{"id":531252,"date":"2024-11-25T13:56:00","date_gmt":"2024-11-25T18:56:00","guid":{"rendered":"https:\/\/www.commvault.com\/learn\/3-2-1-backup-rule"},"modified":"2024-12-18T04:13:47","modified_gmt":"2024-12-18T09:13:47","slug":"3-2-1-backup-rule","status":"publish","type":"page","link":"https:\/\/www.commvault.com\/learn\/3-2-1-backup-rule","title":{"rendered":"3-2-1 Backup Rule"},"content":{"rendered":"<div class=\"style-side-image wp-block-commvault-v2-hero\">\n\t<div class=\"wp-block-commvault-v2-hero__container\">\n\t\t\t\t\t<div class=\"wp-block-commvault-v2-hero__breadcrumbs\">\n\t\t\t\t<ul class=\"new-breadcrumbs\"><li><a href=\"https:\/\/www.commvault.com\">Home<\/a><\/li> <svg width=\"12\" height=\"13\" viewBox=\"0 0 12 13\" fill=\"none\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\">\n\t<path d=\"M1 2.5L5 6.5L1 10.5M7 2.5L11 6.5L7 10.5\" stroke=\"currentcolor\" stroke-width=\"1.2\"\/><\/svg> <li><a href=\"https:\/\/www.commvault.com\/learn\">Learn<\/a><\/li> <svg width=\"12\" height=\"13\" viewBox=\"0 0 12 13\" fill=\"none\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\">\n\t<path d=\"M1 2.5L5 6.5L1 10.5M7 2.5L11 6.5L7 10.5\" stroke=\"currentcolor\" stroke-width=\"1.2\"\/><\/svg> <li>3-2-1 Backup Rule<\/li><\/ul>\t\t\t<\/div>\n\t\t\n\t\t\n\t\t\n\t\t<h1 class=\"title text-heading-l text-md-heading-l text-lg-heading-xxl text-xl-heading-xxxl\">\n\t\t\tWhat Is the 3-2-1 Backup Rule?&nbsp;\t\t<\/h1>\n\n\t\t<p class=\"subheading text-body-m text-xl-body-l\">\n\t\t\tDiscover the 3-2-1 backup rule, and how it can be used to protect your company from data loss.\t\t<\/p>\n\n\t\t<div class=\"wp-block-commvault-v2-hero__cta-wrapper scalable-cta-button\">\n\t\t\t\n\n<div class=\"is-style-primary wp-block-commvault-v2-custom-button\"\t\t>\n\n\t\n\t\t<a\n\t\t\tclass=\"cmvlt-2-custom-button btn-md text-body-l font-medium \"\n\t\t\thref=\"\/request-demo\"\n\t\t\taria-label=\"Request demo\"\n\t\t\ttarget=\"_blank\"\n\t\t>\n\n\t\t\t\t\t\t\t<span class=\"font-medium\">\n\t\t\t\t\tRequest demo\t\t\t\t<\/span>\n\t\t\t\t<svg width=\"17\" height=\"18\" viewBox=\"0 0 17 18\" fill=\"none\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\">\n\t\t\t\t\t<path fill-rule=\"evenodd\" clip-rule=\"evenodd\" d=\"M12.8788 8.00008L7.08586 2.20718L8.50008 0.792969L16.7072 9.00008L8.50008 17.2072L7.08586 15.793L12.8788 10.0001H0.292969V8.00008H12.8788Z\" fill=\"currentcolor\"\/>\n\t\t\t\t<\/svg>\n\t\t\t\t\t<\/a>\n\t<\/div>\n\n\t\t<\/div>\n\t<\/div>\n\t\t\t<div class=\"wp-block-commvault-v2-hero__side-image\">\n\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"819\" src=\"https:\/\/www.commvault.com\/wp-content\/uploads\/2024\/10\/Benefit_M365-Backup_Optimized-Performance_1088x870.jpg?quality=80\" class=\"wp-block-commvault-v2-hero__image\" alt=\"\" srcset=\"https:\/\/www.commvault.com\/wp-content\/uploads\/2024\/10\/Benefit_M365-Backup_Optimized-Performance_1088x870.jpg 1088w, https:\/\/www.commvault.com\/wp-content\/uploads\/2024\/10\/Benefit_M365-Backup_Optimized-Performance_1088x870.jpg?resize=800,640 800w, https:\/\/www.commvault.com\/wp-content\/uploads\/2024\/10\/Benefit_M365-Backup_Optimized-Performance_1088x870.jpg?resize=768,614 768w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/>\t\t\t\t\t<\/div>\n\t\t\t<\/div>\n\n\n<div class=\"alignfull sticky wp-block-commvault-v2-page-navigation\">\n\t<div class=\"custom-container\">\n\t\t<div class=\"nav-wrapper\">\n\t\t\t<div class=\"left-nav\">\n\t\t\t\t<div class=\"tab-menu\">\n\t\t\t\t\t<span>3-2-1 Backup Rule<\/span>\n\t\t\t\t\t<button class=\"toggle\">\n\t\t\t\t\t\t<svg width=\"12\" height=\"8\" viewBox=\"0 0 12 8\" fill=\"none\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\">\n\t\t\t\t\t\t\t<path d=\"M11 1.5L6 6.5L1 1.5\" stroke=\"currentColor\" stroke-width=\"1.5\"\/>\n\t\t\t\t\t\t<\/svg>\n\t\t\t\t\t<\/button>\n\t\t\t\t<\/div>\n\t\t\t\t<ul class=\"wp-block-commvault-v2-page-navigation__ul\" aria-label=\"Page navigation\" =\"true\" role=\"navigation\">\n\t\t\t\t\t\t\t\t\t\t\n<li class=\"wp-block-commvault-v2-page-navigation-item\">\n\t<a href=\"#Overview\" target=\"_self\" class=\"navigation-link \">\n\t\t<span>Overview<\/span>\n\t<\/a>\n<\/li>\n\n\n\n<li class=\"wp-block-commvault-v2-page-navigation-item\">\n\t<a href=\"#Definition\" target=\"_self\" class=\"navigation-link \">\n\t\t<span>Definition<\/span>\n\t<\/a>\n<\/li>\n\n\n\n<li class=\"wp-block-commvault-v2-page-navigation-item\">\n\t<a href=\"#Implementation\" target=\"_self\" class=\"navigation-link \">\n\t\t<span>Implementation<\/span>\n\t<\/a>\n<\/li>\n\n\n\n<li class=\"wp-block-commvault-v2-page-navigation-item\">\n\t<a href=\"#Challenges\" target=\"_self\" class=\"navigation-link \">\n\t\t<span>Challenges<\/span>\n\t<\/a>\n<\/li>\n\n\n\n<li class=\"wp-block-commvault-v2-page-navigation-item\">\n\t<a