Your IP : 216.73.216.220

Current Path : /snap/lxd/current/share/lxd-documentation/howto/disaster_recovery_replication/
Upload File :
Current File : //snap/lxd/current/share/lxd-documentation/howto/disaster_recovery_replication/index.html

<!doctype html>
<html class="no-js" lang="en" data-content_root="../../">
  <head><meta charset="utf-8">
    <meta name="viewport" content="width=device-width,initial-scale=1">
    <meta name="color-scheme" content="light dark"><meta name="viewport" content="width=device-width, initial-scale=1" />
<meta property="og:title" content="How to perform disaster recovery with storage replication" />
<meta property="og:type" content="website" />
<meta property="og:url" content="/howto/disaster_recovery_replication/" />
<meta property="og:site_name" content="LXD documentation" />
<meta property="og:description" content="To enable disaster recovery, set up a secondary LXD deployment in a different location that can take over running workloads if a non-clustered LXD server or an entire cluster goes offline or become..." />
<meta property="og:image" content="https://documentation.ubuntu.com/lxd/latest/_static/lxd_tag.png" />
<meta property="og:image:alt" content="LXD documentation" />
<meta name="description" content="To enable disaster recovery, set up a secondary LXD deployment in a different location that can take over running workloads if a non-clustered LXD server or an entire cluster goes offline or become..." />

    <meta property="article:modified_time" content="2026-02-12T14:01:41+00:00" /><link rel="index" title="Index" href="../../genindex/"><link rel="search" title="Search" href="../../search/"><link rel="next" title="How to manage the LXD snap" href="../snap/"><link rel="prev" title="How to recover instances in case of disaster" href="../disaster_recovery/">
        <link rel="canonical" href="/howto/disaster_recovery_replication/">

    <link rel="shortcut icon" href="../../_static/favicon.ico"><!-- Generated with Sphinx 7.4.7 and Furo 2025.12.19 -->
        <title>How to perform disaster recovery with storage replication - LXD documentation</title>
      <link rel="stylesheet" type="text/css" href="../../_static/pygments.css?v=d111a655" />
    <link rel="stylesheet" type="text/css" href="../../_static/styles/furo.css?v=7bdb33bb" />
    <link rel="stylesheet" type="text/css" href="../../_static/copybutton.css?v=76b2166b" />
    <link rel="stylesheet" type="text/css" href="../../_static/config-options.css" />
    <link rel="stylesheet" type="text/css" href="../../_static/related-links.css" />
    <link rel="stylesheet" type="text/css" href="../../_static/terminal.css" />
    <link rel="stylesheet" type="text/css" href="../../_static/youtube.css" />
    <link rel="stylesheet" type="text/css" href="../../_static/sphinx-design.min.css?v=95c83b7e" />
    <link rel="stylesheet" type="text/css" href="../../_static/styles/furo-extensions.css?v=8dab3a3b" />
    <link rel="stylesheet" type="text/css" href="../../_static/lxd_custom.css?v=bfbf4da2" />
    <link rel="stylesheet" type="text/css" href="../../_static/cookie-banner.css?v=b74831ab" />
    <link rel="stylesheet" type="text/css" href="../../_static/custom.css?v=e189117a" />
    <link rel="stylesheet" type="text/css" href="../../_static/header.css?v=a8078839" />
    <link rel="stylesheet" type="text/css" href="../../_static/github_issue_links.css?v=3d761185" />
    <link rel="stylesheet" type="text/css" href="../../_static/furo_colors.css?v=825fec6f" />
    
</head>
  <body>
    <header id="header" class="p-navigation">
  <!-- Google Tag Manager -->
  <script>
    (function(w, d, s, l, i) {
      w[l] = w[l] || [];
      w[l].push({
        'gtm.start': new Date().getTime(),
        event: 'gtm.js'
      });
      var f = d.getElementsByTagName(s)[0];
      var j = d.createElement(s);
      var dl = '';
      if (l != 'dataLayer') {
          dl = '&l=' + l;
      }
      j.async = true;
      j.src = 'https://www.googletagmanager.com/gtm.js?id=' + i + dl;
      f.parentNode.insertBefore(j, f);
    })(window, document, 'script', 'dataLayer', 'GTM-KNX3CJC');
  </script>
  
  <div class="p-navigation__nav" role="menubar">

    <ul class="p-navigation__links" role="menu">

      <li>
        
        <a class="p-logo" href="https://canonical.com/lxd" aria-current="page">
          <img src="../../_static/lxd_tag.png" alt="Logo" class="p-logo-image">
          <div class="p-logo-text p-heading--4">LXD
          </div>
        </a>
        
      </li>

      <li class="nav-ubuntu-com">
        
        <a href="https://canonical.com/lxd" class="p-navigation__link">canonical.com/lxd</a>
        
      </li>

      <li class="nav-dropdown">
        <a href="#" class="p-navigation__link nav-more-links"
           id="more-resources-toggle"
           aria-haspopup="true"
           aria-expanded="false">
          More resources
        </a>
        <ul class="more-links-dropdown" aria-labelledby="more-resources-toggle">
          
          <li>
            <a href="https://discourse.ubuntu.com/c/lxd/" class="p-navigation__sub-link p-dropdown__link">Discourse</a>
          </li>
          
      
          
      
          
          <li>
            <a href="https://matrix.to/#/#documentation:ubuntu.com" class="p-navigation__sub-link p-dropdown__link">Matrix</a>
          </li>
          
      
          
          <li>
            <a href="https://github.com/canonical/lxd" class="p-navigation__sub-link p-dropdown__link">GitHub</a>
          </li>
          

        </ul>
      </li>

    </ul>
  </div>
</header>
   
    <script>
      document.body.dataset.theme = localStorage.getItem("theme") || "auto";
    </script>
    

