I have two physical hard drives on a Linux system (server / hosting), and I created a logical volume from sda3 (partition on disk A) and sdb (the whole disk B). I then mounted it on /home directory, and when I enter:
du -sh /home
...this is showing a size of 20K, and it should be around 3.6TB in size. When I enter:
...I get the correct values. So I am assuming that the size is right, but it just does not show with this command, for some reason. I was reading about resize2fs command, but I am not sure if this is what I would need here.