{"id":80836,"date":"2026-06-26T16:13:05","date_gmt":"2026-06-26T09:13:05","guid":{"rendered":"https:\/\/itsystems.vn\/?p=80836"},"modified":"2026-07-29T11:50:46","modified_gmt":"2026-07-29T04:50:46","slug":"what-is-raid-array-failure-and-why-businesses-cannot-ignore-it","status":"publish","type":"post","link":"https:\/\/itsystems.vn\/en\/what-is-raid-array-failure-and-why-businesses-cannot-ignore-it\/","title":{"rendered":"What is RAID Array Failure and Why Businesses Cannot Ignore It"},"content":{"rendered":"<p>In today&#8217;s business environment, <strong>RAID array failure<\/strong> is one of the most serious incidents that can occur with data storage systems. Just a small error in the RAID array can lead to operational disruption, loss of critical data, and significant financial damage. This article will help you understand what <strong>RAID array failure<\/strong> is, the causes of <strong>server RAID error<\/strong>, <strong>RAID failure<\/strong>, along with the most effective <strong>RAID recovery<\/strong> methods.<\/p>\n<p>RAID (Redundant Array of Independent Disks) is designed to increase speed and data safety by combining multiple physical hard drives into one logical unit. However, when the RAID array encounters problems, the entire system risks collapse. The more businesses rely on data, the more dangerous it becomes to overlook this risk.<\/p>\n<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_86 counter-hierarchy ez-toc-counter ez-toc-light-blue ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title\" style=\"cursor:inherit\">The content of the article<\/p>\n<span class=\"ez-toc-title-toggle\"><a href=\"#\" class=\"ez-toc-pull-right ez-toc-btn ez-toc-btn-xs ez-toc-btn-default ez-toc-toggle\" aria-label=\"Toggle Table of Content\"><span class=\"ez-toc-js-icon-con\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">Toggle<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #999;color:#999\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewBox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #999;color:#999\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewBox=\"0 0 24 24\" version=\"1.2\" baseProfile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/span><\/a><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1 ' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/itsystems.vn\/en\/what-is-raid-array-failure-and-why-businesses-cannot-ignore-it\/#What_is_RAID_Array_Failure_and_Why_Businesses_Cannot_Ignore_It\" >What is RAID Array Failure and Why Businesses Cannot Ignore It<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/itsystems.vn\/en\/what-is-raid-array-failure-and-why-businesses-cannot-ignore-it\/#Early_Signs_of_RAID_Array_Failure\" >Early Signs of RAID Array Failure<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/itsystems.vn\/en\/what-is-raid-array-failure-and-why-businesses-cannot-ignore-it\/#Common_Causes_of_RAID_Array_Failure\" >Common Causes of RAID Array Failure<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/itsystems.vn\/en\/what-is-raid-array-failure-and-why-businesses-cannot-ignore-it\/#1_Hardware_Failure_of_Hard_Drives_and_RAID_Controller\" >1. Hardware Failure of Hard Drives and RAID Controller<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/itsystems.vn\/en\/what-is-raid-array-failure-and-why-businesses-cannot-ignore-it\/#2_Sudden_Power_Loss_and_Power_Supply_Problems\" >2. Sudden Power Loss and Power Supply Problems<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/itsystems.vn\/en\/what-is-raid-array-failure-and-why-businesses-cannot-ignore-it\/#3_Firmware_Driver_Errors_and_Incompatible_Updates\" >3. Firmware, Driver Errors and Incompatible Updates<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"https:\/\/itsystems.vn\/en\/what-is-raid-array-failure-and-why-businesses-cannot-ignore-it\/#4_Lack_of_Regular_Maintenance_and_Monitoring\" >4. Lack of Regular Maintenance and Monitoring<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-8\" href=\"https:\/\/itsystems.vn\/en\/what-is-raid-array-failure-and-why-businesses-cannot-ignore-it\/#Guide_to_Safely_Repair_and_Recover_RAID_Array_Failure\" >Guide to Safely Repair and Recover RAID Array Failure<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-9\" href=\"https:\/\/itsystems.vn\/en\/what-is-raid-array-failure-and-why-businesses-cannot-ignore-it\/#Why_Businesses_Cannot_Ignore_the_Risk_of_RAID_Array_Failure\" >Why Businesses Cannot Ignore the Risk of RAID Array Failure<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-10\" href=\"https:\/\/itsystems.vn\/en\/what-is-raid-array-failure-and-why-businesses-cannot-ignore-it\/#Conclusion\" >Conclusion<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-11\" href=\"https:\/\/itsystems.vn\/en\/what-is-raid-array-failure-and-why-businesses-cannot-ignore-it\/#Related_services_from_IT_Systems\" >Related services from IT Systems<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-12\" href=\"https:\/\/itsystems.vn\/en\/what-is-raid-array-failure-and-why-businesses-cannot-ignore-it\/#FAQ\" >FAQ<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-13\" href=\"https:\/\/itsystems.vn\/en\/what-is-raid-array-failure-and-why-businesses-cannot-ignore-it\/#When_should_a_business_ask_IT_Systems_for_support\" >When should a business ask IT Systems for support?