This is why on *nix systems, each directory of the vfs that is intended to accumulate files OR have different mount options is broken-off into its own volume. /

This is why on *nix systems, each directory of the vfs that is intended to accumulate files OR have different mount options is broken-off into its own volume. / /home /usr /usr/local /var /var/log /var/lib/docker /var/lib/postgresql and so on.