planetmaker@aeolusmaximus:~$ cat /etc/mtab
...
/dev/sda1 /boot ext4 rw,seclabel,relatime,data=ordered 0 0
/dev/mapper/home-home /home ext4 rw,seclabel,relatime,data=ordered 0 0
/dev/mapper/system-home /home/planetmaker/Bilder/database ext4 rw,seclabel,relatime,data=ordered 0 0
...


planetmaker@aeolusmaximus:~$ sudo vgscan
  Reading volume groups from cache.
  Found volume group "home" using metadata type lvm2
  Found volume group "system" using metadata type lvm2

planetmaker@aeolusmaximus:~$ sudo pvscan
  PV /dev/sdc1   VG home            lvm2 [2,73 TiB / 932,19 GiB free]
  PV /dev/sda2   VG system          lvm2 [445,13 GiB / 0    free]
  PV /dev/sdb3                      lvm2 [1,82 TiB]
  Total: 3 [4,98 TiB] / in use: 2 [3,16 TiB] / in no VG: 1 [1,82 TiB]


planetmaker@aeolusmaximus:~$ df -h
Dateisystem             Größe Benutzt Verf. Verw% Eingehängt auf
...
/dev/mapper/system-root  196G     14G  173G    8% /
/dev/sda1                2,0G    307M  1,5G   17% /boot
/dev/mapper/home-home    1,8T    1,7T   35G   98% /home
/dev/mapper/system-home  210G    3,4G  196G    2% /home/planetmaker/Bilder/database
...