<svg xmlns="http://www.w3.org/2000/svg" style="display: none;">
  <symbol id="svg-toc" viewBox="0 0 24 24">
    <title>Contents</title>
    <svg stroke="currentColor" fill="currentColor" stroke-width="0" viewBox="0 0 1024 1024">
      <path d="M408 442h480c4.4 0 8-3.6 8-8v-56c0-4.4-3.6-8-8-8H408c-4.4 0-8 3.6-8 8v56c0 4.4 3.6 8 8 8zm-8 204c0 4.4 3.6 8 8 8h480c4.4 0 8-3.6 8-8v-56c0-4.4-3.6-8-8-8H408c-4.4 0-8 3.6-8 8v56zm504-486H120c-4.4 0-8 3.6-8 8v56c0 4.4 3.6 8 8 8h784c4.4 0 8-3.6 8-8v-56c0-4.4-3.6-8-8-8zm0 632H120c-4.4 0-8 3.6-8 8v56c0 4.4 3.6 8 8 8h784c4.4 0 8-3.6 8-8v-56c0-4.4-3.6-8-8-8zM115.4 518.9L271.7 642c5.8 4.6 14.4.5 14.4-6.9V388.9c0-7.4-8.5-11.5-14.4-6.9L115.4 505.1a8.74 8.74 0 0 0 0 13.8z"/>
    </svg>
  </symbol>
  <symbol id="svg-menu" viewBox="0 0 24 24">
    <title>Menu</title>
    <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24" fill="none" stroke="currentColor"
      stroke-width="2" stroke-linecap="round" stroke-linejoin="round" class="feather-menu">
      <line x1="3" y1="12" x2="21" y2="12"></line>
      <line x1="3" y1="6" x2="21" y2="6"></line>
      <line x1="3" y1="18" x2="21" y2="18"></line>
    </svg>
  </symbol>
  <symbol id="svg-arrow-right" viewBox="0 0 24 24">
    <title>Expand</title>
    <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24" fill="none" stroke="currentColor"
      stroke-width="2" stroke-linecap="round" stroke-linejoin="round" class="feather-chevron-right">
      <polyline points="9 18 15 12 9 6"></polyline>
    </svg>
  </symbol>
  <symbol id="svg-sun" viewBox="0 0 24 24">
    <title>Light mode</title>
    <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24" fill="none" stroke="currentColor"
      stroke-width="1" stroke-linecap="round" stroke-linejoin="round" class="feather-sun">
      <circle cx="12" cy="12" r="5"></circle>
      <line x1="12" y1="1" x2="12" y2="3"></line>
      <line x1="12" y1="21" x2="12" y2="23"></line>
      <line x1="4.22" y1="4.22" x2="5.64" y2="5.64"></line>
      <line x1="18.36" y1="18.36" x2="19.78" y2="19.78"></line>
      <line x1="1" y1="12" x2="3" y2="12"></line>
      <line x1="21" y1="12" x2="23" y2="12"></line>
      <line x1="4.22" y1="19.78" x2="5.64" y2="18.36"></line>
      <line x1="18.36" y1="5.64" x2="19.78" y2="4.22"></line>
    </svg>
  </symbol>
  <symbol id="svg-moon" viewBox="0 0 24 24">
    <title>Dark mode</title>
    <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24" fill="none" stroke="currentColor"
      stroke-width="1" stroke-linecap="round" stroke-linejoin="round" class="icon-tabler-moon">
      <path stroke="none" d="M0 0h24v24H0z" fill="none" />
      <path d="M12 3c.132 0 .263 0 .393 0a7.5 7.5 0 0 0 7.92 12.446a9 9 0 1 1 -8.313 -12.454z" />
    </svg>
  </symbol>
  <symbol id="svg-sun-with-moon" viewBox="0 0 24 24">
    <title>Auto light/dark, in light mode</title>
    <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24" fill="none" stroke="currentColor"
      stroke-width="1" stroke-linecap="round" stroke-linejoin="round"
      class="icon-custom-derived-from-feather-sun-and-tabler-moon">
      <path style="opacity: 50%" d="M 5.411 14.504 C 5.471 14.504 5.532 14.504 5.591 14.504 C 3.639 16.319 4.383 19.569 6.931 20.352 C 7.693 20.586 8.512 20.551 9.25 20.252 C 8.023 23.207 4.056 23.725 2.11 21.184 C 0.166 18.642 1.702 14.949 4.874 14.536 C 5.051 14.512 5.231 14.5 5.411 14.5 L 5.411 14.504 Z"/>
      <line x1="14.5" y1="3.25" x2="14.5" y2="1.25"/>
      <line x1="14.5" y1="15.85" x2="14.5" y2="17.85"/>
      <line x1="10.044" y1="5.094" x2="8.63" y2="3.68"/>
      <line x1="19" y1="14.05" x2="20.414" y2="15.464"/>
      <line x1="8.2" y1="9.55" x2="6.2" y2="9.55"/>
      <line x1="20.8" y1="9.55" x2="22.8" y2="9.55"/>
      <line x1="10.044" y1="14.006" x2="8.63" y2="15.42"/>
      <line x1="19" y1="5.05" x2="20.414" y2="3.636"/>
      <circle cx="14.5" cy="9.55" r="3.6"/>
    </svg>
  </symbol>
  <symbol id="svg-moon-with-sun" viewBox="0 0 24 24">
    <title>Auto light/dark, in dark mode</title>
    <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24" fill="none" stroke="currentColor"
      stroke-width="1" stroke-linecap="round" stroke-linejoin="round"
      class="icon-custom-derived-from-feather-sun-and-tabler-moon">
      <path d="M 8.282 7.007 C 8.385 7.007 8.494 7.007 8.595 7.007 C 5.18 10.184 6.481 15.869 10.942 17.24 C 12.275 17.648 13.706 17.589 15 17.066 C 12.851 22.236 5.91 23.143 2.505 18.696 C -0.897 14.249 1.791 7.786 7.342 7.063 C 7.652 7.021 7.965 7 8.282 7 L 8.282 7.007 Z"/>
      <line style="opacity: 50%" x1="18" y1="3.705" x2="18" y2="2.5"/>
      <line style="opacity: 50%" x1="18" y1="11.295" x2="18" y2="12.5"/>
      <line style="opacity: 50%" x1="15.316" y1="4.816" x2="14.464" y2="3.964"/>
      <line style="opacity: 50%" x1="20.711" y1="10.212" x2="21.563" y2="11.063"/>
      <line style="opacity: 50%" x1="14.205" y1="7.5" x2="13.001" y2="7.5"/>
      <line style="opacity: 50%" x1="21.795" y1="7.5" x2="23" y2="7.5"/>
      <line style="opacity: 50%" x1="15.316" y1="10.184" x2="14.464" y2="11.036"/>
      <line style="opacity: 50%" x1="20.711" y1="4.789" x2="21.563" y2="3.937"/>
      <circle style="opacity: 50%" cx="18" cy="7.5" r="2.169"/>
    </svg>
  </symbol>
  <symbol id="svg-pencil" viewBox="0 0 24 24">
    <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24" fill="none" stroke="currentColor"
      stroke-width="1" stroke-linecap="round" stroke-linejoin="round" class="icon-tabler-pencil-code">
      <path d="M4 20h4l10.5 -10.5a2.828 2.828 0 1 0 -4 -4l-10.5 10.5v4" />
      <path d="M13.5 6.5l4 4" />
      <path d="M20 21l2 -2l-2 -2" />
      <path d="M17 17l-2 2l2 2" />
    </svg>
  </symbol>
  <symbol id="svg-eye" viewBox="0 0 24 24">
    <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24" fill="none" stroke="currentColor"
      stroke-width="1" stroke-linecap="round" stroke-linejoin="round" class="icon-tabler-eye-code">
      <path stroke="none" d="M0 0h24v24H0z" fill="none" />
      <path d="M10 12a2 2 0 1 0 4 0a2 2 0 0 0 -4 0" />
      <path
        d="M11.11 17.958c-3.209 -.307 -5.91 -2.293 -8.11 -5.958c2.4 -4 5.4 -6 9 -6c3.6 0 6.6 2 9 6c-.21 .352 -.427 .688 -.647 1.008" />
      <path d="M20 21l2 -2l-2 -2" />
      <path d="M17 17l-2 2l2 2" />
    </svg>
  </symbol>
</svg>

<input type="checkbox" class="sidebar-toggle" name="__navigation" id="__navigation" aria-label="Toggle site navigation sidebar">
<input type="checkbox" class="sidebar-toggle" name="__toc" id="__toc" aria-label="Toggle table of contents sidebar">
<label class="overlay sidebar-overlay" for="__navigation"></label>
<label class="overlay toc-overlay" for="__toc"></label>

<a class="skip-to-content muted-link" href="#furo-main-content">Skip to content</a>



<div class="page">
  <header class="mobile-header">
    <div class="header-left">
      <label class="nav-overlay-icon" for="__navigation">
        <span class="icon"><svg><use href="#svg-menu"></use></svg></span>
      </label>
    </div>
    <div class="header-center">
      <a href="../../"><div class="brand">LXD documentation</div></a>
    </div>
    <div class="header-right">
      <div class="theme-toggle-container theme-toggle-header">
        <button class="theme-toggle" aria-label="Toggle Light / Dark / Auto color theme">
          <svg class="theme-icon-when-auto-light"><use href="#svg-sun-with-moon"></use></svg>
          <svg class="theme-icon-when-auto-dark"><use href="#svg-moon-with-sun"></use></svg>
          <svg class="theme-icon-when-dark"><use href="#svg-moon"></use></svg>
          <svg class="theme-icon-when-light"><use href="#svg-sun"></use></svg>
        </button>
      </div>
      <label class="toc-overlay-icon toc-header-icon" for="__toc">
        <span class="icon"><svg><use href="#svg-toc"></use></svg></span>
      </label>
    </div>
  </header>
  <aside class="sidebar-drawer">
    <div class="sidebar-container">
      
