Those number looks quite good imo.
Long story short, nodes on low capacity drives won’t break even on live stored data, cold storage or whatever its called… but with high egress they may payoff all the hardware and expenses in a single month in theory xD
ofc if one is running a small system, and we just look at the basics… 1.5$ pr TBm for storage
that means that even 1TB hdd which uses less than 10watts for regular 7200rpm drives anyways.
my local costs for 10watts running for a month comes out to about 2.2$
meaning if i run a 1TB drive, and assume only “cold storage” then it requires egress to break even.
so with a 2TB drive the math is about the same, just double the capacity, and thus something like 2x1.5$ = 3$ and then you need to add internet costs, server electricity, hardware costs/wear
so really in any small node you are at the mercy of the egress profits, the TBm basically covers keeping a 2TB drive running and wear and tear on it or something like that…
ofc if you are lucky and win the egress lottery then lets say you have like 50mbit upload internet bandwidth, and storj pulls some egress for a full month at lets say 80% capacity… 40mbit, which is 4.8MB/s x 3600sec in an hour
17.28 GB/h so 415GB pr day so meaning one could push out like 12TB/month egress
meaning 12x20$ so 240$
ofc that is grossly unrealistic, i mean a 2TB node on a 50mbit internet connection running of a RPI is worth less than that, so it wouldn’t make much sense… but in theory it could happen.
assume that you are getting data mostly for long term storage, and then be pleasantly surprised…