href=\"#Considerations\" target=\"_self\" class=\"navigation-link \">\n\t\t<span>Considerations<\/span>\n\t<\/a>\n<\/li>\n\n\n\n<li class=\"wp-block-commvault-v2-page-navigation-item\">\n\t<a href=\"#Related-Terms\" target=\"_self\" class=\"navigation-link \">\n\t\t<span>Related Terms<\/span>\n\t<\/a>\n<\/li>\n\n\n\n<li class=\"wp-block-commvault-v2-page-navigation-item\">\n\t<a href=\"#resources\" target=\"_self\" class=\"navigation-link \">\n\t\t<span>Resources<\/span>\n\t<\/a>\n<\/li>\n\n\n\t\t\t\t<\/ul>\n\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t<\/div>\n<\/div>\n\n\n\n<div class=\"wp-block-commvault-v2-section-header\" id=\"Overview\">\n\t\n\t<div class=\"section-header-inner-wrapper \">\n\t\t<div class=\"section-header__content\">\n\t\t\t\t\t\t\t<h5 class=\"eyebrow text-eyebrow-s text-md-eyebrow-m\">\n\t\t\t\t\tOverview\t\t\t\t<\/h5>\n\t\t\t\t\t\t\t\t\t\t<h2 class=\"section__title text-heading-l text-sm-heading-xl text-md-heading-xxl text-lg-heading-xxxl mt-0 mb-6 root\">\n\t\t\t\t\t\tThe golden rule of backup, how to implement it &ndash; and why 3-2-1 backups may no longer be enough\t\t\t\t<\/h2>\n\t\t\t\n\t\t\t\t\t\t\t<p class=\"section__description text-body-s mb-0 text-md-body-m text-lg-body-l\">\n\t\t\t\t\tThe 3-2-1 backup rule is a cornerstone of modern data protection and digital resilience. Facing an intensifying threat landscape, organizations rely on the 3-2-1 rule so that a clean copy of critical data will be available in the event of a cyberattack, natural disaster, or hardware failure. By storing multiple copies of backups on multiple devices in multiple locations, IT teams can <a href=\"https:\/\/www.commvault.com\/blogs\/five-best-practices-for-ransomware-readiness\" target=\"_blank\" rel=\"noreferrer noopener\">prevent even large-scale cyberattacks<\/a> or catastrophes from bringing business operations to a halt.&nbsp;<br>&nbsp;<br>Let&rsquo;s explain the 3-2-1 backup rule and how to implement it, examine a few common challenges and misconceptions, and explore new approaches to enhance its effectiveness.&nbsp;&nbsp;\t\t\t\t<\/p>\n\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n<\/div>\n\n\n\n<div class=\"wp-block-commvault-v2-section-header\" id=\"Definition\">\n\t\n\t<div class=\"section-header-inner-wrapper \">\n\t\t<div class=\"section-header__content\">\n\t\t\t\t\t\t\t<h5 class=\"eyebrow text-eyebrow-s text-md-eyebrow-m\">\n\t\t\t\t\tdefinition\t\t\t\t<\/h5>\n\t\t\t\t\t\t\t\t\t\t<h2 class=\"section__title text-heading-l text-sm-heading-xl text-md-heading-xxl text-lg-heading-xxxl mt-0 mb-6 root\">\n\t\t\t\t\t\tUnderstanding the 3-2-1 Backup Rule\t\t\t\t<\/h2>\n\t\t\t\n\t\t\t\t\t\t\t<p class=\"section__description text-body-s mb-0 text-md-body-m text-lg-body-l\">\n\t\t\t\t\tThe 3-2-1 backup rule is a widely recommended best practice to enable data reliability and protection in modern IT environments. First conceived of by Peter Krogh, this simple yet effective approach calls for:&nbsp;<br>&bull; 3 copies of data&nbsp;<br>&bull; On 2 different types of media&nbsp;<br>&bull; With 1 copy stored off-site&nbsp;<br>&nbsp;<br>The reasoning for the 3-2-1 rule is easy to understand. When your business depends on data &ndash; as every modern business does &ndash; you can&rsquo;t afford to take chances with its availability and integrity. That means eliminating the vulnerability that comes with single points of failure. Neglecting to back up your data would be madness; that&rsquo;s just common sense. But how can you be sure that backup will be recoverable if it&rsquo;s needed? What if the same incident that takes down your primary data store affects your backups as well?&nbsp;&nbsp;<br>&nbsp;<br>With that in mind, we can see why each of the 3-2-1 rule&rsquo;s components is essential.<br><br><strong>1. Keep at least 3 copies of your data<\/strong> &ndash; Devices fail; humans make mistakes; ransomware gangs increase the pressure on victims by targeting their backups as well. Having multiple copies, including the original data and two or more backups, reduces the risk of total data loss if one or two become inaccessible or corrupted.&nbsp;&nbsp;<br><br><strong>2. Store the copies on 2 different types of storage media<\/strong> &ndash; Different types of storage have different vulnerabilities and failure modes. By diversifying your backup storage media across a combination of internal hard drives, external hard drives, network-attached storage (NAS), and cloud storage, you can lessen the likelihood of all your copies being affected by the same type of failure.&nbsp;<br><br><strong>3. Keep 1 copy off-site<\/strong> &ndash; Major disasters like fires or floods potentially can destroy all the data in a location, primary and backup alike. Storing one backup in an entirely different place &ndash; a cloud provider&rsquo;s data center, for example &ndash; can keep it safe and recoverable even when the worst happens.