Hi Romanz,
Thanks for the answer.
We have 2TB. This include 140k folders and 650k files.
Would the DS716+II be a model with enough juice? It has a Celeron N3160 processor (Passmark:1665; Quad Core 1.6Ghz with burst up to 2.24 GHz) with possibility (hacked) of 8GB of RAM.
If not, would the DS1515+ do the job? It has a Celeron C2538 processor (Quad Core 2.4 GHz) with possibility (hacked) of 16GB of RAM.
If not I think, price wise, we should maybe go the freenas way (or rockstor if Resilio is supported on it)?