How to extend or reduce a File System with LVM Linux

Before Reduce a File System Take a Backup in order to restore the information

LVM Reduce a File System

  #umount -f /test
  #lvdisplay
  #e2fsck -f /dev/vg_root/lv_test
  #lvreduce /dev/vg_root/lv_test -L 3G
  #mkfs.ext3 /dev/vg_root/lv_test
  #e2fsck -f /dev/vg_root/lv_test
  #mount /test
  #df -h

LVM resize a File System

  #cd /Web
  #ls (to check files)
  #vgdisplay
  #df -h /Web
  #lvextend /dev/mapper/vg_root-lv_web -L +19G
  #resize2fs /dev/mapper/vg_root-lv_web
  #df -h

Regards
Roger