As you can see here my root volume on / shows full via df -h.
Filesystem Size Used Avail Use% Mounted on
udev 16G 0 16G 0% /dev
tmpfs 3.2G 1.6M 3.2G 1% /run
/dev/mapper/ubuntu--vg-ubuntu--lv 196G 185G 1009M 100% /
tmpfs 16G 0 16G 0% /dev/shm
tmpfs 5.0M 4.0K 5.0M 1% /run/lock
tmpfs 16G 0 16G 0% /sys/fs/cgroup
/dev/nvme0n1p2 976M 300M 609M 34% /boot
/dev/nvme0n1p1 511M 5.3M 506M 2% /boot/efi
/dev/loop0 56M 56M 0 100% /snap/core18/2066
/dev/loop1 56M 56M 0 100% /snap/core18/2074
/dev/loop2 33M 33M 0 100% /snap/snapd/12704
/dev/loop3 71M 71M 0 100% /snap/lxd/21029
/dev/loop5 33M 33M 0 100% /snap/snapd/12398
/dev/loop4 68M 68M 0 100% /snap/lxd/20326
192.168.1.10:/volume1/metrics 22T 5.5T 17T 26% /metrics
192.168.1.10:/volume1/media 22T 5.5T 17T 26% /data
tmpfs 3.2G 0 3.2G 0% /run/user/1000
When I look at the contents of the directories via ncdu I see the following.
5.3 TiB [##########] /data
11.3 GiB [ ] /var
8.0 GiB [ ] swap.img
5.9 GiB [ ] /home
2.9 GiB [ ] /usr
1.0 GiB [ ] /snap
732.1 MiB [ ] /metrics
302.6 MiB [ ] /boot
5.3 MiB [ ] /etc
1.5 MiB [ ] /run
76.0 KiB [ ] /root
60.0 KiB [ ] /tmp
16.0 KiB [ ] /opt
e 16.0 KiB [ ] /lost+found
e 4.0 KiB [ ] /srv
e 4.0 KiB [ ] /mnt
e 4.0 KiB [ ] /media
e 4.0 KiB [ ] /cdrom
. 0.0 B [ ] /proc
0.0 B [ ] /sys
0.0 B [ ] /dev
@ 0.0 B [ ] libx32
@ 0.0 B [ ] lib64
@ 0.0 B [ ] lib32
@ 0.0 B [ ] sbin
@ 0.0 B [ ] lib
@ 0.0 B [ ] bin
We can ignore /data, it's just storage mounted via NFS. But the rest of the storage that's shown is roughly ~30GB. Not 185 as reported by du.
I've rebooted and done a full shutdown to purge any transient logs.
The output of sudo lsof +L1 shows the following:
COMMAND PID USER FD TYPE DEVICE SIZE/OFF NLINK NODE NAME
none 877 root txt REG 0,1 17032 0 32951 / (deleted)
I'm not sure what else or where else to look beyond this. I can expand the logical volume but I don't think that's the solution here.
