2022
https://ostechnix.com/lvm-linux-commands/
2021
https://fedoramagazine.org/my-fedora-linux-home-network-part-1-the-data-server/
https://linuxhandbook.com/lvm-guide/
2015
https://www.tecmint.com/create-lvm-storage-in-linux

72|LXF205 - LVM
72|LXF202 - LVM

wiki:
https://wiki.gentoo.org/wiki/LVM
https://wiki.gentoo.org/wiki/LVM/ru

guide
https://edumotivation.com/what-is-lvm-logical-volume-manager/
    https://www.reddit.com/r/commandline/comments/mzilx6/linux_lvm_logical_volume_manager_a_step_by_step/

/boot/grub/grub.cfg
https://wiki.archlinux.org/index.php/GRUB2#LVM

http://serverfault.com/questions/279571/lvm-dangers-and-caveats
http://www.tldp.org/HOWTO/LVM-HOWTO/recipesplitvg.html

https://www.unixmen.com/rhcsa-module-2-log-management-disk-partition-lvm-management/
+ luks

need to boot from USB and then:

sudo lvdisplay ManjaroVG/ManjaroRoot
sudo lvreduce -r -L 48G ManjaroVG/ManjaroRoot
sudo pvdisplay --maps
! there is a FREE gap between Root and Swap
sudo lvremove ManjaroVG/ManjaroSwap
sudo pvdisplay --maps
sudo pvresize --setphysicalvolumesize 64G /dev/sda2
sudo fdisk /dev/sda
    p - print table
    v - verify table
    n - new partition


??? vgreduce
http://askubuntu.com/questions/196125/how-can-i-resize-an-lvm-partition-i-e-physical-volume
http://microdevsys.com/wp/linux-lvm-resizing-partitions/
http://www.ibm.com/developerworks/linux/library/l-resizing-partitions-2/index.html


    cannot resize to <NNNNN> extents as later ones are allocated.

http://unix.stackexchange.com/questions/67702/how-to-reduce-volume-group-size-in-lvm


!!!
http://microdevsys.com/wp/linux-lvm-resizing-partitions/
http://superuser.com/questions/435075/how-to-align-logical-volumes-on-contiguous-physical-extents
http://unix.stackexchange.com/questions/67702/how-to-reduce-volume-group-size-in-lvm
https://www.linux.org.ru/forum/desktop/7218930



GParted Live:

http://gparted.sourceforge.net/liveusb.php
http://gparted.sourceforge.net/download.php
http://sourceforge.net/projects/gparted/files/gparted-live-stable/
http://gparted.sourceforge.net/display-doc.php?name=gparted-live-manual
http://gparted.sourceforge.net/display-doc.php?name=help-manual

Samples:
1. Create a primary partition at /dev/sdb with type 8e (Linux LVM)
sudo pvcreate /dev/sdb1
sudo pvdisplay [-m] [/dev/sdb1]

sudo vgextend VolGroup00 /dev/sdb1

lvdisplay ???
sudo lvextend /dev/VolGroup00/LogVol00 /dev/sdb1

date && sudo resize2fs /dev/VolGroup00/LogVol00 && date

docker-devicemapper-storage:
pvcreate /dev/xvdf1
vgextend centos /dev/xvdf1   # centos - volume group
# vgreduce centos /dev/xvdf1   # centos - volume group
vgcreate vgdocker /dev/xvdf1
lvcreate -l 95%FREE -n lvdocmeta vgdocker
lvcreate -l 100%FREE -n lvdocdata vgdocker
lsblk