LVM: Difference between revisions

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The Logical Volume Manager (LVM) provides means to dynamically organize partitions.

[https://en.wikipedia.org/wiki/Logical_Volume_Manager_(Linux) The Logical Volume Manager] (LVM) provides means to dynamically organize partitions.

== Basic Setup ==

LVM manages three types:

* physical volumes - directly on a ~~physical~~ partition

; Physical volume (PV) : Space reservation consisting of a disk partition, a whole disk, a meta device, or a loopback file.

* volume groups - a group of physical volumes

; Volume group (VG) : Group of physical volumes.

* logical volumes

; Logical volume (LV) : Space reservation inside a volume group, which may be laid across multiple physical volumes.

=== Create a logical volume ===

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# creates a new logical volume named "home" with the size of 10GB (check with lvdisplay)

# makes /dev/pool/home available

lvcreate -L 10G -n home pool

lvcreate --size 10G --name home pool

mkfs.ext4 /dev/pool/home

</syntaxHighlight>

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=== Disko ===

Disko provides means to automatically generate the creation and configuration of logical volumes, see https://github.com/nix-community/disko

[[Disko]] provides means to automatically generate the creation and configuration of logical volumes, see https://github.com/nix-community/disko

[[Category:Filesystem]]

@@ Line 1: / Line 1: @@
-The Logical Volume Manager (LVM) provides means to dynamically organize partitions.
+[https://en.wikipedia.org/wiki/Logical_Volume_Manager_(Linux) The Logical Volume Manager] (LVM) provides means to dynamically organize partitions.
 == Basic Setup ==
 LVM manages three types:
-* physical volumes - directly on a physical partition
+; Physical volume (PV) : Space reservation consisting of a disk partition, a whole disk, a meta device, or a loopback file.
-* volume groups - a group of physical volumes
+; Volume group (VG) : Group of physical volumes.
-* logical volumes
+; Logical volume (LV) : Space reservation inside a volume group, which may be laid across multiple physical volumes.
 === Create a logical volume ===
@@ Line 16: / Line 17: @@
 # creates a new logical volume named "home" with the size of 10GB (check with lvdisplay)
 # makes /dev/pool/home available
-lvcreate -L 10G -n home pool
+lvcreate --size 10G --name home pool
 mkfs.ext4 /dev/pool/home
 </syntaxHighlight>
@@ Line 49: / Line 50: @@
 === Disko ===
-Disko provides means to automatically generate the creation and configuration of logical volumes, see https://github.com/nix-community/disko
+[[Disko]] provides means to automatically generate the creation and configuration of logical volumes, see https://github.com/nix-community/disko
+[[Category:Filesystem]]