As a matter of fact, most computer users only use about 20% files in 80% time, that means most of the content on your hard disk keeps in a dormant state in most of the time. By placing the rarely used files/folders onto the slower tracks on your drive (i.e.: near the center of the circle) and moving the frequently used ones to the areas that can be quickly accessed (external rim), we are able to realize the real optimization to disk performance.

Bad sector (bad track) is one of the most common failures of mechanical hard disk (HDD), which usually characterizes hard disk reads/writes slow, system prompts "... I/O error", program gives "cyclic redundancy check (CRC) error", etc. In these cases, we need use some specially designed tools to correctly detect whether our hard disk has had bad sectors or not, and nip in the bud.

AS SSD Benchmark is a lightweight performance test tool specially designed for SSD (Solid State Drive) from Germany. It can be used to test all key performance of your SSD, such as continuous reading and writing, 4K alignment (small file transfer), 4 KB random read and write as well as response time, etc. And finally gives the comprehensive score of your SSD.

ATTO Disk Benchmark is a simple and easy to use storage system performance (especially for transfer rate - Read & Write) measuring tool.