On my storage node I see a bit more than 1 upload every 10 minutes and between that a lot of downloads. I guess your storage node is unvetted. An unvetted node will get only 5% of the uploads. So 1 upload every 3 hours? I don’t know if that expectation is correct.
Have you seen the dashboard API? 100 total audits is the magic line for getting vetted. With the dashboard API you can watch the progress. Storage node dashboard API (v0.19.0)