I went into review services like 2 days ago, and at the bottom under repository sync, I clicked "process now".
It took like 2 days of going through.

What does this do? Because I just ended up with an error stating disk space was low so it stopped.

Now, my disk space is kinda low on that drive, however I am curious.. how much did Hydrus fill up? My hydrus folder shows it's like 90gb, but if I go check how boned am I, it shows that I only have 50gb worth of files.

Did Hydrus use 40gb of space for a repo???