      <div class="sidebar-sticky"><a class="sidebar-brand" href="../../">
  
  <span class="sidebar-brand-text">LXD documentation</span>
  
</a><form class="sidebar-search-container" method="get" action="../../search/" role="search">
    <input class="sidebar-search" placeholder="Search" name="q" aria-label="Search">
    <input type="submit" value="Go">
    <input type="hidden" name="check_keywords" value="yes">
    <input type="hidden" name="area" value="default">
  </form>
  <div id="searchbox"></div><div class="sidebar-scroll"><div class="sidebar-tree">
  <ul class="current">
<li class="toctree-l1"><a class="reference internal" href="../../">LXD</a></li>
<li class="toctree-l1"><a class="reference internal" href="../../tutorial/first_steps/">Tutorial</a></li>
<li class="toctree-l1 current has-children"><a class="reference internal" href="../">How-to guides</a><input aria-label="Toggle navigation of How-to guides" checked="" class="toctree-checkbox" id="toctree-checkbox-1" name="toctree-checkbox-1" role="switch" type="checkbox"/><label for="toctree-checkbox-1"><span class="icon"><svg><use href="#svg-arrow-right"></use></svg></span></label><ul class="current">
<li class="toctree-l2 has-children"><a class="reference internal" href="../../getting_started/">Getting started</a><input aria-label="Toggle navigation of Getting started" class="toctree-checkbox" id="toctree-checkbox-2" name="toctree-checkbox-2" role="switch" type="checkbox"/><label for="toctree-checkbox-2"><span class="icon"><svg><use href="#svg-arrow-right"></use></svg></span></label><ul>
<li class="toctree-l3"><a class="reference internal" href="../../installing/">Install LXD</a></li>
<li class="toctree-l3"><a class="reference internal" href="../initialize/">Initialize LXD</a></li>
<li class="toctree-l3"><a class="reference internal" href="../access_ui/">Access the UI</a></li>
<li class="toctree-l3"><a class="reference internal" href="../access_documentation/">Access documentation locally</a></li>
</ul>
</li>
<li class="toctree-l2 has-children"><a class="reference internal" href="../../operation/">LXD server and client</a><input aria-label="Toggle navigation of LXD server and client" class="toctree-checkbox" id="toctree-checkbox-3" name="toctree-checkbox-3" role="switch" type="checkbox"/><label for="toctree-checkbox-3"><span class="icon"><svg><use href="#svg-arrow-right"></use></svg></span></label><ul>
<li class="toctree-l3"><a class="reference internal" href="../server_expose/">Expose LXD to the network</a></li>
<li class="toctree-l3"><a class="reference internal" href="../server_configure/">Configure the LXD server</a></li>
<li class="toctree-l3 has-children"><a class="reference internal" href="../oidc/">Configure single sign-on with OIDC</a><input aria-label="Toggle navigation of Configure single sign-on with OIDC" class="toctree-checkbox" id="toctree-checkbox-4" name="toctree-checkbox-4" role="switch" type="checkbox"/><label for="toctree-checkbox-4"><span class="icon"><svg><use href="#svg-arrow-right"></use></svg></span></label><ul>
<li class="toctree-l4"><a class="reference internal" href="../oidc_auth0/">How to configure Auth0</a></li>
<li class="toctree-l4"><a class="reference internal" href="../oidc_ory/">How to configure Ory Hydra</a></li>
<li class="toctree-l4"><a class="reference internal" href="../oidc_keycloak/">How to configure Keycloak</a></li>
<li class="toctree-l4"><a class="reference internal" href="../oidc_entra_id/">How to configure Entra ID</a></li>
</ul>
</li>
<li class="toctree-l3"><a class="reference internal" href="../../remotes/">Add remote servers</a></li>
<li class="toctree-l3"><a class="reference internal" href="../lxc_alias/">Add command aliases</a></li>
</ul>
</li>
<li class="toctree-l2 has-children"><a class="reference internal" href="../../instances/">Instances</a><input aria-label="Toggle navigation of Instances" class="toctree-checkbox" id="toctree-checkbox-5" name="toctree-checkbox-5" role="switch" type="checkbox"/><label for="toctree-checkbox-5"><span class="icon"><svg><use href="#svg-arrow-right"></use></svg></span></label><ul>
<li class="toctree-l3"><a class="reference internal" href="../instances_create/">Create instances</a></li>
<li class="toctree-l3"><a class="reference internal" href="../instances_configure/">Configure instances</a></li>
<li class="toctree-l3"><a class="reference internal" href="../instances_manage/">Manage instances</a></li>
<li class="toctree-l3"><a class="reference internal" href="../../profiles/">Use profiles</a></li>
<li class="toctree-l3"><a class="reference internal" href="../instances_troubleshoot/">Troubleshoot errors</a></li>
<li class="toctree-l3"><a class="reference internal" href="../instances_ubuntu_pro_attach/">Auto attach Ubuntu Pro</a></li>
<li class="toctree-l3"><a class="reference internal" href="../instances_access_files/">Access files</a></li>
<li class="toctree-l3"><a class="reference internal" href="../instances_console/">Access the console</a></li>
<li class="toctree-l3"><a class="reference internal" href="../../instance-exec/">Run commands</a></li>
<li class="toctree-l3"><a class="reference internal" href="../../cloud-init/">Use cloud-init</a></li>
<li class="toctree-l3"><a class="reference internal" href="../instances_routed_nic_vm/">Add a routed NIC to a VM</a></li>
<li class="toctree-l3"><a class="reference internal" href="../instances_backup/">Back up instances</a></li>
<li class="toctree-l3"><a class="reference internal" href="../instances_migrate/">Migrate instances</a></li>
<li class="toctree-l3"><a class="reference internal" href="../import_machines_to_instances/">Import existing machines</a></li>
<li class="toctree-l3"><a class="reference internal" href="../container_gpu_passthrough_with_docker/">Pass NVIDIA GPUs</a></li>
</ul>
</li>
<li class="toctree-l2 has-children"><a class="reference internal" href="../../images/">Images</a><input aria-label="Toggle navigation of Images" class="toctree-checkbox" id="toctree-checkbox-6" name="toctree-checkbox-6" role="switch" type="checkbox"/><label for="toctree-checkbox-6"><span class="icon"><svg><use href="#svg-arrow-right"></use></svg></span></label><ul>
<li class="toctree-l3"><a class="reference internal" href="../images_remote/">Use remote images</a></li>
<li class="toctree-l3"><a class="reference internal" href="../images_manage/">Manage images</a></li>
<li class="toctree-l3"><a class="reference internal" href="../images_profiles/">Associate profiles</a></li>
<li class="toctree-l3"><a class="reference internal" href="../images_copy/">Copy and import images</a></li>
<li class="toctree-l3"><a class="reference internal" href="../images_create/">Create images</a></li>
</ul>
</li>
<li class="toctree-l2 has-children"><a class="reference internal" href="../../projects/">Projects</a><input aria-label="Toggle navigation of Projects" class="toctree-checkbox" id="toctree-checkbox-7" name="toctree-checkbox-7" role="switch" type="checkbox"/><label for="toctree-checkbox-7"><span class="icon"><svg><use href="#svg-arrow-right"></use></svg></span></label><ul>
<li class="toctree-l3"><a class="reference internal" href="../projects_create/">Create and configure</a></li>
<li class="toctree-l3"><a class="reference internal" href="../projects_work/">Work with projects</a></li>
<li class="toctree-l3"><a class="reference internal" href="../projects_confine/">Confine users to projects</a></li>
</ul>
</li>
<li class="toctree-l2 has-children"><a class="reference internal" href="../../storage/">Storage</a><input aria-label="Toggle navigation of Storage" class="toctree-checkbox" id="toctree-checkbox-8" name="toctree-checkbox-8" role="switch" type="checkbox"/><label for="toctree-checkbox-8"><span class="icon"><svg><use href="#svg-arrow-right"></use></svg></span></label><ul>
<li class="toctree-l3"><a class="reference internal" href="../storage_pools/">Manage pools</a></li>
<li class="toctree-l3"><a class="reference internal" href="../storage_volumes/">Manage volumes</a></li>
<li class="toctree-l3"><a class="reference internal" href="../storage_buckets/">Manage buckets</a></li>
<li class="toctree-l3"><a class="reference internal" href="../storage_create_instance/">Create an instance in a pool</a></li>
<li class="toctree-l3"><a class="reference internal" href="../storage_backup_volume/">Back up a volume</a></li>
<li class="toctree-l3"><a class="reference internal" href="../storage_move_volume/">Move or copy a volume</a></li>
<li class="toctree-l3"><a class="reference internal" href="../storage_csi/">Use the LXD CSI driver with Kubernetes</a></li>
</ul>
</li>
<li class="toctree-l2 has-children"><a class="reference internal" href="../../networks/">Networking</a><input aria-label="Toggle navigation of Networking" class="toctree-checkbox" id="toctree-checkbox-9" name="toctree-checkbox-9" role="switch" type="checkbox"/><label for="toctree-checkbox-9"><span class="icon"><svg><use href="#svg-arrow-right"></use></svg></span></label><ul>
<li class="toctree-l3"><a class="reference internal" href="../network_create/">Create a network</a></li>
<li class="toctree-l3"><a class="reference internal" href="../network_configure/">Configure a network</a></li>
<li class="toctree-l3"><a class="reference internal" href="../network_bgp/">Configure as BGP server</a></li>
<li class="toctree-l3"><a class="reference internal" href="../network_acls/">Configure network ACLs</a></li>
<li class="toctree-l3"><a class="reference internal" href="../network_forwards/">Configure forwards</a></li>
<li class="toctree-l3"><a class="reference internal" href="../network_zones/">Configure network zones</a></li>
<li class="toctree-l3"><a class="reference internal" href="../network_bridge_firewalld/">Configure your firewall</a></li>
<li class="toctree-l3"><a class="reference internal" href="../network_bridge_resolved/">Integrate with resolved</a></li>
<li class="toctree-l3"><a class="reference internal" href="../network_ovn_setup/">Set up OVN</a></li>
<li class="toctree-l3"><a class="reference internal" href="../network_load_balancers/">Configure load balancers</a></li>