&nbsp;&nbsp;\t\t\t\t<\/p>\n\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n<\/div>\n\n\n\n<div class=\"wp-block-commvault-v2-section-header\" id=\"Implementation\">\n\t\n\t<div class=\"section-header-inner-wrapper \">\n\t\t<div class=\"section-header__content\">\n\t\t\t\t\t\t\t<h5 class=\"eyebrow text-eyebrow-s text-md-eyebrow-m\">\n\t\t\t\t\tImplementation\t\t\t\t<\/h5>\n\t\t\t\t\t\t\t\t\t\t<h2 class=\"section__title text-heading-l text-sm-heading-xl text-md-heading-xxl text-lg-heading-xxxl mt-0 mb-6 root\">\n\t\t\t\t\t\tHow to Implement a 3-2-1 Backup Plan&nbsp;\t\t\t\t<\/h2>\n\t\t\t\n\t\t\t\t\t\t\t<p class=\"section__description text-body-s mb-0 text-md-body-m text-lg-body-l\">\n\t\t\t\t\tAs with every element of continuous business planning, the key to an effective 3-2-1 backup strategy is meticulous preparation, consistent execution, and continuous verification. Here&rsquo;s a step-by-step approach so that you&rsquo;ll always have a copy of your business-critical data available when you need it.&nbsp;&nbsp;<br><br><strong>1. Assess your current data<\/strong> &ndash; Begin by identifying the data that needs protection. This includes customer information, financial records, intellectual property, and operational data. You also may want to consider retention policies &ndash; the length of time different types of data should be retained to meet business needs and regulatory requirements.&nbsp;&nbsp;<br><br><strong>2. Choose backup solutions<\/strong> &ndash; Most modern hardware and software backup solutions can support the 3-2-1 rule, though some may do so more easily than others. Make sure the solution you use makes it simple to maintain, automate, and recover backups across different media and locations.&nbsp;<br><br><strong>3. Set up your primary backup<\/strong> &ndash; The primary backup copy typically resides on-site for quick access, often using a NAS device or dedicated backup server.&nbsp;&nbsp;<br><br><strong>4. Set up your secondary backup<\/strong> &ndash; Create a second copy using a different storage medium such as an external hard drive or separate backup appliance.&nbsp;<br><br><strong>5. Set up your off-site backup<\/strong> &ndash; Companies usually turn to the cloud to store this copy, though smaller companies have been known to store backups in the trunk of a car. Wherever it&rsquo;s stored, make sure it&rsquo;s secure and easily accessible when needed. Your test and verification processes (see below) should include the time needed to fully recover remote backups via wide-area network (WAN) or internet.&nbsp;&nbsp;<br><br><strong>6. Encrypt all your backups<\/strong> &ndash; Backup data can be as attractive and valuable to cybercriminals as your production environment. Make sure you encrypt all your copies &ndash; primary, secondary, and especially off-site.&nbsp;<br><br><strong>7. Automate your backup processes<\/strong> &ndash; An automated backup schedule is essential to enable regular, consistent backups.&nbsp;<br><br><strong>8. Test and verify<\/strong> &ndash; Take nothing for granted. Regularly test your backup and recovery process to verify that you can restore data successfully from all your backup locations within an acceptable amount of time.&nbsp;&nbsp;<br><br><strong>9. Monitor and maintain<\/strong> &ndash; Continuously monitor your backup processes and address any failures promptly.&nbsp;&nbsp;<br><br><strong>10. Document your procedures<\/strong> &ndash; A disaster is no time for learning on the job. Create comprehensive and clear documentation of your backup strategy, including recovery procedures, so people know what to do in an emergency.&nbsp;\t\t\t\t<\/p>\n\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n<\/div>\n\n\n\n<div class=\"wp-block-commvault-v2-section-header\" id=\"Challenges\">\n\t\n\t<div class=\"section-header-inner-wrapper \">\n\t\t<div class=\"section-header__content\">\n\t\t\t\t\t\t\t<h5 class=\"eyebrow text-eyebrow-s text-md-eyebrow-m\">\n\t\t\t\t\tChallenges \t\t\t\t<\/h5>\n\t\t\t\t\t\t\t\t\t\t<h2 class=\"section__title text-heading-l text-sm-heading-xl text-md-heading-xxl text-lg-heading-xxxl mt-0 mb-6 root\">\n\t\t\t\t\t\tCommon Challenges and Considerations for 3-2-1 Backups&nbsp;\t\t\t\t<\/h2>\n\t\t\t\n\t\t\t\t\t\t\t<p class=\"section__description text-body-s mb-0 text-md-body-m text-lg-body-l\">\n\t\t\t\t\tWhile 3-2-1 backups offer clear advantages for improving digital resilience, there are a few caveats to keep in mind.