Sequential read/write is a disk access pattern whereby large contiguous blocks of data are read from OR written to adjacent locations on the surface of a storage device. What are sequential and random read/write? It is the process of running software to measure the transfer speeds under various disk access scenarios like sequential and random, and showing the results in MBps that summarize the speed characteristics of a disk. What Kind of Performance Should Users Expect?īenchmarking has been a popular way to test disk speed for years.How to Perform SSD Benchmark Using MiniTool Partition Wizard.MiniTool Partition Wizard makes disk benchmarking rather easy. Disk Benchmark performance measurement tool is frequently used to test any manufacturers RAID controllers, storage controllers, hard drives and SSD.