<li class="toctree-l3"><a class="reference internal" href="../network_ovn_peers/">Configure peer routing</a></li>
<li class="toctree-l3"><a class="reference internal" href="../network_ipam/">Display IPAM information</a></li>
</ul>
</li>
<li class="toctree-l2 has-children"><a class="reference internal" href="../../clustering/">Clustering</a><input aria-label="Toggle navigation of Clustering" class="toctree-checkbox" id="toctree-checkbox-10" name="toctree-checkbox-10" role="switch" type="checkbox"/><label for="toctree-checkbox-10"><span class="icon"><svg><use href="#svg-arrow-right"></use></svg></span></label><ul>
<li class="toctree-l3"><a class="reference internal" href="../cluster_form/">Form a cluster</a></li>
<li class="toctree-l3"><a class="reference internal" href="../cluster_manage/">Manage a cluster</a></li>
<li class="toctree-l3"><a class="reference internal" href="../cluster_config_networks/">Configure networks</a></li>
<li class="toctree-l3"><a class="reference internal" href="../cluster_config_storage/">Configure storage</a></li>
<li class="toctree-l3"><a class="reference internal" href="../cluster_manage_instance/">Manage instances</a></li>
<li class="toctree-l3"><a class="reference internal" href="../cluster_groups/">Set up cluster groups</a></li>
<li class="toctree-l3"><a class="reference internal" href="../cluster_placement_groups/">Use placement groups</a></li>
<li class="toctree-l3"><a class="reference internal" href="../cluster_recover/">Recover a cluster</a></li>
<li class="toctree-l3"><a class="reference internal" href="../cluster_vip/">Set up a highly available virtual IP</a></li>
</ul>
</li>
<li class="toctree-l2 current has-children"><a class="reference internal" href="../../production-setup/">Production setup</a><input aria-label="Toggle navigation of Production setup" checked="" class="toctree-checkbox" id="toctree-checkbox-11" name="toctree-checkbox-11" role="switch" type="checkbox"/><label for="toctree-checkbox-11"><span class="icon"><svg><use href="#svg-arrow-right"></use></svg></span></label><ul class="current">
<li class="toctree-l3"><a class="reference internal" href="../benchmark_performance/">Benchmark performance</a></li>
<li class="toctree-l3"><a class="reference internal" href="../network_increase_bandwidth/">Increase bandwidth</a></li>
<li class="toctree-l3"><a class="reference internal" href="../../metrics/">Monitor metrics</a></li>
<li class="toctree-l3"><a class="reference internal" href="../logs_loki/">Send logs to Loki</a></li>
<li class="toctree-l3"><a class="reference internal" href="../grafana/">Set up Grafana</a></li>
<li class="toctree-l3"><a class="reference internal" href="../../backup/">Back up a server</a></li>
<li class="toctree-l3"><a class="reference internal" href="../disaster_recovery/">Recover instances</a></li>
<li class="toctree-l3 current current-page"><a class="current reference internal" href="#">Disaster recovery with storage replication</a></li>
</ul>
</li>
<li class="toctree-l2"><a class="reference internal" href="../snap/">Manage the snap</a></li>
<li class="toctree-l2"><a class="reference internal" href="../security_harden/">Harden security</a></li>
<li class="toctree-l2 has-children"><a class="reference internal" href="../troubleshoot/">Troubleshooting</a><input aria-label="Toggle navigation of Troubleshooting" class="toctree-checkbox" id="toctree-checkbox-12" name="toctree-checkbox-12" role="switch" type="checkbox"/><label for="toctree-checkbox-12"><span class="icon"><svg><use href="#svg-arrow-right"></use></svg></span></label><ul>
<li class="toctree-l3"><a class="reference internal" href="../network_bridge_firewalld/">Configure your firewall</a></li>
<li class="toctree-l3"><a class="reference internal" href="../instances_troubleshoot/">Troubleshoot instances</a></li>
<li class="toctree-l3"><a class="reference internal" href="../dqlite_troubleshoot/">Troubleshoot Dqlite</a></li>
<li class="toctree-l3"><a class="reference internal" href="../../debugging/">Debug LXD</a></li>
<li class="toctree-l3"><a class="reference internal" href="../../faq/">Frequently asked</a></li>
</ul>
</li>
<li class="toctree-l2"><a class="reference internal" href="../../support/">Get support</a></li>
<li class="toctree-l2"><a class="reference internal" href="../../contributing/">Contribute to LXD</a></li>
<li class="toctree-l2"><a class="reference internal" href="../auth_bearer/">How to authenticate to the LXD API using bearer tokens</a></li>
<li class="toctree-l2"><a class="reference internal" href="../devlxd_authenticate/">How to authenticate to the DevLXD API</a></li>
</ul>
</li>
<li class="toctree-l1 has-children"><a class="reference internal" href="../../explanation/">Explanation</a><input aria-label="Toggle navigation of Explanation" class="toctree-checkbox" id="toctree-checkbox-13" name="toctree-checkbox-13" role="switch" type="checkbox"/><label for="toctree-checkbox-13"><span class="icon"><svg><use href="#svg-arrow-right"></use></svg></span></label><ul>
<li class="toctree-l2"><a class="reference internal" href="../../explanation/lxd_lxc/"><code class="docutils literal notranslate"><span class="pre">lxd</span></code> and <code class="docutils literal notranslate"><span class="pre">lxc</span></code></a></li>
<li class="toctree-l2"><a class="reference internal" href="../../explanation/instances/">Containers and VMs</a></li>
<li class="toctree-l2"><a class="reference internal" href="../../image-handling/">Local and remote images</a></li>
<li class="toctree-l2"><a class="reference internal" href="../../explanation/storage/">Storage pools, volumes, and buckets</a></li>
<li class="toctree-l2"><a class="reference internal" href="../../explanation/networks/">Networking setups</a></li>
<li class="toctree-l2"><a class="reference internal" href="../../database/">The LXD Dqlite database</a></li>
<li class="toctree-l2"><a class="reference internal" href="../../explanation/lxc_show_info/"><code class="docutils literal notranslate"><span class="pre">lxc</span></code> <code class="docutils literal notranslate"><span class="pre">show</span></code> and <code class="docutils literal notranslate"><span class="pre">info</span></code></a></li>
<li class="toctree-l2"><a class="reference internal" href="../../authentication/">Remote API authentication</a></li>
<li class="toctree-l2"><a class="reference internal" href="../../explanation/authorization/">Remote API authorization</a></li>
<li class="toctree-l2"><a class="reference internal" href="../../explanation/projects/">Instances grouping with projects</a></li>
<li class="toctree-l2"><a class="reference internal" href="../../explanation/clusters/">Clusters</a></li>
<li class="toctree-l2"><a class="reference internal" href="../../explanation/performance_tuning/">Performance tuning</a></li>
<li class="toctree-l2"><a class="reference internal" href="../../explanation/security/">Security</a></li>
<li class="toctree-l2"><a class="reference internal" href="../../explanation/bpf/">Privilege delegation using BPF Token</a></li>
<li class="toctree-l2"><a class="reference internal" href="../../explanation/csi/">The LXD CSI driver</a></li>
</ul>
</li>
<li class="toctree-l1 has-children"><a class="reference internal" href="../../reference/">Reference</a><input aria-label="Toggle navigation of Reference" class="toctree-checkbox" id="toctree-checkbox-14" name="toctree-checkbox-14" role="switch" type="checkbox"/><label for="toctree-checkbox-14"><span class="icon"><svg><use href="#svg-arrow-right"></use></svg></span></label><ul>
<li class="toctree-l2"><a class="reference internal" href="../../requirements/">Requirements</a></li>
<li class="toctree-l2"><a class="reference internal" href="../../architectures/">Architectures</a></li>
<li class="toctree-l2 has-children"><a class="reference internal" href="../../reference/release-notes/">Release notes</a><input aria-label="Toggle navigation of Release notes" class="toctree-checkbox" id="toctree-checkbox-15" name="toctree-checkbox-15" role="switch" type="checkbox"/><label for="toctree-checkbox-15"><span class="icon"><svg><use href="#svg-arrow-right"></use></svg></span></label><ul>
<li class="toctree-l3"><a class="reference internal" href="../../reference/release-notes/release-notes-6.7/">LXD 6.7</a></li>
<li class="toctree-l3"><a class="reference internal" href="../../reference/release-notes/release-notes-6.6/">LXD 6.6</a></li>
</ul>
</li>
<li class="toctree-l2"><a class="reference internal" href="../../reference/releases-snap/">Releases and snap</a></li>
<li class="toctree-l2"><a class="reference internal" href="../../reference/remote_image_servers/">Remote image servers</a></li>
<li class="toctree-l2"><a class="reference internal" href="../../reference/image_format/">Image format</a></li>
<li class="toctree-l2"><a class="reference internal" href="../../guest-os-compatibility/">Guest OS compatibility</a></li>
<li class="toctree-l2"><a class="reference internal" href="../../container-environment/">Container environment</a></li>
<li class="toctree-l2"><a class="reference internal" href="../../config-options/">Configuration option index</a></li>
<li class="toctree-l2"><a class="reference internal" href="../../server/">Server configuration</a></li>
<li class="toctree-l2 has-children"><a class="reference internal" href="../../explanation/instance_config/">Instance configuration</a><input aria-label="Toggle navigation of Instance configuration" class="toctree-checkbox" id="toctree-checkbox-16" name="toctree-checkbox-16" role="switch" type="checkbox"/><label for="toctree-checkbox-16"><span class="icon"><svg><use href="#svg-arrow-right"></use></svg></span></label><ul>
<li class="toctree-l3"><a class="reference internal" href="../../reference/instance_properties/">Instance properties</a></li>
<li class="toctree-l3"><a class="reference internal" href="../../reference/instance_options/">Instance options</a></li>
<li class="toctree-l3 has-children"><a class="reference internal" href="../../reference/devices/">Devices</a><input aria-label="Toggle navigation of Devices" class="toctree-checkbox" id="toctree-checkbox-17" name="toctree-checkbox-17" role="switch" type="checkbox"/><label for="toctree-checkbox-17"><span class="icon"><svg><use href="#svg-arrow-right"></use></svg></span></label><ul>