&nbsp;&nbsp;<br><br>&bull; <strong>Cost and Complexity&nbsp;<br><\/strong>Maintaining multiple copies of data across different storage media can get expensive, including not just storage hardware but also software licenses, maintenance, and staff overhead. Your off-site copy might incur significant costs for bandwidth and cloud resources. That can be an issue for smaller organizations with limited budgets. Coordinating backups, confirming consistency, and checking compatibility across different storage systems can be challenging as well.&nbsp;&nbsp;<br><br>&bull; <strong>Scalability<\/strong>&nbsp;&nbsp;<br>As your data grows, you&rsquo;ll need your backup infrastructure to keep pace &ndash; all three (or more) components of it. Larger data volumes also take longer to back up and restore, especially from off-site or cloud locations, making it harder to comply with service-level agreements (SLAs) for backup windows and recovery time objectives (RTOs). Remember: The longer it takes to complete a backup, the less up-to-date its data will be.&nbsp;&nbsp;<br><br>&bull; <strong>Security and Compliance&nbsp;&nbsp;<br><\/strong>Maintaining multiple copies of data in different ways, especially off-site, can multiply security concerns. Protecting your backups from unauthorized access, tampering, or attack is critically important to maintain their availability and integrity while preventing data theft. Depending on your industry, you also may need to confirm that all copies of your data comply with relevant regulations, adding complexity to the backup process.&nbsp;<br><br><strong>&bull; Integration Issues&nbsp;<br><\/strong>Organizations with legacy systems might struggle to implement modern backup solutions that support the 3-2-1 rule across their entire IT infrastructure. Companies also can face challenges integrating cloud services into existing backup workflows and making sure that the data is consistent between on-premises and cloud storage.&nbsp;<br>&nbsp;<br>To address these challenges, many organizations are moving toward more automated, cloud-integrated backup solutions designed to simplify management, improve scalability, and enhance security.&nbsp;&nbsp;\t\t\t\t<\/p>\n\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n<\/div>\n\n\n\n<div class=\"wp-block-commvault-v2-section-header\" id=\"Considerations\">\n\t\n\t<div class=\"section-header-inner-wrapper \">\n\t\t<div class=\"section-header__content\">\n\t\t\t\t\t\t\t<h5 class=\"eyebrow text-eyebrow-s text-md-eyebrow-m\">\n\t\t\t\t\tConsiderations\t\t\t\t<\/h5>\n\t\t\t\t\t\t\t\t\t\t<h2 class=\"section__title text-heading-l text-sm-heading-xl text-md-heading-xxl text-lg-heading-xxxl mt-0 mb-6 root\">\n\t\t\t\t\t\tWhy 3-2-1 Backups May No Longer Be Enough&nbsp;\t\t\t\t<\/h2>\n\t\t\t\n\t\t\t\t\t\t\t<p class=\"section__description text-body-s mb-0 text-md-body-m text-lg-body-l\">\n\t\t\t\t\tThe 3-2-1 strategy is the golden rule of backup &ndash; but that&rsquo;s not to say it&rsquo;s perfect. Evolving technologies, IT environments, and threats have led many organizations to consider a few updates.&nbsp;&nbsp;&nbsp;<br><br>&bull; <strong>Continuous data protection (CDP)<\/strong> &ndash; The 3-2-1 rule originally focused on static backup copies, but today&rsquo;s fast-paced business environments and constantly changing data call for a more dynamic approach. CDP systems capture changes in real-time, allowing for more granular recovery points and minimizing potential data loss. You don&rsquo;t necessarily have to use CDP across all three copies; just a single CDP backup for your primary data still will enhance your data protection strategy.&nbsp;&nbsp;<br><br>&bull; <strong>Multi-cloud (4-3-2) strategies<\/strong> &ndash; While the simplicity, accessibility, and scalability of the cloud have made it a popular choice for the &ldquo;1&rdquo; in the 3-2-1 rule, organizations can be leery of vendor lock-in. Some now opt to store two copies off-site using two different cloud providers. This can be a costly approach, but you&rsquo;ll never wish you had fewer backups available.&nbsp;&nbsp;<br><br><strong>&bull; Offline\/air-gapped\/immutable backups (3-2-1-1)<\/strong> &ndash; As evolving threats pose new dangers to data, you can&rsquo;t be too careful in protecting the safety of at least one backup. The 3-2-1-1 rule incorporates an additional copy that&rsquo;s either offline, air-gapped, or immutable so it can&rsquo;t be encrypted or corrupted by attackers. In a ransomware attack, that backup copy can be a lifesaver.&nbsp;&nbsp;<br><br>&bull; <strong>Zero errors (3-2-1-0 or 3-2-1-1-0) <\/strong>&ndash; More a practice than a technology, the zero in this model emphasizes the critical importance of error-free backups verified through continuous monitoring, automated integrity checks, and regular recoverability testing.