How to Delete/Remove LVM (Logical) Volume in Linux

If the LVM volume (logical volume) is no longer required to use by LVM on the system.

You can remove/delete it with the lvremove command using the following steps.

But make sure the LVM volume does not contain any data.

If yes, please make sure to back up that data before proceeding with LVM removal.

To demonstrate this, we will remove “lv001” from the volume group “vg01”. The LV is mounted on the mount point /lvmtest.

Use the df command to check if the LVM volume is containing any data. If yes, then backup the data.

# df -h /lvmtest

Filesystem Size Used Avail Use% Mounted on
/dev/mapper/vg01-lv001 15360M 34M 15326M 4% /lvmtest

Alternatively, you can verify this using the lvs or lvdisplay command as follows.

# lvs
# lvdisplay /dev/mapper/vg01-lv001

Firs delete the entry of the mount point from the /etc/fstab file.

# vi /etc/fstab
/dev/mapper/vg01-lv001 /lvmtest ext4 defaults 0 0

Unmount the mount point using the umount command.

# umount /lvmtest

Disable the “lv001” logical volume.

# lvchange -an /dev/vg01/lv001
# lvchange -an /dev/mapper/vg01-lv001

Finally delete the “lv001” logical volume.

# lvremove /dev/vg01/lv001
# lvremove /dev/mapper/vg01-lv001

Do you really want to remove active logical volume "lv001"? [y/n]: y
  Logical volume "lv001" successfully removed

If there is no logical volumes associated with volume group and no more required, then remove that as well.

Disable the “vg01” volume group.

# vgchange -an vg01

Delete the “vg01” volume group.

# vgremove vg01

Volume group "officevg" successfully removed

Delete physical volumes used for volume group “vg01”.

# pvremove /dev/sdb /dev/sdc

Labels on physical volume "/dev/sdb" successfully wiped.
Labels on physical volume "/dev/sdc" successfully wiped.

About Magesh Maruthamuthu

Love to play with all Linux distribution

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