<li class="toctree-l4"><a class="reference internal" href="../../reference/standard_devices/">Standard devices</a></li>
<li class="toctree-l4"><a class="reference internal" href="../../reference/devices_none/">Type: <code class="docutils literal notranslate"><span class="pre">none</span></code></a></li>
<li class="toctree-l4"><a class="reference internal" href="../../reference/devices_nic/">Type: <code class="docutils literal notranslate"><span class="pre">nic</span></code></a></li>
<li class="toctree-l4"><a class="reference internal" href="../../reference/devices_disk/">Type: <code class="docutils literal notranslate"><span class="pre">disk</span></code></a></li>
<li class="toctree-l4"><a class="reference internal" href="../../reference/devices_unix_char/">Type: <code class="docutils literal notranslate"><span class="pre">unix-char</span></code></a></li>
<li class="toctree-l4"><a class="reference internal" href="../../reference/devices_unix_block/">Type: <code class="docutils literal notranslate"><span class="pre">unix-block</span></code></a></li>
<li class="toctree-l4"><a class="reference internal" href="../../reference/devices_usb/">Type: <code class="docutils literal notranslate"><span class="pre">usb</span></code></a></li>
<li class="toctree-l4"><a class="reference internal" href="../../reference/devices_gpu/">Type: <code class="docutils literal notranslate"><span class="pre">gpu</span></code></a></li>
<li class="toctree-l4"><a class="reference internal" href="../../reference/devices_infiniband/">Type: <code class="docutils literal notranslate"><span class="pre">infiniband</span></code></a></li>
<li class="toctree-l4"><a class="reference internal" href="../../reference/devices_proxy/">Type: <code class="docutils literal notranslate"><span class="pre">proxy</span></code></a></li>
<li class="toctree-l4"><a class="reference internal" href="../../reference/devices_unix_hotplug/">Type: <code class="docutils literal notranslate"><span class="pre">unix-hotplug</span></code></a></li>
<li class="toctree-l4"><a class="reference internal" href="../../reference/devices_tpm/">Type: <code class="docutils literal notranslate"><span class="pre">tpm</span></code></a></li>
<li class="toctree-l4"><a class="reference internal" href="../../reference/devices_pci/">Type: <code class="docutils literal notranslate"><span class="pre">pci</span></code></a></li>
</ul>
</li>
<li class="toctree-l3"><a class="reference internal" href="../../reference/instance_units/">Units for storage and network limits</a></li>
</ul>
</li>
<li class="toctree-l2"><a class="reference internal" href="../../reference/preseed_yaml_fields/">Preseed YAML file fields</a></li>
<li class="toctree-l2"><a class="reference internal" href="../../reference/projects/">Project configuration</a></li>
<li class="toctree-l2 has-children"><a class="reference internal" href="../../reference/storage_drivers/">Storage drivers</a><input aria-label="Toggle navigation of Storage drivers" class="toctree-checkbox" id="toctree-checkbox-18" name="toctree-checkbox-18" role="switch" type="checkbox"/><label for="toctree-checkbox-18"><span class="icon"><svg><use href="#svg-arrow-right"></use></svg></span></label><ul>
<li class="toctree-l3"><a class="reference internal" href="../../reference/storage_dir/">Directory - <code class="docutils literal notranslate"><span class="pre">dir</span></code></a></li>
<li class="toctree-l3"><a class="reference internal" href="../../reference/storage_btrfs/">Btrfs - <code class="docutils literal notranslate"><span class="pre">btrfs</span></code></a></li>
<li class="toctree-l3"><a class="reference internal" href="../../reference/storage_lvm/">LVM - <code class="docutils literal notranslate"><span class="pre">lvm</span></code></a></li>
<li class="toctree-l3"><a class="reference internal" href="../../reference/storage_zfs/">ZFS - <code class="docutils literal notranslate"><span class="pre">zfs</span></code></a></li>
<li class="toctree-l3"><a class="reference internal" href="../../reference/storage_ceph/">Ceph RBD - <code class="docutils literal notranslate"><span class="pre">ceph</span></code></a></li>
<li class="toctree-l3"><a class="reference internal" href="../../reference/storage_powerflex/">Dell PowerFlex - <code class="docutils literal notranslate"><span class="pre">powerflex</span></code></a></li>
<li class="toctree-l3"><a class="reference internal" href="../../reference/storage_pure/">Pure Storage - <code class="docutils literal notranslate"><span class="pre">pure</span></code></a></li>
<li class="toctree-l3"><a class="reference internal" href="../../reference/storage_alletra/">HPE Alletra - <code class="docutils literal notranslate"><span class="pre">alletra</span></code></a></li>
<li class="toctree-l3"><a class="reference internal" href="../../reference/storage_cephfs/">CephFS - <code class="docutils literal notranslate"><span class="pre">cephfs</span></code></a></li>
<li class="toctree-l3"><a class="reference internal" href="../../reference/storage_cephobject/">Ceph Object - <code class="docutils literal notranslate"><span class="pre">cephobject</span></code></a></li>
</ul>
</li>
<li class="toctree-l2 has-children"><a class="reference internal" href="../../reference/networks/">Networks</a><input aria-label="Toggle navigation of Networks" class="toctree-checkbox" id="toctree-checkbox-19" name="toctree-checkbox-19" role="switch" type="checkbox"/><label for="toctree-checkbox-19"><span class="icon"><svg><use href="#svg-arrow-right"></use></svg></span></label><ul>
<li class="toctree-l3"><a class="reference internal" href="../../reference/network_bridge/">Bridge network</a></li>
<li class="toctree-l3"><a class="reference internal" href="../../reference/network_ovn/">OVN network</a></li>
<li class="toctree-l3"><a class="reference internal" href="../../reference/network_macvlan/">Macvlan network</a></li>
<li class="toctree-l3"><a class="reference internal" href="../../reference/network_physical/">Physical network</a></li>
<li class="toctree-l3"><a class="reference internal" href="../../reference/network_sriov/">SR-IOV network</a></li>
</ul>
</li>
<li class="toctree-l2"><a class="reference internal" href="../../reference/cluster_member_config/">Cluster configuration</a></li>
<li class="toctree-l2"><a class="reference internal" href="../../reference/placement_groups/">Placement group configuration</a></li>
<li class="toctree-l2"><a class="reference internal" href="../../reference/server_settings/">Production server settings</a></li>
<li class="toctree-l2"><a class="reference internal" href="../../reference/provided_metrics/">Provided metrics</a></li>
<li class="toctree-l2"><a class="reference internal" href="../../reference/permissions/">Permissions</a></li>
<li class="toctree-l2 has-children"><a class="reference internal" href="../../restapi_landing/">REST API</a><input aria-label="Toggle navigation of REST API" class="toctree-checkbox" id="toctree-checkbox-20" name="toctree-checkbox-20" role="switch" type="checkbox"/><label for="toctree-checkbox-20"><span class="icon"><svg><use href="#svg-arrow-right"></use></svg></span></label><ul>
<li class="toctree-l3"><a class="reference internal" href="../../rest-api/">Main API documentation</a></li>
<li class="toctree-l3"><a class="reference internal" href="../../api/">Main API specification</a></li>
<li class="toctree-l3"><a class="reference internal" href="../../api-extensions/">Main API extensions</a></li>
<li class="toctree-l3"><a class="reference internal" href="../../events/">Events API documentation</a></li>
<li class="toctree-l3"><a class="reference internal" href="../../dev-lxd/">Instance API</a></li>
</ul>
</li>
<li class="toctree-l2"><a class="reference internal" href="../../reference/driver_csi/">LXD CSI driver reference</a></li>
<li class="toctree-l2 has-children"><a class="reference internal" href="../../reference/manpages/">Man pages</a><input aria-label="Toggle navigation of Man pages" class="toctree-checkbox" id="toctree-checkbox-21" name="toctree-checkbox-21" role="switch" type="checkbox"/><label for="toctree-checkbox-21"><span class="icon"><svg><use href="#svg-arrow-right"></use></svg></span></label><ul>
<li class="toctree-l3"><a class="reference internal" href="../../reference/manpages/lxc/"><code class="docutils literal notranslate"><span class="pre">lxc</span></code></a></li>
</ul>
</li>
<li class="toctree-l2 has-children"><a class="reference internal" href="../../internals/">Internals</a><input aria-label="Toggle navigation of Internals" class="toctree-checkbox" id="toctree-checkbox-22" name="toctree-checkbox-22" role="switch" type="checkbox"/><label for="toctree-checkbox-22"><span class="icon"><svg><use href="#svg-arrow-right"></use></svg></span></label><ul>
<li class="toctree-l3"><a class="reference internal" href="../../environment/">Environment variables</a></li>
<li class="toctree-l3"><a class="reference internal" href="../../reference/uefi_variables/">UEFI variables for VMs</a></li>
<li class="toctree-l3"><a class="reference internal" href="../../daemon-behavior/">Daemon behavior</a></li>
<li class="toctree-l3"><a class="reference internal" href="../../syscall-interception/">System call interception</a></li>
<li class="toctree-l3"><a class="reference internal" href="../../userns-idmap/">User namespace setup</a></li>
<li class="toctree-l3"><a class="reference internal" href="../../reference/ovn-internals/">OVN implementation</a></li>
<li class="toctree-l3"><a class="reference internal" href="../../reference/vm_live_migration_internals/">VM live migration implementation</a></li>
<li class="toctree-l3"><a class="reference internal" href="../../reference/dqlite-internals/">Dqlite</a></li>
</ul>
</li>
<li class="toctree-l2"><a class="reference external" href="https://github.com/canonical/lxd">Project repository</a></li>
<li class="toctree-l2"><a class="reference external" href="https://images.lxd.canonical.com">Image server</a></li>
</ul>
</li>
</ul>

