This is not mining. The difference is that since the services of your node are used by actual customers, you wil not be able to utilize the full capabilities of your node.
I have a two year old node, it has 18TB of data and gets 2-3TB egress per month. This totals $50-60/month. My node always had free space.
However, my noe took that long to accumuate all that data. You probably will not fill 60TB any time soon.
For first couple of months your node will be barely used (vetting period) and you wil get almost nothing (also because of the held amount). Later the node will begin to accumulate data and you will start to get some money for that.
I suggest you use the remaining space for chia or something else in the mean time.