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-14\" href=\"https:\/\/itsystems.vn\/en\/what-is-raid-array-failure-and-why-businesses-cannot-ignore-it\/#Can_IT_Systems_help_review_the_current_environment_before_proposing_a_solution\" >Can IT Systems help review the current environment before proposing a solution?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-15\" href=\"https:\/\/itsystems.vn\/en\/what-is-raid-array-failure-and-why-businesses-cannot-ignore-it\/#Does_this_topic_connect_to_ongoing_IT_operations\" >Does this topic connect to ongoing IT operations?<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-16\" href=\"https:\/\/itsystems.vn\/en\/what-is-raid-array-failure-and-why-businesses-cannot-ignore-it\/#Need_help_applying_this_to_your_business\" >Need help applying this to your business?<\/a><\/li><\/ul><\/nav><\/div>\n<h2><span class=\"ez-toc-section\" id=\"What_is_RAID_Array_Failure_and_Why_Businesses_Cannot_Ignore_It\"><\/span>What is RAID Array Failure and Why Businesses Cannot Ignore It<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><strong>RAID array failure<\/strong> occurs when one or more hard drives in the RAID array are no longer operating in sync, resulting in loss of read\/write capability or complete inability to access data. Depending on the RAID level (RAID 0, 1, 5, 6, 10&#8230;), the severity will differ.<\/p>\n<p>With RAID 0, a single drive failure can put all data at risk of total loss. While RAID 5 or RAID 6 offer better fault tolerance, they still have limits. When <strong>RAID failure<\/strong> occurs on an enterprise server, the system may automatically switch to degraded mode, performance drops dramatically, and the risk of data loss increases sharply if not addressed immediately.<\/p>\n<p>Businesses often face this risk when running critical applications such as databases, file servers, virtualization systems, or email servers. A single <strong>server RAID error<\/strong> can prevent staff from working, block customer access to services, and even lead to lost contracts or breaches of data security regulations.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Early_Signs_of_RAID_Array_Failure\"><\/span>Early Signs of RAID Array Failure<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Early detection of <strong>RAID array failure<\/strong> helps limit damage. Here are the most common symptoms:<\/p>\n<ul>\n<li>Server error LEDs on hard drives (usually blinking red or amber).<\/li>\n<li>The system automatically starts RAID rebuild but the process hangs or reports errors.<\/li>\n<li>Server performance drops sharply, applications run slowly or experience frequent lag.<\/li>\n<li>Error messages appear in Event Viewer (Windows) or system logs (Linux) related to the RAID controller.<\/li>\n<li>Unable to access certain data partitions or the entire RAID volume disappears.<\/li>\n<li>Hard drives produce unusual noises (clicking sound) &#8211; a sign of mechanical failure.<\/li>\n<\/ul>\n<p>If you are experiencing any of these signs, your server is likely suffering from <strong>RAID failure<\/strong>. At this point, stop all new write operations to avoid making the situation worse.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Common_Causes_of_RAID_Array_Failure\"><\/span>Common Causes of RAID Array Failure<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Understanding the root causes helps businesses prevent them effectively. Here are the main reasons that lead to <strong>RAID array failure<\/strong>:<\/p>\n<h3><span class=\"ez-toc-section\" id=\"1_Hardware_Failure_of_Hard_Drives_and_RAID_Controller\"><\/span>1. Hardware Failure of Hard Drives and RAID Controller<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Hard drives have a limited lifespan. After 3-5 years of continuous operation, the failure rate increases significantly. The RAID controller can also fail due to overheating, unstable power supply, or outdated firmware. When the controller fails, the entire RAID array risks being misidentified.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"2_Sudden_Power_Loss_and_Power_Supply_Problems\"><\/span>2. Sudden Power Loss and Power Supply Problems<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Businesses that do not use quality UPS or backup power systems often encounter <strong>server RAID error<\/strong> after power outages. Interrupted write processes can corrupt the partition table or RAID metadata.