{"id":1131,"date":"2025-09-04T11:21:20","date_gmt":"2025-09-04T14:21:20","guid":{"rendered":"https:\/\/freestore.com.br\/?p=1131"},"modified":"2025-09-04T11:29:28","modified_gmt":"2025-09-04T14:29:28","slug":"1131","status":"publish","type":"post","link":"https:\/\/freestore.com.br\/blog\/1131\/","title":{"rendered":"Como Monitorar a Sa\u00fade de HDDs e SSDs com o Smartctl no Linux"},"content":{"rendered":"<article itemscope itemtype=\"https:\/\/schema.org\/Article\">\n<style>\n    .fs-article { max-width: 860px; margin: 0 auto; padding: 1rem; color: #111827; font: 16px\/1.65 system-ui, -apple-system, Segoe UI, Roboto, Ubuntu, Arial, sans-serif; }\n    .fs-article h1 { font-size: 2rem; line-height: 1.25; margin: .6em 0 .3em }\n    .fs-article h2 { font-size: 1.4rem; margin: 1.2em 0 .5em }\n    .fs-article h3 { font-size: 1.1rem; margin: 1em 0 .4em }\n    .fs-article p { margin: .6em 0 }\n    .fs-article ul, .fs-article ol { margin: .6em 0 .6em 1.2em }\n    .fs-article pre { background: #0b1020; color: #e5e7eb; padding: 1rem; border-radius: 10px; overflow: auto }\n    .fs-article code { font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, \"Liberation Mono\", monospace }\n    .fs-article .table-wrap { overflow-x: auto; margin: 1rem 0 }\n    .fs-article table { width: 100%; border-collapse: collapse; font-size: .97rem }\n    .fs-article th, .fs-article td { border: 1px solid #e5e7eb; padding: .6rem .7rem; vertical-align: top }\n    .fs-article th { background: #f3f4f6; text-align: left }\n    .fs-article .note { background: #f1f5f9; border-left: 4px solid #0ea5e9; padding: .8rem 1rem; border-radius: 6px; margin: 1rem 0 }\n    .fs-article .cta { background: #0ea5e9; color: #fff; padding: .9rem 1.1rem; border-radius: 10px; display: inline-block; text-decoration: none; font-weight: 600 }\n    .fs-article .cta:hover { filter: brightness(.95) }\n  <\/style>\n<header>\n<p>\n      Uma falha em <strong>HDDs<\/strong> ou <strong>SSDs<\/strong> pode causar indisponibilidade e perda de dados.<br \/>\n      Veja como usar o <strong>smartctl<\/strong> para prever falhas, acompanhar desgaste e manter sua infraestrutura confi\u00e1vel.\n    <\/p>\n<\/header>\n<p>\n    O Linux oferece uma ferramenta poderosa e gratuita para monitorar discos: o <strong>smartctl<\/strong>, parte do pacote<br \/>\n    <a href=\"https:\/\/www.smartmontools.org\/\" target=\"_blank\" rel=\"noopener\">smartmontools<\/a>.<br \/>\n    A seguir, voc\u00ea ver\u00e1 o essencial para instalar, executar testes e interpretar m\u00e9tricas em <strong>HDDs<\/strong> e <strong>SSDs<\/strong>.\n  <\/p>\n<section>\n<h2 id=\"o-que-e-smart\">O que \u00e9 o S.M.A.R.T.?<\/h2>\n<p>\n      O <strong>S.M.A.R.T.<\/strong> (<em>Self-Monitoring, Analysis and Reporting Technology<\/em>) registra m\u00e9tricas internas de desempenho,<br \/>\n      erros e desgaste. Na pr\u00e1tica, funciona como uma \u201ccaixa-preta\u201d do disco, ajudando a:\n    <\/p>\n<ul>\n<li>Detectar <strong>falhas iminentes<\/strong>;<\/li>\n<li>Estimar a <strong>vida \u00fatil<\/strong> do dispositivo;<\/li>\n<li>Planejar <strong>trocas preventivas<\/strong> antes da pane.