&nbsp;&nbsp;<br>&nbsp;<br>While enhancements like these can provide greater data protection than standard 3-2-1 backups, the fundamental premise remains unchanged. <a href=\"https:\/\/www.commvault.com\/platform\/backup-and-recovery\" target=\"_blank\" rel=\"noreferrer noopener\">By building redundancy into every element of your backup and recovery strategy<\/a> &ndash; multiple copies, multiple storage types, multiple locations &ndash; you can help eliminate single points of error and have at least one backup available to restore. In a data-driven world, that can make the difference between continuous business and out-of-business.&nbsp;&nbsp;<br>&nbsp;\t\t\t\t<\/p>\n\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n<\/div>\n\n\n\n<div class=\"alignfull card-grid-aligncenter wp-block-commvault-v2-card-grid\" id=\"Related-Terms\">\n\t<div class=\"content container\">\n\t\t<div class=\"header\">\n\t\t\t<div class=\"header-text-wrapper\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t<h2 class=\"title text-heading-m text-md-heading-l text-lg-heading-xl\">\n\t\t\t\t\t\tRelated Terms\t\t\t\t\t<\/h2>\n\t\t\t\t\n\t\t\t\t\t\t\t<\/div>\n\n\t\t\t\t\t<\/div>\n\n\t\t<div class=\"grid columns-3\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t<div class=\"without-card-image wp-block-commvault-v2-analyst-report-card\">\n\t<div class=\"cmvlt-component-card cmvlt-component-card__analyst-report \" style=\"background-color: #F3F4FA\">\n\t<div class=\"analyst-report__container\">\n    \n          <h3 class=\"cmvlt-component-card__title text-left text-heading-xs text-md-heading-s text-xl-heading-m\">What is Ransomware Protection?<\/h3>\n    \n          <p class=\"cmvlt-component-card__description text-left text-body-s text-md-body-m \">Ransomware protection is the process of preventing the occurrence of a ransomware event, and\/or mitigating the risk of a successful attack.&nbsp;<br><a href=\"https:\/\/www.commvault.com\/glossary-library\/data-management-as-a-service-dmaas\"><\/a><\/p>\n    \n    \n        <div class=\"scalable-cta-button text-left\">\n      \n\n<div class=\"is-style-primary-alt wp-block-commvault-v2-custom-button\"\t\t>\n\n\t\n\t\t<a\n\t\t\tclass=\"cmvlt-2-custom-button btn-md text-body-l font-medium \"\n\t\t\thref=\"https:\/\/www.commvault.com\/learn\/ransomware-101\"\n\t\t\taria-label=\"Learn more\"\n\t\t\ttarget=\"_blank\"\n\t\t>\n\n\t\t\t\t\t\t\t<svg width=\"48\" height=\"48\" viewBox=\"0 0 48 48\" fill=\"none\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\">\n\t\t\t\t\t<path d=\"M48 24C48 37.2548 37.2548 48 24 48C10.7452 48 0 37.2548 0 24C0 10.7452 10.7452 0 24 0C37.2548 0 48 10.7452 48 24Z\" fill=\"black\"\/>\n\t\t\t\t\t<path fill-rule=\"evenodd\" clip-rule=\"evenodd\" d=\"M28.5858 23.0001L23.2929 17.7072L24.7071 16.293L32.4142 24.0001L24.7071 31.7072L23.2929 30.293L28.5858 25.0001H17V23.0001H28.5858Z\" fill=\"currentcolor\"\/>\n\t\t\t\t<\/svg>\n\n\t\t\t\t<span class=\"font-medium\">\n\t\t\t\t\tLearn more\t\t\t\t<\/span>\n\t\t\t\t\t<\/a>\n\t<\/div>\n\n    <\/div>\n      <\/div>\n<\/div>\n<\/div>\n\t\t\t\t\t\t\t\t\t\t<div class=\"without-card-image wp-block-commvault-v2-analyst-report-card\">\n\t<div class=\"cmvlt-component-card cmvlt-component-card__analyst-report \" style=\"background-color: #F3F4FA\">\n\t<div class=\"analyst-report__container\">\n    \n          <h3 class=\"cmvlt-component-card__title text-left text-heading-xs text-md-heading-s text-xl-heading-m\">What is Continuous Data Protection?&nbsp;<\/h3>\n    \n          <p class=\"cmvlt-component-card__description text-left text-body-s text-md-body-m \">Continuous data protection (CDP) empowers enterprise businesses today to have the confidence that their data can be recovered in the wake of cyberattacks, outages, natural disasters, or other failures.&nbsp;<br><a href=\"https:\/\/www.commvault.com\/glossary-library\/what-is-data-protection\"><\/a><\/p>\n    \n    \n        <div class=\"scalable-cta-button text-left\">\n      \n\n<div class=\"is-style-primary-alt wp-block-commvault-v2-custom-button\"\t\t>\n\n\t\n\t\t<a\n\t\t\tclass=\"cmvlt-2-custom-button btn-md text-body-l font-medium \"\n\t\t\thref=\"https:\/\/www.commvault.com\/learn\/continuous-data-protection\"\n\t\t\taria-label=\"Learn more\"\n\t\t\ttarget=\"_blank\"\n\t\t>\n\n\t\t\t\t\t\t\t<svg width=\"48\" height=\"48\" viewBox=\"0 0 48 48\" fill=\"none\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\">\n\t\t\t\t\t<path d=\"M48 24C48 37.2548 37.2548 48 24 48C10.7452 48 0 37.2548 0 24C0 10.7452 10.7452 0 24 0C37.2548 0 48 10.7452 48 24Z\" fill=\"black\"\/>\n\t\t\t\t\t<path fill-rule=\"evenodd\" clip-rule=\"evenodd\" d=\"M28.5858 23.0001L23.2929 17.7072L24.7071 16.293L32.4142 24.0001L24.7071 31.7072L23.2929 30.293L28.5858 25.0001H17V23.0001H28.5858Z\" fill=\"currentcolor\"\/>\n\t\t\t\t<\/svg>\n\n\t\t\t\t<span class=\"font-medium\">\n\t\t\t\t\tLearn more\t\t\t\t<\/span>\n\t\t\t\t\t<\/a>\n\t<\/div>\n\n    <\/div>\n      <\/div>\n<\/div>\n<\/div>\n\t\t\t\t\t\t\t\t\t\t<div class=\"without-card-image wp-block-commvault-v2-analyst-report-card\">\n\t<div class=\"cmvlt-component-card cmvlt-component-card__analyst-report \" style=\"background-color: #F3F4FA\">\n\t<div class=\"analyst-report__container\">\n    \n          <h3 class=\"cmvlt-component-card__title text-left text-heading-xs text-md-heading-s text-xl-heading-m\">What is an Immutable Backup?