storage is 1.3TB as you can see on fdisk, but on /dev/mapper/debian--vg-root is only showing 119GB
root@mx:~# fdisk -l
root@mx:~# df -lDisk /dev/sda: 1.3 TiB, 1395864371200 bytes, 2726297600 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disklabel type: dos
Disk identifier: 0x1652c7ed
Device Boot Start End Sectors Size Id Type
/dev/sda1 * 2048 499711 497664 243M 83 Linux
/dev/sda2 501758 251656191 251154434 119.8G 5 Extended
/dev/sda5 501760 251656191 251154432 119.8G 8e Linux LVM
Disk /dev/mapper/debian--vg-root: 114.9 GiB, 123337703424 bytes, 240893952 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk /dev/mapper/debian--vg-swap_1: 4.9 GiB, 5251268608 bytes, 10256384 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
root@mx:~# pvdisplayFilesystem 1K-blocks Used Available Use% Mounted on
/dev/dm-0 118425900 16125332 96261836 15% /
udev 10240 0 10240 0% /dev
tmpfs 2004064 213800 1790264 11% /run
tmpfs 5010156 88 5010068 1% /dev/shm
tmpfs 5120 0 5120 0% /run/lock
tmpfs 5010156 0 5010156 0% /sys/fs/cgroup
/dev/sda1 240972 33620 194911 15% /boot
tmpfs 1002032 12 1002020 1% /run/user/1000
tmpfs 1002032 0 1002032 0% /run/user/0
root@mx:~# vgdisplay--- Physical volume ---
PV Name /dev/sda5
VG Name debian-vg
PV Size 119.76 GiB / not usable 0
Allocatable yes (but full)
PE Size 4.00 MiB
Total PE 30658
Free PE 0
Allocated PE 30658
PV UUID dXxbLy-2Kf5-kCEh-8gWa-JBKl-5Arx-h3zGEl
--- Volume group ---
VG Name debian-vg
System ID
Format lvm2
Metadata Areas 1
Metadata Sequence No 6
VG Access read/write
VG Status resizable
MAX LV 0
Cur LV 2
Open LV 2
Max PV 0
Cur PV 1
Act PV 1
VG Size 119.76 GiB
PE Size 4.00 MiB
Total PE 30658
Alloc PE / Size 30658 / 119.76 GiB
Free PE / Size 0 / 0
VG UUID 6ckK2L-IaM8-fZOK-i6qD-DPpN-VdBz-KpZTbT