On 03/18/2012 10:34 AM, madunix at gmail.com wrote: > I need to shrink /home(755G) to 150GB and use free space to add to the > existing /(50G). ... > Need to have the step, can this be done online or need to go offline > (umount) the file systems. To shink an ext3 filesystem, it'll have to be offline. Start by identifying and terminating any applications with files open on /home using "fuser -vm /home/". Once there are no open files, you can unmount the filesystem and use "fsadm resize /dev/mapper/vg_web-lv_home755G 150G" to shrink the filesystem.