Скачать или смотреть How to extend a Linux LVM partition in Linux VM

How to extend a Linux LVM partition in Linux VM

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.

LVM is used for the following purposes:

Creating single logical volumes of multiple physical volumes or entire hard disks (somewhat similar to RAID 0, but more similar to JBOD), allowing for dynamic volume resizing.

Managing large hard disk farms by allowing disks to be added and replaced without downtime or service disruption, in combination with hot swapping.

On small systems (like a desktop), instead of having to estimate at installation time how big a partition might need to be, LVM allows filesystems to be easily resized as needed.

Performing consistent backups by taking snapshots of the logical volumes.
Encrypting multiple physical partitions with one password.

LVM can be considered as a thin software layer on top of the hard disks and partitions, which creates an abstraction of continuity and ease-of-use for managing hard drive replacement, repartitioning and backup.











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#linux #LVM#VM