&nbsp;<\/h3>\n    \n          <p class=\"cmvlt-component-card__description text-left text-body-s text-md-body-m \">An immutable backup is a file that cannot be altered in any way, designed so the data remains unchanged by either bad actors or administrators.&nbsp;<br><a href=\"https:\/\/www.commvault.com\/glossary-library\/what-is-data-protection\"><\/a><\/p>\n    \n    \n        <div class=\"scalable-cta-button text-left\">\n      \n\n<div class=\"is-style-primary-alt wp-block-commvault-v2-custom-button\"\t\t>\n\n\t\n\t\t<a\n\t\t\tclass=\"cmvlt-2-custom-button btn-md text-body-l font-medium \"\n\t\t\thref=\"https:\/\/www.commvault.com\/learn\/immutable-backup\"\n\t\t\taria-label=\"Learn more\"\n\t\t\ttarget=\"_blank\"\n\t\t>\n\n\t\t\t\t\t\t\t<svg width=\"48\" height=\"48\" viewBox=\"0 0 48 48\" fill=\"none\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\">\n\t\t\t\t\t<path d=\"M48 24C48 37.2548 37.2548 48 24 48C10.7452 48 0 37.2548 0 24C0 10.7452 10.7452 0 24 0C37.2548 0 48 10.7452 48 24Z\" fill=\"black\"\/>\n\t\t\t\t\t<path fill-rule=\"evenodd\" clip-rule=\"evenodd\" d=\"M28.5858 23.0001L23.2929 17.7072L24.7071 16.293L32.4142 24.0001L24.7071 31.7072L23.2929 30.293L28.5858 25.0001H17V23.0001H28.5858Z\" fill=\"currentcolor\"\/>\n\t\t\t\t<\/svg>\n\n\t\t\t\t<span class=\"font-medium\">\n\t\t\t\t\tLearn more\t\t\t\t<\/span>\n\t\t\t\t\t<\/a>\n\t<\/div>\n\n    <\/div>\n      <\/div>\n<\/div>\n<\/div>\n\t\t\t\t\t\t\t\t\t<\/div>\n\t<\/div>\n<\/div>\n\n\n\n<div class=\"wp-block-commvault-v3-section-header-v3\" id=\"resources\">\n\t\n\t\n<div class=\"section__spacing\">\n\t<div class=\"section-header-inner-wrapper\">\n\t\t\n<div class=\"section-header__content text-box-component\">\n      <h5 class=\"eyebrow text-eyebrow-s\">\n      related resources    <\/h5>\n        <h2 class=\"section__title text-heading-l text-sm-heading-xl text-md-heading-xxl text-lg-heading-xxxl\">\n      Explore related resources    <\/h2>\n  \n  <\/div>\n\n<div class=\"commvault-v3-custom-buttons-component scalable-cta-button flex-shrink-0\">\n      <div class=\"commvault-v3-button flex-shrink-0 is-style-secondary-alt \"\n            >\n\n              <a\n          class=\"cmvlt-2-custom-button btn-md text-body-l font-medium js-open-modal\"\n          href=\"\/resources\"\n          aria-label=\"View all resources\"\n          target=\"_blank\"\n        >\n\n                      <svg width=\"49\" height=\"48\" viewBox=\"0 0 49 48\" fill=\"none\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\">\n              <path class=\"circle\" d=\"M47 24C47 36.7025 36.7025 47 24 47C11.2975 47 1 36.7025 1 24C1 11.2975 11.2975 1 24 1C36.7025 1 47 11.2975 47 24Z\" stroke=\"black\" stroke-width=\"2\"\/>\n              <path fill-rule=\"evenodd\" clip-rule=\"evenodd\" d=\"M28.5858 23.0001L23.2929 17.7072L24.7071 16.293L32.4142 24.0001L24.7071 31.7072L23.2929 30.293L28.5858 25.0001H17V23.0001H28.5858Z\" fill=\"black\"\/>\n            <\/svg>\n\n            <span class=\"font-medium\">\n              View all resources            <\/span>\n                  <\/a>\n          <\/div>\n  <\/div>\n\t<\/div>\n<\/div>\n\n\t<\/div>\n\n\n<div class=\"wp-block-commvault-v3-masonry-grid\">\n\t\n<div class=\"none wp-block-commvault-v3-layout-grid\">\n\t<div class=\"container\">\n\t\t<div class=\"grid-container \">\n\t\t\t\n<div class=\"col-lg-5 col-md-12 col-12 wp-block-commvault-v3-layout-grid-column\">\n\t\n<div class=\"wp-block-commvault-v2-customer-story\" id=\"related-resources\">\n\t\t\t\t\t<div class=\"cmvlt-component-card cmvlt-component-card__customer-story\" style=\"background-color: #FFF\">\n\t<div class=\"grid-container no-gap\">\n\t\t<div class=\"col-12 col-md-5\">\n\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"819\" src=\"https:\/\/www.commvault.com\/wp-content\/uploads\/2024\/11\/SolutionsPackages_CyberResilience_Benefit3_1088x870.jpg?quality=80\" class=\"cmvlt-component-card__image\" alt=\"\" srcset=\"https:\/\/www.commvault.com\/wp-content\/uploads\/2024\/11\/SolutionsPackages_CyberResilience_Benefit3_1088x870.jpg 1088w, https:\/\/www.commvault.com\/wp-content\/uploads\/2024\/11\/SolutionsPackages_CyberResilience_Benefit3_1088x870.jpg?resize=800,640 800w, https:\/\/www.commvault.com\/wp-content\/uploads\/2024\/11\/SolutionsPackages_CyberResilience_Benefit3_1088x870.jpg?resize=768,614 