-faq-question\">NVMe dura menos que SSD SATA?<\/strong> <p class=\"schema-faq-answer\">N\u00e3o necessariamente. SSDs NVMe geralmente possuem TBW maior e melhor controle de desgaste, mas por serem mais r\u00e1pidos, tamb\u00e9m podem ser mais exigidos em ambientes mal configurados.<\/p> <\/div> <\/div>\n","protected":false},"excerpt":{"rendered":"<p>Monitorar a vida \u00fatil de SSDs NVMe \u00e9 essencial para evitar falhas inesperadas, perda de dados e downtime em servidores Linux. SSDs [&hellip;]<\/p>\n","protected":false},"author":2,"featured_media":2883,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[9,1279],"tags":[2556,2558,2560,2562,2550,2554,2552],"class_list":["post-2882","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-gerenciamento-servidor","category-linux","tag-desgaste-ssd","tag-falha-de-ssd","tag-nvme-no-linux","tag-prevencao-de-falhas","tag-ssd-nvme","tag-tbw","tag-vida-util-ssd"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v27.5 (Yoast SEO v27.5) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>Vida \u00datil de SSDs NVMe: Como Monitorar o TBW e Prever Falhas<\/title>\n<meta name=\"description\" content=\"Descubra como monitorar o TBW de SSDs NVMe via terminal Linux, interpretar o desgaste real do disco e prever falhas antes de perder dados.\" \/>\n<meta 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Esse valor \u00e9 usado para medir o desgaste real das c\u00e9lulas NAND e prever quando o disco pode falhar.","inLanguage":"pt-BR"},"inLanguage":"pt-BR"},{"@type":"Question","@id":"https:\/\/helpsysadmin.com.br\/blog\/vida-util-ssd-nvme-monitorar-tbw\/#faq-question-1770126372049","position":2,"url":"https:\/\/helpsysadmin.com.br\/blog\/vida-util-ssd-nvme-monitorar-tbw\/#faq-question-1770126372049","name":"Como verificar o TBW de um SSD NVMe no Linux?","answerCount":1,"acceptedAnswer":{"@type":"Answer","text":"Voc\u00ea pode verificar o TBW usando o comando nvme smart-log \/dev\/nvmeXn1. O campo <strong>Data Units Written<\/strong> mostra a quantidade total de dados gravados no disco desde o primeiro uso.","inLanguage":"pt-BR"},"inLanguage":"pt-BR"},{"@type":"Question","@id":"https:\/\/helpsysadmin.com.br\/blog\/vida-util-ssd-nvme-monitorar-tbw\/#faq-question-1770126386319","position":3,"url":"https:\/\/helpsysadmin.com.br\/blog\/vida-util-ssd-nvme-monitorar-tbw\/#faq-question-1770126386319","name":"O que significa \u201cPercentage Used\u201d em SSD NVMe?","answerCount":1,"acceptedAnswer":{"@type":"Answer","text":"O campo <em>Percentage Used<\/em> indica quanto da vida \u00fatil estimada do SSD j\u00e1 foi consumida. Valores acima de 80% indicam desgaste avan\u00e7ado e recomendam planejamento de substitui\u00e7\u00e3o.","inLanguage":"pt-BR"},"inLanguage":"pt-BR"},{"@type":"Question","@id":"https:\/\/helpsysadmin.com.br\/blog\/vida-util-ssd-nvme-monitorar-tbw\/#faq-question-1770126419335","position":4,"url":"https:\/\/helpsysadmin.com.br\/blog\/vida-util-ssd-nvme-monitorar-tbw\/#faq-question-1770126419335","name":"SSD NVMe pode falhar sem aviso?","answerCount":1,"acceptedAnswer":{"@type":"Answer","text":"Sim. Diferente de HDs, SSDs NVMe n\u00e3o apresentam falhas mec\u00e2nicas vis\u00edveis. 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