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Gnome volume manager9/4/2023 Note that merging multiple disks into a single volume can be a bad idea if you’re not creating backups. A group of physical volumes and logical volumes is known as a “volume group.” A typical system will just have a single volume group. Your operating system would just see a 2 TB volume, and LVM would deal with everything in the background. For example, you could combine those two 1 TB disks into a single 2 TB partition. You could then create “logical volumes” based on these physical volumes. Instead of the traditional partition on a disk, LVM would treat the disks as two separate “physical volumes” after you initialize them. LVM provides a layer of abstraction over this. You’d have to have at least two partitions on these disks, and each of these partitions would be 1 TB in size. For example, your computer might have two hard drives inside it, each 1 TB in size. In a nutshell, it provides a layer of abstraction between your physical disks and the partitions presented to your operating system. RELATED: How to Manage and Use LVM (Logical Volume Management) in Ubuntu There shouldn’t be a noticeable performance penalty here - LVM is implemented right down in the Linux kernel. LVM is potentially more complex, which could cause problems if you need to recover your data later - especially if you’re not that experienced with it. But, if you want to do more advanced things later, LVM can help. To be perfectly honest, the average Ubuntu desktop user probably won’t realize whether they’re using LVM or not. Unlike with typical partitions, you don’t have to shut down your system, boot from a live CD or USB drive, and resize your partitions while they aren’t in use. As the installer says, this allows you to resize partitions, create snapshots, merge multiple disks into a single logical volume, and so on - all while the system is running. Ubuntu makes this easy to enable with a quick click, but this option isn’t enabled by default. The first question is whether you even want to use LVM with your Ubuntu installation. Should You Use LVM With Your New Ubuntu Installation?
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