https://docs.ayshell.dev/tags/file-systems/Recent content in File-Systems on DocumentationHugo -- 0.147.5enSun, 20 Jul 2025 19:35:31 +0530https://docs.ayshell.dev/posts/linux/file-systems/lvm/Sun, 20 Jul 2025 19:35:31 +0530https://docs.ayshell.dev/posts/linux/file-systems/lvm/<h1 id="what-is-lvm">What is LVM?</h1> <p><strong>LVM</strong> is a special tool in Linux that let&rsquo;s you manage disk storage in much more flexible way than traditional partitions.</p> <p><em>Think of it as turning multiple hard drives into a big, flexible stroage pool that you can split, resize, or grow whenever you want, without worrying about the limits of classic disk partitions</em>.</p> <h1 id="why-use-lvm">Why Use LVM?</h1> <ul> <li><strong>Resize storage easily</strong>: You can expand or shrink volumes without reformatting or losing data.</li> <li><strong>Combine multiple disks</strong>: Make many drives look like one big storage area.</li> <li><strong>Add more space anytime</strong>: Plug in new hard drive and add its space instantly.</li> <li><strong>Move or migrate data</strong>: Shift storage between drives with little downtime.</li> <li><strong>Take snapshots</strong>: Save the exact state of you data at a moment in time, which helps with backups.</li> </ul> <h1 id="practical-example">Practical Example</h1> <h2 id="classic-partitioning-without-lvm">Classic Partitioning (without LVM)</h2> <ul> <li>You have 100GB disk with <code>/home</code> and <code>/var</code> partitions.</li> <li><code>/home</code> fills up, while <code>/var</code> has lots of free space.</li> <li><strong>Problem</strong>: You can&rsquo;t take space from <code>/var</code> and give it to <code>/home</code> without migrating, deleting, repartitioning or copying data aroud. <em>Which is possible but risky and time-consuming</em>.</li> </ul> <h2 id="with-lvm">With LVM</h2> <p>Let&rsquo;s say you have two physical disks:</p>https://docs.ayshell.dev/posts/linux/file-systems-storage/Wed, 18 Jun 2025 16:12:05 +0530https://docs.ayshell.dev/posts/linux/file-systems-storage/How to manage file systems and storage in Linux operating systems.