xdisk is a storage workload (IO) generator, able to generate multiple streaming or random IO pattern, the block size can be chosen from 512 Byte up to 64 MB; the read-write ratio can be chosen from 0% to 100%. Workload can be distributed across multiple files and multiple LINUX or AIX systems. The output displays the IO/s and throughput (Throughput = IO/s * block size), as well as several other statistics like min, max, average IO read/write response time.