The workload increase to 256 requests per queue doesn’t affect the overall situation anymore. RAID0 arrays graphs are almost the same as the single HDD graph in proportion to the number of HDDs in the array. It indicates that StorSwitch copes just fine with sorting and transferring the requests to the corresponding HDD. Here we can disregard small performance drops on the 6 and 7 HDD graphs :) RAID5 and RAID10 arrays are fast and their performance is proportional to the number of hard disk drives in the array. Just like in case of 16 requests, RAID5 array of 3 HDDs is kind of standing out here.