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"3_Firmware_Driver_Errors_and_Incompatible_Updates\"><\/span>3. Firmware, Driver Errors and Incompatible Updates<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Updating BIOS, RAID firmware, or installing incompatible drivers can cause the array to enter a degraded state or fail completely. Many cases of <strong>RAID failure<\/strong> originate from updating Windows Server or controller firmware without proper testing.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"4_Lack_of_Regular_Maintenance_and_Monitoring\"><\/span>4. Lack of Regular Maintenance and Monitoring<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Many businesses do not monitor drive health via SMART tools or regularly check RAID logs. When one drive begins to degrade, the system may continue operating until a second drive fails &#8211; at which point <strong>RAID recovery<\/strong> becomes extremely difficult.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Guide_to_Safely_Repair_and_Recover_RAID_Array_Failure\"><\/span>Guide to Safely Repair and Recover RAID Array Failure<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Performing <strong>RAID recovery<\/strong> requires specialized knowledge and proper tools. Below is a basic procedure IT administrators can reference:<\/p>\n<p>First, disconnect power and back up any accessible data. Then check the RAID status using the controller manufacturer&#8217;s management software (Dell PERC, HP Smart Array, LSI MegaRAID&#8230;).<\/p>\n<p>If only one drive has failed in RAID 5 or RAID 6, replace it and initiate the rebuild process. However, if multiple drives fail simultaneously or metadata is corrupted, specialized software such as TestDisk, R-Studio, or enterprise-grade recovery tools are required.<\/p>\n<p>If the RAID controller has completely failed, it must be replaced with an identical model and firmware version to read the array. Even a small mismatch can make data unrecoverable.<\/p>\n<p><strong>Important Note:<\/strong> Do not attempt recovery yourself if you lack experience. Every incorrect action can permanently reduce the chances of successful <strong>RAID recovery<\/strong>. This is the time to engage professional <a href=\"https:\/\/itsystems.vn\/en\/it-services-for-businesses\/it-support-services\/\">IT Support services<\/a> for timely and safe assistance.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Why_Businesses_Cannot_Ignore_the_Risk_of_RAID_Array_Failure\"><\/span>Why Businesses Cannot Ignore the Risk of RAID Array Failure<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><strong>RAID array failure<\/strong> is not merely a technical issue but a serious business risk. Data is the most valuable asset for most modern enterprises. One hour of system downtime can cost tens to hundreds of thousands of dollars depending on scale.<\/p>\n<p>Moreover, recovery from <strong>server RAID error<\/strong> is often expensive and time-consuming. Many businesses must suspend operations for days while waiting for data recovery by specialized providers. Customers and partners may switch to competitors if service becomes unreliable.<\/p>\n<p>A sustainable solution is to build an enterprise-grade storage system with 24\/7 monitoring, 3-2-1 backup strategy (3 copies, 2 media types, 1 offsite copy), and an experienced IT team. Investing in prevention is far more cost-effective than dealing with the consequences after a disaster.<\/p>\n<p>If your business uses RAID servers but lacks professional monitoring and maintenance procedures, consider partnering with a reputable <a href=\"https:\/\/itsystems.vn\/en\/it-helpdesk-service\/\">IT Helpdesk service<\/a> for comprehensive support from consultation and implementation to emergency incident response.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Conclusion\"><\/span>Conclusion<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><strong>RAID array failure<\/strong> is an incident that can occur at any time but can be fully controlled if businesses have proper strategies in place. Understanding the causes, recognizing early warning signs, and knowing how to respond or seek professional help will protect your data and ensure business continuity.<\/p>\n<p>Don&#8217;t wait until <strong>RAID failure<\/strong> occurs to take action. Check your RAID system today, update firmware, implement monitoring, and establish a reliable backup plan. Thorough preparation is the best way for businesses to avoid unnecessary risks from <strong>server RAID error<\/strong>.<br \/>\n<!-- its-deep-aio-en-related-2026-07-27 --><\/p>\n<section class=\"its-deep-aio-related\" aria-label=\"Related IT Systems services\">\n<h2><span class=\"ez-toc-section\" id=\"Related_services_from_IT_Systems\"><\/span>Related services from IT Systems<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>If your team is dealing with this issue in a live business environment, these services can help you move from diagnosis to a stable operating process.