</div>
</div>

      </div>
      
    </div>
  </aside>
  <div class="main">
    <div class="content">
      <div class="article-container">
        <a href="#" class="back-to-top muted-link">
          <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24">
            <path d="M13 20h-2V8l-5.5 5.5-1.42-1.42L12 4.16l7.92 7.92-1.42 1.42L13 8v12z"></path>
          </svg>
          <span>Back to top</span>
        </a>
        <div class="content-icon-container">
          <div class="edit-this-page">
  <a class="muted-link" href="https://github.com/canonical/lxd/edit/main/doc/howto/disaster_recovery_replication.md" title="Contribute to this page">
    <svg><use href="#svg-pencil"></use></svg>
    <span class="visually-hidden">Contribute to this page</span>
  </a>
</div><div class="theme-toggle-container theme-toggle-content">
            <button class="theme-toggle" aria-label="Toggle Light / Dark / Auto color theme">
              <svg class="theme-icon-when-auto-light"><use href="#svg-sun-with-moon"></use></svg>
              <svg class="theme-icon-when-auto-dark"><use href="#svg-moon-with-sun"></use></svg>
              <svg class="theme-icon-when-dark"><use href="#svg-moon"></use></svg>
              <svg class="theme-icon-when-light"><use href="#svg-sun"></use></svg>
            </button>
          </div>
          <label class="toc-overlay-icon toc-content-icon" for="__toc">
            <span class="icon"><svg><use href="#svg-toc"></use></svg></span>
          </label>
        </div>
        <article role="main" id="furo-main-content">
          <section id="how-to-perform-disaster-recovery-with-storage-replication">
<span id="disaster-recovery-replication"></span><h1>How to perform disaster recovery with storage replication<a class="headerlink" href="#how-to-perform-disaster-recovery-with-storage-replication" title="Link to this heading">¶</a></h1>
<p>To enable disaster recovery, set up a secondary LXD deployment in a different location that can take over running workloads if a non-clustered LXD server or an entire cluster goes offline or becomes unreachable.</p>
<p>If such an incident occurs, you can rely on the storage layer that replicates all instances and custom volumes to the secondary location. You can then consolidate the storage layer and recover the resources to make them available to
your secondary deployment (see <a class="reference internal" href="../disaster_recovery/#disaster-recovery"><span class="std std-ref">How to recover instances in case of disaster</span></a>).</p>
<p>This requires not only two separate LXD deployments, but also storage replication configuration for the respective storage array.</p>
<div class="note admonition">
<p class="admonition-title">When this applies</p>
<p>Recovery with storage replication is only possible when using remote <a class="reference internal" href="../../reference/storage_drivers/#storage-drivers"><span class="std std-ref">Storage drivers</span></a> which support volume recovery (see <a class="reference internal" href="../../reference/storage_drivers/#storage-drivers-features"><span class="std std-ref">Feature comparison</span></a>). Configuring replication on the storage array is out of scope for LXD and highly dependent on
how each vendor implements replication.</p>
<p>This how-to guide focuses on the steps performed within LXD and mentions storage array requirements where applicable.</p>
</div>
<p>In this guide, we assume two LXD deployments: a primary and a secondary. Each deployment is configured to use only its own co-located storage array, and both operate independently.</p>
<section id="set-up-entities-at-each-location">
<span id="disaster-recovery-replication-entities"></span><h2>Set up entities at each location<a class="headerlink" href="#set-up-entities-at-each-location" title="Link to this heading">¶</a></h2>
<p>Before you can set up storage replication, you must set up the required <a class="reference internal" href="../../explanation/#explanation-entities"><span class="std std-ref">entities</span></a> at each location.</p>
<section id="storage-pool">
<span id="disaster-recovery-replication-entities-pool"></span><h3>Storage pool<a class="headerlink" href="#storage-pool" title="Link to this heading">¶</a></h3>
<p>Ensure that both the primary and secondary LXD deployments have a storage pool on their respective storage arrays that can later be used for replication.</p>
<p>If you need to create a storage pool at either location, see: <a class="reference internal" href="../storage_pools/#storage-create-pool"><span class="std std-ref">Create a storage pool</span></a>.</p>
</section>
<section id="networks-and-profiles">
<span id="disaster-recovery-replication-entities-other"></span><h3>Networks and profiles<a class="headerlink" href="#networks-and-profiles" title="Link to this heading">¶</a></h3>
<p>You might also want to set up other entities, such as <a class="reference internal" href="../../explanation/networks/#networks"><span class="std std-ref">networks</span></a> and <a class="reference internal" href="../../profiles/#profiles"><span class="std std-ref">profiles</span></a>, in advance on the secondary location. This way, in the event of a disaster, you can focus on recovering the volumes.</p>
<p>When performing <a class="reference internal" href="../disaster_recovery/#disaster-recovery"><span class="std std-ref">How to recover instances in case of disaster</span></a>, LXD checks if the required entities are present and notifies you if anything is missing. The recovery does not create these entities.</p>
</section>
</section>
<section id="set-up-storage-replication">
<span id="disaster-recovery-replication-setup"></span><h2>Set up storage replication<a class="headerlink" href="#set-up-storage-replication" title="Link to this heading">¶</a></h2>
<p>Replication must be configured outside of LXD, according to the concepts and constructs by the storage vendor.</p>
<p>The following links lead to replication setup guides published by various storage vendors:</p>
<ul class="simple">
<li><p>Ceph RBD: <a class="reference external" href="https://docs.ceph.com/en/reef/rbd/rbd-mirroring/">RBD mirroring</a></p></li>
<li><p>Dell PowerFlex: <a class="reference external" href="https://infohub.delltechnologies.com/en-us/t/dell-powerflex-introduction-to-replication/">Introduction to Replication</a></p></li>
</ul>
<p>Once you have configured the connection between the primary and secondary storage arrays, follow the relevant storage vendor’s steps to set up the actual replication of volumes.</p>
<p>Some vendors (such as Dell) use a concept called replication consistency group (RCG), which allows consistent replication of a group of volumes. An RCG can contain an instance’s volume along with all of its attached custom volumes. Other vendors might use different concepts.</p>
<section id="known-storage-array-limitations">
<span id="disaster-recovery-replication-limitations"></span><h3>Known storage array limitations<a class="headerlink" href="#known-storage-array-limitations" title="Link to this heading">¶</a></h3>
<p>When setting up replication, consider the following limitations:</p>
<section id="powerflex">
<span id="disaster-recovery-replication-limitations-powerflex"></span><h4>PowerFlex<a class="headerlink" href="#powerflex" title="Link to this heading">¶</a></h4>
<dl class="simple myst">
<dt>Cannot replicate and recover volumes with snapshots</dt><dd><p>In <a class="reference internal" href="../../reference/storage_powerflex/#storage-powerflex"><span class="std std-ref">PowerFlex</span></a>, a volume’s snapshot appears as its own volume but is still logically connected to its parent volume (vTree).
When replicating a volume inside a RCG, its snapshots are not replicated; this causes inconsistencies on the secondary location.
A volume’s snapshot can be replicated but will be placed inside a new vTree, losing the logical relation to its parent volume.
During recovery, LXD notices this inconsistency and raises an error.</p>
</dd>
</dl>
</section>
<section id="ceph-rbd">
<span id="disaster-recovery-replication-cephrdb"></span><h4>Ceph RBD<a class="headerlink" href="#ceph-rbd" title="Link to this heading">¶</a></h4>
<dl class="simple myst">
<dt>Cannot use journaling mode</dt><dd><p>On <a class="reference internal" href="../../reference/storage_ceph/#storage-ceph"><span class="std std-ref">Ceph RBD</span></a> storage arrays, it’s possible to configure mirroring using either journaling or snapshot mode.
However, with LXD, only snapshot mode is supported. This is because the volumes need to be mapped to the host for read access during recovery, which might not be possible due to missing kernel features.</p>