<\/li>\n<\/ul>\n<\/section>\n<section>\n<h2 id=\"instalacao\">Como instalar o Smartmontools<\/h2>\n<pre><code># Debian\/Ubuntu\nsudo apt install smartmontools -y\n# Red Hat \/ Oracle Linux \/ CentOS\nsudo yum install smartmontools -y\n# Fedora\nsudo dnf install smartmontools -y<\/code><\/pre>\n<\/section>\n<section>\n<h2 id=\"comandos-essenciais\">Comandos essenciais do smartctl<\/h2>\n<h3>1) Identificar informa\u00e7\u00f5es do disco<\/h3>\n<pre><code>smartctl -i \/dev\/sda<\/code><\/pre>\n<h3>2) Verificar status geral de sa\u00fade<\/h3>\n<pre><code>smartctl -H \/dev\/sda<\/code><\/pre>\n<h3>3) Listar todos os atributos S.M.A.R.T.<\/h3>\n<pre><code>smartctl -A \/dev\/sda<\/code><\/pre>\n<h3>4) Executar testes de diagn\u00f3stico<\/h3>\n<p><strong>Teste curto<\/strong> (alguns minutos):<\/p>\n<pre><code>smartctl -t short \/dev\/sda<\/code><\/pre>\n<p><strong>Teste longo<\/strong> (pode levar horas):<\/p>\n<pre><code>smartctl -t long \/dev\/sda<\/code><\/pre>\n<p>Ap\u00f3s a conclus\u00e3o, consulte os resultados:<\/p>\n<pre><code>smartctl -l selftest \/dev\/sda<\/code><\/pre>\n<\/section>\n<section>\n<h2 id=\"metricas\">HDDs vs SSDs: o que monitorar?<\/h2>\n<p>Embora a ferramenta seja a mesma, os indicadores mudam entre discos mec\u00e2nicos e eletr\u00f4nicos.<\/p>\n<table>\n<thead>\n<tr>\n<th>Categoria<\/th>\n<th>HDD (mec\u00e2nicos)<\/th>\n<th>SSD (SATA\/NVMe)<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td><strong>Setores defeituosos<\/strong><\/td>\n<td><code>Reallocated_Sector_Ct<\/code> \u2013 setores remapeados<\/td>\n<td>N\u00e3o aplic\u00e1vel<\/td>\n<\/tr>\n<tr>\n<td><strong>Setores inst\u00e1veis<\/strong><\/td>\n<td><code>Current_Pending_Sector<\/code><\/td>\n<td>N\u00e3o aplic\u00e1vel<\/td>\n<\/tr>\n<tr>\n<td><strong>Erros de leitura<\/strong><\/td>\n<td><code>Raw_Read_Error_Rate<\/code><\/td>\n<td>Pode aparecer, mas n\u00e3o \u00e9 cr\u00edtico<\/td>\n<\/tr>\n<tr>\n<td><strong>Temperatura<\/strong><\/td>\n<td><code>Temperature_Celsius<\/code><\/td>\n<td><code>Temperature<\/code><\/td>\n<\/tr>\n<tr>\n<td><strong>Horas de uso<\/strong><\/td>\n<td><code>Power_On_Hours<\/code><\/td>\n<td><code>Power_On_Hours<\/code><\/td>\n<\/tr>\n<tr>\n<td><strong>Ciclos de energia<\/strong><\/td>\n<td><code>Start_Stop_Count<\/code><\/td>\n<td><code>Power_Cycle_Count<\/code><\/td>\n<\/tr>\n<tr>\n<td><strong>Vida \u00fatil<\/strong><\/td>\n<td>\u2014<\/td>\n<td><code>Wear_Leveling_Count<\/code>, <code>Media_Wearout_Indicator<\/code>, <code>Percentage Used<\/code> (NVMe)<\/td>\n<\/tr>\n<tr>\n<td><strong>Dados gravados<\/strong><\/td>\n<td>\u2014<\/td>\n<td><code>Total_LBAs_Written<\/code> (SATA) \/ <code>Data Units Written<\/code> (NVMe)<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>      <strong>Dica r\u00e1pida:<\/strong> em SSDs NVMe, acompanhe <code>Percentage Used<\/code>. Pr\u00f3ximo de 100%, planeje a substitui\u00e7\u00e3o.<br \/>\n  <\/section>\n<section>\n<h2 id=\"analise-pratica\">Diferen\u00e7as pr\u00e1ticas na an\u00e1lise<\/h2>\n<ul>\n<li><strong>HDDs:<\/strong> foco em <code>Reallocated_Sector_Ct<\/code> e <code>Current_Pending_Sector<\/code>. Aumento constante indica deteriora\u00e7\u00e3o f\u00edsica.<\/li>\n<li><strong>SSDs SATA:<\/strong> priorize indicadores de desgaste (<code>Wear_Leveling_Count<\/code>, <code>Media_Wearout_Indicator<\/code>) e dados gravados.