LVM disk vanished from db3.staging.gitlab.com
Today while trying to restore staging using a production backup the disk `/var/opt/gitlab` vanished. This happened while running `pg_restore`, resulting in this process failing.
Output of `df -h` at the moment:
```
yorickpeterse@db3:/var/opt/gitlab/postgresql/dbdump$ df -h
Filesystem Size Used Avail Use% Mounted on
udev 28G 0 28G 0% /dev
tmpfs 5.6G 417M 5.1G 8% /run
/dev/sda1 29G 6.7G 22G 24% /
tmpfs 28G 0 28G 0% /dev/shm
tmpfs 5.0M 0 5.0M 0% /run/lock
tmpfs 28G 0 28G 0% /sys/fs/cgroup
/dev/sdb1 111G 60M 105G 1% /mnt
tmpfs 5.6G 0 5.6G 0% /run/user/1101
tmpfs 5.6G 0 5.6G 0% /run/user/1025
tmpfs 5.6G 0 5.6G 0% /run/user/1016
```
Output of `lvs`:
```
LV VG Attr LSize Pool Origin Data% Meta% Move Log Cpy%Sync Convert
gitlab_var gitlab_vg owi-a-s--- 1023.00g
snap gitlab_vg swi-Ios--- 250.00g gitlab_var 100.00
```
issue