</dd>
</dl>
</section>
</section>
</section>
<section id="verify-replication">
<span id="disaster-recovery-replication-verify"></span><h2>Verify replication<a class="headerlink" href="#verify-replication" title="Link to this heading">¶</a></h2>
<p>After setting up storage replication, confirm that the primary location’s volumes are successfully replicated to the secondary location.</p>
<div class="important admonition">
<p class="admonition-title">Check replication regularly</p>
<p>For recovery, it’s essential that replication is running consistently, so be sure to check this regularly. If the replication fails to run, you are at risk of losing data whenever the primary location experiences an outage.</p>
</div>
</section>
<section id="promote-secondary-location-after-disaster">
<span id="disaster-recovery-replication-promote"></span><h2>Promote secondary location after disaster<a class="headerlink" href="#promote-secondary-location-after-disaster" title="Link to this heading">¶</a></h2>
<p>If the primary location becomes unreachable, the secondary location can be promoted to become the new source of truth. The method to promote the secondary storage array depends on the storage vendor. For links to vendor guides, see: <a class="reference internal" href="#disaster-recovery-replication-setup"><span class="std std-ref">Set up storage replication</span></a>.</p>
<div class="important admonition">
<p class="admonition-title">Potential data loss</p>
<p>If there is non-replicated data remaining on the primary location, promoting the secondary array might cause some data loss. Consult the <a class="reference internal" href="#disaster-recovery-replication-setup"><span class="std std-ref">storage vendor’s documentation</span></a> for further information.</p>
</div>
</section>
<section id="recover-resources">
<span id="disaster-recovery-replication-recover"></span><h2>Recover resources<a class="headerlink" href="#recover-resources" title="Link to this heading">¶</a></h2>
<p>After the secondary storage array has been promoted, you can start recovering the workload. Run the steps in <a class="reference internal" href="../disaster_recovery/#disaster-recovery"><span class="std std-ref">How to recover instances in case of disaster</span></a> on the secondary LXD deployment.</p>
<p>When prompted to choose the pools to scan for unknown volumes, select the storage pool that was configured during the replication setup.</p>
<p>The instances and custom storage volumes are then recovered on the secondary LXD deployment. Use <code class="docutils literal notranslate"><span class="pre">lxc</span> <span class="pre">start</span></code> to bring up the instances that were originally running on the primary deployment.</p>
<section id="add-missing-pool">
<span id="disaster-recovery-replication-add-pool"></span><h3>Add missing pool<a class="headerlink" href="#add-missing-pool" title="Link to this heading">¶</a></h3>
<p>If the LXD storage pool at the secondary location exists only in the storage array and has not yet been created in LXD (as described in <a class="reference internal" href="#disaster-recovery-replication-entities-pool"><span class="std std-ref">Storage pool</span></a>), you must recover it first.</p>
<p>Use the <code class="docutils literal notranslate"><span class="pre">lxc</span> <span class="pre">storage</span> <span class="pre">create</span></code> command to add the storage pool. This works for both single and clustered LXD deployments. For more information, see: <a class="reference internal" href="../storage_pools/#storage-create-pool"><span class="std std-ref">Create a storage pool</span></a>.</p>
<section id="recover-ceph-rbd-pool">
<span id="disaster-recovery-replication-add-pool-cephrbd"></span><h4>Recover Ceph RBD pool<a class="headerlink" href="#recover-ceph-rbd-pool" title="Link to this heading">¶</a></h4>
<p>LXD’s <a class="reference internal" href="../../reference/storage_ceph/#storage-ceph"><span class="std std-ref">Ceph RBD driver</span></a> uses a <em>placeholder</em> volume to reserve the storage pool and ensure it isn’t used more than once. For replication, this behavior can be ignored because the replicated pool must be recovered at the secondary location. To allow this, set <a class="configref reference internal" href="../../reference/storage_ceph/#storage-ceph-pool-conf:source.recover"><code class="docutils literal notranslate"><span class="pre">source.recover</span></code></a> to ignore the placeholder volume if it was also replicated to the secondary location.</p>
<p>When creating the storage pool in a LXD cluster, make sure to add the <code class="docutils literal notranslate"><span class="pre">source.recover=true</span></code> setting when creating the pending storage pools per cluster member as this setting is cluster member specific.</p>
</section>
</section>
</section>
<section id="demote-secondary-and-fail-back-to-primary-location">
<span id="disaster-recovery-replication-failback"></span><h2>Demote secondary and fail back to primary location<a class="headerlink" href="#demote-secondary-and-fail-back-to-primary-location" title="Link to this heading">¶</a></h2>
<p>Once the primary location is back online, the storage layer ensures data consistency because the secondary storage array
now acts as the source of truth and no longer receives updates from the primary array. As long as this replication flow is not reversed, the running instances and custom volumes on the secondary location are protected.</p>
<div class="warning admonition">
<p class="admonition-title">Risk of network conflicts</p>
<p>Network collisions might occur if the primary location comes back online and LXD automatically starts up any instances. This issue is outside the scope of storage replication, but you must place appropriate measures to prevent such conflicts.</p>
</div>
<p>Service failback to the primary location can be performed in two ways. In both cases, the operations on the storage layer are identical, but the correct approach depends on the state of the instances and custom volumes on the secondary location:</p>
<ol class="arabic simple">
<li><p>Shut down the resources on the secondary location and bring them back up on the primary
This approach requires that the configuration of the recovered instances and volumes on the secondary location has not been modified in any way. Any modifications would not be reflected in the database of the primary LXD deployment and might cause unexpected side effects.</p></li>
<li><p>Set up a fresh deployment of LXD on the primary location and repeat the steps outlined in <a class="reference internal" href="../disaster_recovery/#disaster-recovery"><span class="std std-ref">How to recover instances in case of disaster</span></a>.
This approach repeats the same process performed for the initial disaster recovery, but in reverse.</p></li>
</ol>
<p>After choosing an approach, demote the storage array at the secondary location and promote the array at the primary location. Refer to <a class="reference internal" href="#disaster-recovery-replication-setup"><span class="std std-ref">Set up storage replication</span></a> for details on how to perform these actions.</p>
<p>Finally, either bring up the instances on the primary deployment using <code class="docutils literal notranslate"><span class="pre">lxc</span> <span class="pre">start</span></code>, or recover them first to make them known again to the primary deployment before starting them.</p>
</section>
<section id="related-topics">
<h2>Related topics<a class="headerlink" href="#related-topics" title="Link to this heading">¶</a></h2>
<p>How-to guides:</p>
<ul class="simple">
<li><p><a class="reference internal" href="../disaster_recovery/#disaster-recovery"><span class="std std-ref">How to recover instances in case of disaster</span></a></p></li>
<li><p><a class="reference internal" href="../cluster_recover/#cluster-recover"><span class="std std-ref">How to recover a cluster</span></a></p></li>
<li><p><a class="reference internal" href="../../storage/#storage"><span class="std std-ref">Storage</span></a></p></li>
</ul>
<p>Explanation:</p>
<ul class="simple">
<li><p><a class="reference internal" href="../../explanation/storage/#exp-storage"><span class="std std-ref">Storage pools, volumes, and buckets</span></a></p></li>
</ul>
<p>Reference:</p>
<ul class="simple">
<li><p><a class="reference internal" href="../../reference/storage_drivers/#storage-drivers"><span class="std std-ref">Storage drivers</span></a></p></li>
</ul>
</section>
</section>