768w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/>\t\t\t\t<\/div>\n\t\t<div class=\"col-12 col-md-7 cmvlt-component-card__content \">\n\t\t\t<div class=\"header\">\n\t\t\t\t\t\t\t\t\t<p class=\"cmvlt-component-card__eyebrow eyebrow text-eyebrow-s text-md-eyebrow-m\">Blog<\/p>\n\t\t\t\t\t\t\t\t\t\t\t\t\t<h2 class=\"cmvlt-component-card__title text-heading-s text-md-heading-m text-lg-heading-l text-xl-heading-xl\">Five Best Practices for Ransomware Readiness&nbsp;<\/h2>\n\t\t\t\t\n\t\t\t\t\t\t\t\t\t<h2 class=\"cmvlt-component-card__description text-body-s text-body-m\">Commvault ransomware protection solutions are built on responsiveness, innovation, and rapid execution to help you stay one step ahead.<\/h2>\n\t\t\t\t\t\t\t<\/div>\n\n\t\t\t<div class=\"cmvlt-component-card__footer\">\n\t\t\t\t<div class=\"cmvlt-component-card__cta scalable-cta-button\">\n\t\t\t\t\t\n\t\t\t\t\t\n\n<div class=\"is-style-primary-alt wp-block-commvault-v2-custom-button\"\t\t>\n\n\t\n\t\t<a\n\t\t\tclass=\"cmvlt-2-custom-button btn-md text-body-l font-medium \"\n\t\t\thref=\"https:\/\/www.commvault.com\/blogs\/five-best-practices-for-ransomware-readiness\"\n\t\t\taria-label=\"Read more\"\n\t\t\ttarget=\"_blank\"\n\t\t>\n\n\t\t\t\t\t\t\t<svg width=\"48\" height=\"48\" viewBox=\"0 0 48 48\" fill=\"none\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\">\n\t\t\t\t\t<path d=\"M48 24C48 37.2548 37.2548 48 24 48C10.7452 48 0 37.2548 0 24C0 10.7452 10.7452 0 24 0C37.2548 0 48 10.7452 48 24Z\" fill=\"black\"\/>\n\t\t\t\t\t<path fill-rule=\"evenodd\" clip-rule=\"evenodd\" d=\"M28.5858 23.0001L23.2929 17.7072L24.7071 16.293L32.4142 24.0001L24.7071 31.7072L23.2929 30.293L28.5858 25.0001H17V23.0001H28.5858Z\" fill=\"currentcolor\"\/>\n\t\t\t\t<\/svg>\n\n\t\t\t\t<span class=\"font-medium\">\n\t\t\t\t\tRead more\t\t\t\t<\/span>\n\t\t\t\t\t<\/a>\n\t<\/div>\n\n\t\t\t\t<\/div>\n\t\t\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t<\/div>\n<\/div>\n\t\t\t<\/div>\n\n<\/div>\n\n\n<div class=\"col-lg-7 col-md-12 col-12 wp-block-commvault-v3-layout-grid-column\">\n\t\n<div class=\"wp-block-commvault-v2-customer-story\">\n\t\t\t\t\t<div class=\"cmvlt-component-card cmvlt-component-card__customer-story\" style=\"background-color: #FFF\">\n\t<div class=\"grid-container no-gap\">\n\t\t<div class=\"col-12 col-md-5\">\n\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"576\" src=\"https:\/\/www.commvault.com\/wp-content\/uploads\/2024\/11\/dd-cloud-data-protection.jpg?quality=80\" class=\"cmvlt-component-card__image\" alt=\"\" srcset=\"https:\/\/www.commvault.com\/wp-content\/uploads\/2024\/11\/dd-cloud-data-protection.jpg 1280w, https:\/\/www.commvault.com\/wp-content\/uploads\/2024\/11\/dd-cloud-data-protection.jpg?resize=800,450 800w, https:\/\/www.commvault.com\/wp-content\/uploads\/2024\/11\/dd-cloud-data-protection.jpg?resize=768,432 768w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/>\t\t\t\t<\/div>\n\t\t<div class=\"col-12 col-md-7 cmvlt-component-card__content \">\n\t\t\t<div class=\"header\">\n\t\t\t\t\t\t\t\t\t<p class=\"cmvlt-component-card__eyebrow eyebrow text-eyebrow-s text-md-eyebrow-m\">Solution Brief<\/p>\n\t\t\t\t\t\t\t\t\t\t\t\t\t<h2 class=\"cmvlt-component-card__title text-heading-s text-md-heading-m text-lg-heading-l text-xl-heading-xl\">Cyberthreat Protection with Resilience and Recovery <\/h2>\n\t\t\t\t\n\t\t\t\t\t\t\t\t\t<h2 class=\"cmvlt-component-card__description text-body-s text-body-m\">Developing a cyber-resiliency plan for your data.<br><a href=\"https:\/\/www.commvault.com\/gc\/cyber-recovery-readiness-report#get-report\"><\/a><\/h2>\n\t\t\t\t\t\t\t<\/div>\n\n\t\t\t<div class=\"cmvlt-component-card__footer\">\n\t\t\t\t<div class=\"cmvlt-component-card__cta scalable-cta-button\">\n\t\t\t\t\t\n\t\t\t\t\t\n\n<div class=\"is-style-primary-alt wp-block-commvault-v2-custom-button\"\t\t>\n\n\t\n\t\t<a\n\t\t\tclass=\"cmvlt-2-custom-button btn-md text-body-l font-medium \"\n\t\t\thref=\"https:\/\/www.commvault.com\/resources\/solution-brief\/commvault-cyber-threat-protection-and-recovery\"\n\t\t\taria-label=\"Read more\"\n\t\t\ttarget=\"_blank\"\n\t\t>\n\n\t\t\t\t\t\t\t<svg width=\"48\" height=\"48\" viewBox=\"0 0 48 48\" fill=\"none\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\">\n\t\t\t\t\t<path d=\"M48 24C48 37.2548 37.2548 48 24 48C10.7452 48 0 37.2548 0 24C0 10.7452 10.7452 0 24 0C37.2548 0 48 10.7452 48 24Z\" fill=\"black\"\/>\n\t\t\t\t\t<path fill-rule=\"evenodd\" clip-rule=\"evenodd\" d=\"M28.5858 23.0001L23.2929 17.7072L24.7071 16.293L32.4142 24.0001L24.7071 31.7072L23.2929 30.293L28.5858 25.0001H17V23.0001H28.5858Z\" fill=\"currentcolor\"\/>\n\t\t\t\t<\/svg>\n\n\t\t\t\t<span class=\"font-medium\">\n\t\t\t\t\tRead