extend
lvresize -L +128G /dev/vg01/mx-home #lvresize -l +100%FREE /dev/vg1/trusty-disk e2fsck -f /dev/vg01/mx-home resize2fs -p /dev/vg01/mx-home e2fsck -f /dev/vg01/mx-home
reduce / shrink
e2fsck -f /dev/vg01/video-media # start screen, resize2fs can take a long resize2fs /dev/vg01/video-media 1T lvreduce -L 1T /dev/vg01/video-media
lvextend (online)
lvextend -r -L+20G /dev/mapper/data-log