        </article>
      </div>
      <footer>
        
   

<div class="related-pages">
  
  
      
  
  
  <a class="next-page" href="../snap/">
        <div class="page-info">
          <div class="context">
            <span>Next</span>
          </div>
          <div class="title">How to manage the LXD snap</div>
        </div>
        <svg class="furo-related-icon"><use href="#svg-arrow-right"></use></svg>
      </a>
    <a class="prev-page" href="../disaster_recovery/">
        <svg class="furo-related-icon"><use href="#svg-arrow-right"></use></svg>
        <div class="page-info">
          <div class="context">
            <span>Previous</span>
          </div>
          
            <div class="title">How to recover instances in case of disaster</div>
          
        </div>
      </a>
</div>
<div class="bottom-of-page">
  <div class="left-details">
    <div class="copyright">
        &copy; 2014-2026 AGPL-3.0, LXD contributors 
    </div><div class="last-updated">
      Last updated on Feb 12, 2026</div>
  </div>
  <div class="right-details">
    
      <a href="" class="js-revoke-cookie-manager muted-link">Manage your tracker settings</a>
</div>

      </footer>
    </div>
    <aside class="toc-drawer">
      
<div class="toc-sticky toc-scroll">
   
    <div class="toc-title-container">
      <span class="toc-title">
       Contents
      </span>
    </div>
    <div class="toc-tree-container">
      <div class="toc-tree">
        <ul>
<li><a class="reference internal" href="#">How to perform disaster recovery with storage replication</a><ul>
<li><a class="reference internal" href="#set-up-entities-at-each-location">Set up entities at each location</a><ul>
<li><a class="reference internal" href="#storage-pool">Storage pool</a></li>
<li><a class="reference internal" href="#networks-and-profiles">Networks and profiles</a></li>
</ul>
</li>
<li><a class="reference internal" href="#set-up-storage-replication">Set up storage replication</a><ul>
<li><a class="reference internal" href="#known-storage-array-limitations">Known storage array limitations</a><ul>
<li><a class="reference internal" href="#powerflex">PowerFlex</a></li>
<li><a class="reference internal" href="#ceph-rbd">Ceph RBD</a></li>
</ul>
</li>
</ul>
</li>
<li><a class="reference internal" href="#verify-replication">Verify replication</a></li>
<li><a class="reference internal" href="#promote-secondary-location-after-disaster">Promote secondary location after disaster</a></li>
<li><a class="reference internal" href="#recover-resources">Recover resources</a><ul>
<li><a class="reference internal" href="#add-missing-pool">Add missing pool</a><ul>
<li><a class="reference internal" href="#recover-ceph-rbd-pool">Recover Ceph RBD pool</a></li>
</ul>
</li>
</ul>
</li>
<li><a class="reference internal" href="#demote-secondary-and-fail-back-to-primary-location">Demote secondary and fail back to primary location</a></li>
<li><a class="reference internal" href="#related-topics">Related topics</a></li>
</ul>
</li>
</ul>

      </div>
    </div>
   
    
  </div>

    </aside>
  </div>
</div><script src="../../_static/jquery.js?v=5d32c60e"></script>
    <script src="../../_static/_sphinx_javascript_frameworks_compat.js?v=2cd50e6c"></script>
    <script src="../../_static/documentation_options.js?v=a5603611"></script>
    <script src="../../_static/doctools.js?v=9a2dae69"></script>
    <script src="../../_static/sphinx_highlight.js?v=dc90522c"></script>
    <script src="../../_static/scripts/furo.js?v=46bd48cc"></script>
    <script src="../../_static/clipboard.min.js?v=a7894cd8"></script>
    <script src="../../_static/copybutton.js?v=b01cb6f2"></script>
    <script src="../../_static/config-options.js"></script>
    <script src="../../_static/design-tabs.js?v=f930bc37"></script>
    <script src="../../_static/js/bundle.js?v=a4d88309"></script>
    <script src="../../_static/header-nav.js?v=e117ad08"></script>
    <script src="../../_static/github_issue_links.js?v=32bb732f"></script>
    
<script>
  const github_url = "https://github.com/canonical/lxd";
</script>
</body>
</html>