LVM Management

Create Volume from Disk

lsblk
lsblk -f

Create or format the device (WIPE ALL PREVIOUS DATA).

Update sdX to appropriate name.

sudo fdisk /dev/sdX
> Press 'g' to create gpt formated
> Press 'n' to create new partition
> Enter partition table information
> Enter 't' to select partition type
> Enter 'L' to see all types
> Select 'Linux LVM' id number i.e. '30'
> Enter 'p' to print partition table
> Press 'w' to save partition table

Create physical volume

sudo pvcreate /dev/sdX1
sudo pvdisplay
sudo vgcreate vg-data /dev/sdX1

Create logical volume

sudo lvcreate --name lv-data -l 100%FREE vg-data
sudo lvdisplay

Make filesystem

sudo mkfs.xfs /dev/vg-data/lv-data
# sudo mkfs.xfs -f /dev/vg-data/lv-data

sudo mkdir /appdata
sudo mount /dev/vg-data/lv-data /appdata

Mount storage device on startup

sudo vi /etc/fstab

# <file system>       <mount point>    <type>   <options>   <dump>  <pass>
/dev/vg-data/lv-data    /appdata        xfs     defaults      0       2

sudo systemctl daemon-reload

Extend Volume from Disk

Create partition

Volume group

sudo vgs
sudo vgscan

Create or format the device

sudo fdisk /dev/sdY
> Press 'g' to create gpt formated
> Press 'n' to create new partition
> Enter partition table information
> Enter 't' to select partition type
> Enter 'L' to see all types
> Enter '30' for Linux LVM
> Enter 'p' to print partition table
> Press 'w' to save partition table

Create physical volume

sudo pvcreate /dev/sdY1
sudo pvdisplay
sudo vgextend vg-data /dev/sdY1

Logical volume

sudo lvs
sudo lvscan

Extend volume

sudo lvextend -l +100%FREE /dev/vg-data/lv-data
# sudo lvextend -L +5G /dev/vg-data/lv-data

Extend xfs partition

sudo xfs_growfs /dev/vg-data/lv-data

Extend ext4 partition

sudo resize2fs /dev/vg-data/lv-data

Cleanup

Backup data from mount point

• /appdata
• /disk

Unmount volume

sudo umount /dev/vg-data/lv-data

Remove volume

sudo lvremove /dev/vg-data/lv-data