<\/p>\n<ul>\n<li><a href=\"https:\/\/itsystems.vn\/en\/microsoft-business-licensing\/microsoft-windows-licensing\/\">Windows licensing for business<\/a><\/li>\n<li><a href=\"https:\/\/itsystems.vn\/en\/microsoft-business-licensing\/windows-license-pricing\/\">Windows license pricing<\/a><\/li>\n<li><a href=\"https:\/\/itsystems.vn\/en\/it-services-for-businesses\/it-support-services\/\">IT support services<\/a><\/li>\n<\/ul>\n<\/section>\n<p><!-- its-deep-aio-en-faq-2026-07-27 --><\/p>\n<section class=\"its-deep-aio-faq\" aria-label=\"Frequently asked questions\">\n<h2><span class=\"ez-toc-section\" id=\"FAQ\"><\/span>FAQ<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<h3><span class=\"ez-toc-section\" id=\"When_should_a_business_ask_IT_Systems_for_support\"><\/span>When should a business ask IT Systems for support?<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Ask for support when the issue affects users, business data, security, licensing compliance, service availability or daily operations. A short technical review often prevents repeated incidents and hidden costs.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Can_IT_Systems_help_review_the_current_environment_before_proposing_a_solution\"><\/span>Can IT Systems help review the current environment before proposing a solution?<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Yes. IT Systems can review the current setup, identify risks, map the issue to the right service scope and recommend a practical next step for your business.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Does_this_topic_connect_to_ongoing_IT_operations\"><\/span>Does this topic connect to ongoing IT operations?<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>In most cases, yes. Problems around software, cloud, endpoint, network, backup or security should be connected to a broader IT operations plan instead of being handled as isolated incidents.<\/p>\n<\/section>\n<p><!-- its-deep-aio-en-cta-2026-07-27 --><\/p>\n<section class=\"its-deep-aio-cta\" aria-label=\"Contact IT Systems\">\n<h2><span class=\"ez-toc-section\" id=\"Need_help_applying_this_to_your_business\"><\/span>Need help applying this to your business?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>IT Systems Vietnam can help assess the issue, recommend the right service path and support implementation for your team.<\/p>\n<p><a class=\"button\" href=\"https:\/\/itsystems.vn\/en\/contact-it-systems-vietnam\/\">Contact IT Systems<\/a> <a class=\"button\" href=\"https:\/\/itsystems.vn\/en\/it-services-for-businesses\/it-support-services\/\">View IT support services<\/a><\/p>\n<\/section>\n","protected":false},"excerpt":{"rendered":"<p>In today&#8217;s business environment, RAID array failure is one of the most serious incidents that can occur with data storage systems. Just a small error in the RAID array can lead to operational disruption, loss of critical data, and significant financial damage. This article will help you understand what RAID array failure is, the causes [&hellip;]<\/p>\n","protected":false},"author":54,"featured_media":80834,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"rank_math_focus_keyword":"RAID array failure, server RAID error, RAID failure, RAID recovery ","rank_math_title":"","rank_math_description":"What is RAID array failure? Learn the causes of server RAID error, RAID failure, along with safe and effective RAID recovery guidance. Businesses cannot ignore this serious risk of data loss.","rank_math_robots":"","rank_math_canonical_url":"","rank_math_schema":"","footnotes":""},"categories":[2144],"tags":[],"class_list":["post-80836","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-it-guide"],"wpml_current_locale":"en_US","wpml_translations":{"vi_VN":{"locale":"vi_VN","id":80833,"slug":"raid-array-hong-la-gi-va-tai-sao-doanh-nghiep-khong-the-bo-qua","post_title":"RAID array h\u1ecfng l\u00e0 g\u00ec v\u00e0 t\u1ea1i sao doanh nghi\u1ec7p kh\u00f4ng th\u1ec3 b\u1ecf qua","href":"https:\/\/itsystems.vn\/raid-array-hong-la-gi-va-tai-sao-doanh-nghiep-khong-the-bo-qua\/"}},"_links":{"self":[{"href":"https:\/\/itsystems.vn\/en\/wp-json\/wp\/v2\/posts\/80836","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/itsystems.vn\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/itsystems.vn\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/itsystems.vn\/en\/wp-json\/wp\/v2\/users\/54"}],"replies":[{"embeddable":true,"href":"https:\/\/itsystems.vn\/en\/wp-json\/wp\/v2\/comments?post=80836"}],"version-history":[{"count":4,"href":"https:\/\/itsystems.vn\/en\/wp-json\/wp\/v2\/posts\/80836\/revisions"}],"predecessor-version":[{"id":86222,"href":"https:\/\/itsystems.vn\/en\/wp-json\/wp\/v2\/posts\/80836\/revisions\/86222"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/itsystems.vn\/en\/wp-json\/wp\/v2\/media\/80834"}],"wp:attachment":[{"href":"https:\/\/itsystems.vn\/en\/wp-json\/wp\/v2\/media?parent=80836"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/itsystems.vn\/en\/wp-json\/wp\/v2\/categories?post=80836"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/itsystems.vn\/en\/wp-json\/wp\/v2\/tags?post=80836"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}