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HOWTO: Understand And Use The Logical Volume Manager (LVM) On Oracle Linux (Doc ID 858497.1)

Last updated on APRIL 21, 2020

Applies to:

Linux OS - Version Oracle Linux 4.4 and later
Oracle Cloud Infrastructure - Version N/A and later
Linux x86-64
Linux x86


The Logical Volume Manager (LVM) is a flexible file system organization tool for the Linux operating system.  LVM is used to decouple physical device organization from the perceived file system organization, simplifying the daily management of a system.  This article is intended to help system administrators to understand the concept of LVM and use LVM to manage space on mass storage devices.


This article summarizes the basic concept of the Logical Volume Manager version 2 (or LVM2) which is Linux 2.6 kernel based.  LVM2 is upwardly compatible with the original Logical Volume Manager 1 (LVM1) commands and meta-data.


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In this Document
 1. Basic Information
 1.1 Benefits of Logical Volume Management
 1.2 Concept
 2. Setting up LVM
 2.1 Installation
 2.2 Load kernel module
 2.3 Configuration
 2.4 Examples of  Tasks
 2.4.1 One LVM Volume On Three SCSI disks
 2.4.2 Extending An LVM-based Filesystem
 2.4.3 Removing A Failed Disk From A Logical Volume
 3. Using LVM With Multipathed Devices (device-mapper)
 4. Using LVM With OCFS/OCFS2
 5. Notice

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