Windows defaults to maintaining its Page File on the System Drive. However, running Windows within VirtualBox and trying to maintain snapshots, this configuration seems like it could create a lot of overhead both in processing and storage with frequent writes to the Page File.
Ideally, we could share some of the Host's Virtual Memory with the Guest, but I doubt Windows will ever sufficiently abstract their Virtual Memory handling. Unfortunately, Microsoft has so tied it to the system drive that in Windows 10, at least some of the Virtual Memory has to reside on the system drive for core dumps. Even if you disable core dumps and configure Windows to use a separate drive exclusively, it will give you an error and create a Page File on the system drive.
Do people have any reasonable recommendations?
At the moment, I'm trying to maintain a minimal page file on the System Drive and the rest on a separate VDI disk, but I can't really tell if Windows is using it correctly.