36 Tb in 9 seconds is very fast, guess these are optimized plots? I am currently optimizing my plots on the main host (a Semi professional QNAP, NAS which has 43 Tb) and it currently takes 45 seconds (un-optimized plots) so nowhere near your speed. I don't think that hardware is rate limiting, it has a dual GB connection (trunked) and it reads to my workstation with 235 MB s (close to the 2 Gbit it should have). The other drives are more of a problem, some reside in old DLINK NAS units which reads at best 15 MB s. Those that are hooked up directly to internal SATA channels are fine (Seconds to read) but one computer has 12 drives hooked up. I don't know how the threading works in the miner (Blagos miner), but it seems that some are read very late. The CPU on that machine is a 2 core i3 so it does not handle threads well.
I did not realize this was a major problem, but I will try to optimize the hardware. Do you have any feeling if internet connection could be limiting (I am on a slow DSL (8 mbit) connection, which is stable but latencies are probably terrible.
I have not optimised the plots,but they are mostly plotted with a Stagger Size of 98304. Like most people it took a while to understand the best way to plot so some of them need replotting. My 36TB is all USB Drives mostly 4TB and a couple of 5TB typically split into 3 or 4 files drive. I have another 6TB on a NAS drive but that takes 35 Seconds to read through.
I will try optimising but not sure that I will gain much, but did get some good gains by having dedicated channels for the drives and not connecting through a hub.
Rich
