RAID upgrade speed comparision

HDTune 2.55 results for 4 x 160, total 0,5 TByte setup:



HDTune 2.55 results for 4 x 750, total 2,2 TByte setup:


Few comments. Some 10% better throughput and 30% better access time at the same CPU load. Main difference: 400+ percent more disk space.