Migrate volume group to other disk online#

Before migration create backup your DATA!#

  1. Check actual status your volume group config
pvs
vgs
lvs
  1. Create new PV
pvcreate /dev/mapper/new_device
  1. Add new PV to your VG from vgs
vgextend vg_name /dev/mapper/new_device
  1. Move data to new PV
pvmove /dev/mapper/old_device /dev/mapper/new_device
  1. Remove old PV from your VG
vgreduce vg_name /dev/mapper/old_device
  1. Destroy old PV
pvremove /dev/mapper/old_device

Don’t forget update initramfs and configs# 

/etc/fstab
/etc/crypttab
update-initramfs -u
update-grub