https://vallo.cz/tags/pvs/ Recent content in Pvs on vWiki Hugo en © 2025 Rudolf Vallo Sat, 03 May 2025 22:50:08 +0200 https://vallo.cz/posts/migrate_pv_to_other_disk_online/ Sat, 03 May 2025 22:50:08 +0200 https://vallo.cz/posts/migrate_pv_to_other_disk_online/ <h1 id="migrate-volume-group-to-other-disk-online">Migrate volume group to other disk online</h1> <h2 id="before-migration-create-backup-your-data"><strong>Before migration create backup your DATA!</strong></h2> <ol> <li>Check actual status your volume group config</li> </ol> <div class="highlight"><pre tabindex="0" class="chroma"><code class="language-bash" data-lang="bash"><span class="line"><span class="cl">pvs </span></span><span class="line"><span class="cl">vgs </span></span><span class="line"><span class="cl">lvs </span></span></code></pre></div><ol start="2"> <li>Create new PV</li> </ol> <div class="highlight"><pre tabindex="0" class="chroma"><code class="language-bash" data-lang="bash"><span class="line"><span class="cl">pvcreate /dev/mapper/new_device </span></span></code></pre></div><ol start="3"> <li>Add new PV to your VG from <code>vgs</code></li> </ol> <div class="highlight"><pre tabindex="0" class="chroma"><code class="language-bash" data-lang="bash"><span class="line"><span class="cl">vgextend vg_name /dev/mapper/new_device </span></span></code></pre></div><ol start="4"> <li>Move data to new PV</li> </ol> <div class="highlight"><pre tabindex="0" class="chroma"><code class="language-bash" data-lang="bash"><span class="line"><span class="cl">pvmove /dev/mapper/old_device /dev/mapper/new_device </span></span></code></pre></div><ol start="5"> <li>Remove old PV from your VG</li> </ol> <div class="highlight"><pre tabindex="0" class="chroma"><code class="language-bash" data-lang="bash"><span class="line"><span class="cl">vgreduce vg_name /dev/mapper/old_device </span></span></code></pre></div><ol start="6"> <li>Destroy old PV</li> </ol> <div class="highlight"><pre tabindex="0" class="chroma"><code class="language-bash" data-lang="bash"><span class="line"><span class="cl">pvremove /dev/mapper/old_device </span></span></code></pre></div><h3 id="dont-forget-update-initramfs-and-configs">Don&rsquo;t forget update initramfs and configs</h3> <div class="highlight"><pre tabindex="0" class="chroma"><code class="language-bash" data-lang="bash"><span class="line"><span class="cl">/etc/fstab </span></span><span class="line"><span class="cl">/etc/crypttab </span></span><span class="line"><span class="cl">update-initramfs -u </span></span><span class="line"><span class="cl">update-grub </span></span></code></pre></div>