There are endless amount of information about Sia mining with gpu. How ever i havent seen anything about sia storage nodes. Are sia nodes pure donations no mining what so ever ?
The concept is that nodes get rewarded for the service they provide (storing data) in Siacoins (SC). Siacoins can be mined, but this is two different things, i.e. the purpose of a node is to store information, not to mine coins.