The 8 GB sleep image located at /var/vm disappeared from my GrandPerspective graphic representation of macOS 10.13.4 after being there through 10.13.3 because it's been transformed into a
(literal) volume.
Hmmm... Now that /var/vm is a volume, I wonder if swap files are also stored within it along with the sleep image?
I haven't seen mention of it in a
looong time, but I remember people wanting to keep their swap files on a separate volume, and I wonder if Apple has finally caught up?