more\t\t\t\t<\/span>\n\t\t\t\t\t<\/a>\n\t<\/div>\n\n\t\t\t\t<\/div>\n\t\t\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t<\/div>\n<\/div>\n\t\t\t<\/div>\n\n\n<div class=\"wp-block-commvault-v2-customer-story\">\n\t\t\t\t\t<div class=\"cmvlt-component-card cmvlt-component-card__customer-story\" style=\"background-color: #FFF\">\n\t<div class=\"grid-container no-gap\">\n\t\t<div class=\"col-12 col-md-5\">\n\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"1024\" src=\"https:\/\/www.commvault.com\/wp-content\/uploads\/2024\/11\/CVT_Gartner_MQ_Image-square.png\" class=\"cmvlt-component-card__image\" alt=\"\" srcset=\"https:\/\/www.commvault.com\/wp-content\/uploads\/2024\/11\/CVT_Gartner_MQ_Image-square.png 1080w, https:\/\/www.commvault.com\/wp-content\/uploads\/2024\/11\/CVT_Gartner_MQ_Image-square.png?resize=300,300 300w, https:\/\/www.commvault.com\/wp-content\/uploads\/2024\/11\/CVT_Gartner_MQ_Image-square.png?resize=800,800 800w, https:\/\/www.commvault.com\/wp-content\/uploads\/2024\/11\/CVT_Gartner_MQ_Image-square.png?resize=768,768 768w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/>\t\t\t\t<\/div>\n\t\t<div class=\"col-12 col-md-7 cmvlt-component-card__content \">\n\t\t\t<div class=\"header\">\n\t\t\t\t\t\t\t\t\t<p class=\"cmvlt-component-card__eyebrow eyebrow text-eyebrow-s text-md-eyebrow-m\">Analyst Report<\/p>\n\t\t\t\t\t\t\t\t\t\t\t\t\t<h2 class=\"cmvlt-component-card__title text-heading-s text-md-heading-m text-lg-heading-l text-xl-heading-xl\">Gartner&reg; Magic Quadrant&trade;<\/h2>\n\t\t\t\t\n\t\t\t\t\t\t\t\t\t<h2 class=\"cmvlt-component-card__description text-body-s text-body-m\">For the 13th time in a row, Commvault has been named as a Leader in the Gartner<sup>&reg;<\/sup>&nbsp;Magic Quadrant&trade; for Enterprise Backup and Recovery Software Solutions. <br><a href=\"https:\/\/www.commvault.com\/gc\/itleaders#get-report\"><\/a><br><a href=\"https:\/\/www.commvault.com\/gc\/esg-technical-review-commvault-cleanroom-recovery#form\"><\/a><\/h2>\n\t\t\t\t\t\t\t<\/div>\n\n\t\t\t<div class=\"cmvlt-component-card__footer\">\n\t\t\t\t<div class=\"cmvlt-component-card__cta scalable-cta-button\">\n\t\t\t\t\t\n\t\t\t\t\t\n\n<div class=\"is-style-primary-alt wp-block-commvault-v2-custom-button\"\t\t>\n\n\t\n\t\t<a\n\t\t\tclass=\"cmvlt-2-custom-button btn-md text-body-l font-medium \"\n\t\t\thref=\"https:\/\/www.commvault.com\/gc\/itleaders\"\n\t\t\taria-label=\"Read more\"\n\t\t\ttarget=\"_blank\"\n\t\t>\n\n\t\t\t\t\t\t\t<svg width=\"48\" height=\"48\" viewBox=\"0 0 48 48\" fill=\"none\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\">\n\t\t\t\t\t<path d=\"M48 24C48 37.2548 37.2548 48 24 48C10.7452 48 0 37.2548 0 24C0 10.7452 10.7452 0 24 0C37.2548 0 48 10.7452 48 24Z\" fill=\"black\"\/>\n\t\t\t\t\t<path fill-rule=\"evenodd\" clip-rule=\"evenodd\" d=\"M28.5858 23.0001L23.2929 17.7072L24.7071 16.293L32.4142 24.0001L24.7071 31.7072L23.2929 30.293L28.5858 25.0001H17V23.0001H28.5858Z\" fill=\"currentcolor\"\/>\n\t\t\t\t<\/svg>\n\n\t\t\t\t<span class=\"font-medium\">\n\t\t\t\t\tRead more\t\t\t\t<\/span>\n\t\t\t\t\t<\/a>\n\t<\/div>\n\n\t\t\t\t<\/div>\n\t\t\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t<\/div>\n<\/div>\n\t\t\t<\/div>\n\n<\/div>\n\n\t\t<\/div>\n\t<\/div>\n<\/div>\n\n<\/div>\n\n\n\n<p class=\"\"><\/p>\n","protected":false},"excerpt":{"rendered":"","protected":false},"author":168,"featured_media":0,"parent":168,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_custom_css":"","_custom_js_footer":"","_page_background_color":"","_remove_from_search":false,"_dark_mode":false,"_light_footer_mode":false,"_sidebar_form":{"id":"","name":"","cta":"","redirect":""},"_alert_notification_bar":{"show":true,"bg_color":"","content":"","call_to_action_label":"","call_to_action_link":""},"_footer_cta":{"show":false,"title":"","subtitle":"","cta_text":"","cta_link":"","background":{"id":0,"url":""}},"_cmv_customer_logo":{"id":0,"url":""},"_badge_descriptions":"","_featured_resource":"","_featured_resource_type":"","_custom_title":"","_featured_case_study":"","_footer_case_study":"","_upcoming_webinars_title":"","_upcoming_techdemos_title":"","_template_config":"","_lead_capture_hide_menu":false,"_lead_capture_cta_text":"","_lead_capture_cta_link":"","i18n_hreflangs":"","footnotes":""},"cmv_group":[],"cmv_structure_scheme":[],"class_list":{"0":"post-531252","1":"page","2":"type-page","3":"status-publish","5":"entry"},"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v23.0 (Yoast SEO v23.0) - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>What to Know About the 3-2-1 Backup Rule | Commvault<\/title>\n<meta name=\"description\" content=\"Discover the 3-2-1 backup rule, and how it can be used to protect your company from data loss. 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