<\/li>\n<li><strong>SSDs NVMe:<\/strong> <code>Percentage Used<\/code> oferece vis\u00e3o clara da vida \u00fatil consumida.<\/li>\n<\/ul>\n<\/section>\n<section>\n<h2 id=\"boas-praticas\">Boas pr\u00e1ticas de monitoramento<\/h2>\n<ol>\n<li><strong>Automatize verifica\u00e7\u00f5es peri\u00f3dicas:<\/strong> use <code>cron<\/code> para rodar o <code>smartctl<\/code> e registrar logs.<\/li>\n<li><strong>Integre com seu NOC:<\/strong> Zabbix, Nagios ou Prometheus para alertas e hist\u00f3rico.<\/li>\n<li><strong>Defina thresholds:<\/strong> ex.: alerta em HDD quando <code>Reallocated_Sector_Ct &gt; 10<\/code>; em SSD quando <code>Percentage Used &gt; 80%<\/code>.<\/li>\n<li><strong>Troca preventiva:<\/strong> discos s\u00e3o itens de desgaste; substitua antes da falha total.<\/li>\n<\/ol>\n<\/section>\n<section>\n<h2 id=\"conclusao\">Conclus\u00e3o<\/h2>\n<p>\n      O <code>smartctl<\/code> \u00e9 essencial para garantir <strong>seguran\u00e7a<\/strong>, <strong>disponibilidade<\/strong> e <strong>performance<\/strong>.<br \/>\n      Com monitoramento proativo, voc\u00ea reduz riscos e custos de indisponibilidade.\n    <\/p>\n<p>\n      Na <strong>Freestore IT Services<\/strong>, aplicamos monitoramento cont\u00ednuo e pr\u00e1ticas recomendadas para manter ambientes de clientes confi\u00e1veis e seguros.\n    <\/p>\n<p>\n      <a href=\"https:\/\/freestore.com.br\/contato\" target=\"_self\" rel=\"noopener\">Fale com a Freestore e implemente monitoramento proativo<\/a>\n    <\/p>\n<\/section>\n<\/article>\n","protected":false},"excerpt":{"rendered":"<p>Uma falha em HDDs ou SSDs pode causar indisponibilidade e perda de dados. Veja como usar o smartctl para prever falhas, acompanhar desgaste e manter sua infraestrutura confi\u00e1vel. O Linux oferece uma ferramenta poderosa e gratuita para monitorar discos: o smartctl, parte do pacote smartmontools. A seguir, voc\u00ea ver\u00e1 o essencial para instalar, executar testes [&hellip;]<\/p>\n","protected":false},"author":3,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[6],"tags":[],"class_list":["post-1131","post","type-post","status-publish","format-standard","hentry","category-ciber-seguranca"],"_links":{"self":[{"href":"https:\/\/freestore.com.br\/blog\/wp-json\/wp\/v2\/posts\/1131","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/freestore.com.br\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/freestore.com.br\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/freestore.com.br\/blog\/wp-json\/wp\/v2\/users\/3"}],"replies":[{"embeddable":true,"href":"https:\/\/freestore.com.br\/blog\/wp-json\/wp\/v2\/comments?post=1131"}],"version-history":[{"count":9,"href":"https:\/\/freestore.com.br\/blog\/wp-json\/wp\/v2\/posts\/1131\/revisions"}],"predecessor-version":[{"id":1140,"href":"https:\/\/freestore.com.br\/blog\/wp-json\/wp\/v2\/posts\/1131\/revisions\/1140"}],"wp:attachment":[{"href":"https:\/\/freestore.com.br\/blog\/wp-json\/wp\/v2\/media?parent=1131"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/freestore.com.br\/blog\/wp-json\/wp\/v2\/categories?post=1131"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/freestore.com.br\/blog\/wp-json\/wp\/v2\/tags?post=1131"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}