MirceaForce, To be honest, SSDs are still a bit too expensive for massive storage... with a 1Gigabit/sec connection, which is about 125 MEGABYTES/sec... very few if any single HDD can sustain such speeds.... A Windows Server 2008 R2 or Server 2012 system is best to fully utilize such speeds w/ utorrent 3.3. Disk stripping would be required, where you can simultaneously write to more than one disk... Also a single 1Gigiabit/s NIC to your server is NOT enough... you should use dual port pci-e x4 Intel discrete NICs connected to a smart switch w/ support for Link Aggregation (10Gigiabit/s NICs/switches are still too expensive). HP smart switches use to be the best value & stability... Also Benchmark your motherboard SATA controllers.... I've noticed only more expensive server motherboardswhich has more than one discrete SATA 3.0 controllers can simultaneously write to several HDDs w/o slowing down. Anyhow, to avoid bottlenecks, you REALLY need to build / rebuild a better computer server for your particular high I/O requirements... disk striping for storage and link aggregation for connectivity is the lowest cost way of getting around your problem.... Even if you change your bittorrent client, you'll still must deal w/ the bottlenecks in your computer system.