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In Linux, Logical Volume Manager (LVM) is a device mapper framework that provides logical volume management for the Linux kernel. Most modern Linux distributions are LVM-aware to the point of being able to have their root file systems on a logical volume .
With implementations that are solely volume management, such as Core Storage and Linux LVM, separating and abstracting away volume management from the file system loses the ability to easily make storage decisions for particular files or directories. For example, if a certain directory (but not the entire file system) is to be permanently moved ...
The device mapper is a framework provided by the Linux kernel for mapping physical block devices onto higher-level virtual block devices.It forms the foundation of the logical volume manager (LVM), software RAIDs and dm-crypt disk encryption, and offers additional features such as file system snapshots.
Potential users can freely download Oracle Linux through Oracle's server, or from a variety of mirror sites, and can deploy and distribute it without cost. [6] The company's Oracle Linux Support program aims to provide commercial technical support, covering Oracle Linux and existing RHEL or CentOS installations but without any certification ...
This is an accepted version of this page This is the latest accepted revision, reviewed on 2 March 2025. Family of Unix-like operating systems This article is about the family of operating systems. For the kernel, see Linux kernel. For other uses, see Linux (disambiguation). Operating system Linux Tux the penguin, the mascot of Linux Developer Community contributors, Linus Torvalds Written in ...
LVM can stand for: Las Vegas Monorail, a rail transport system in Las Vegas; ... Logical Volume Manager, an implementation of logical volume management in the Linux ...
With LVM, a logical volume is a separate block device, while a Btrfs subvolume is not and it cannot be treated or used that way. [64] Making dd or LVM snapshots of btrfs leads to data loss if either the original or the copy is mounted while both are on the same computer. [66]
Operating within the Linux kernel's block layer, DRBD is essentially workload agnostic. A DRBD can be used as the basis of: A conventional file system (this is the canonical example), a shared disk file system such as GFS2 or OCFS2, [12] [13] another logical block device (as used in LVM, for example),