Why is the hard disk drive NOT as fast as manufacturer advertised?
Advertised transfer rates are based on the fastest speed at which the drive can send data across the ribbon cable from the drive buffer. The transfer stops every time the buffer re-fills. This process continues until a command is complete. Data transfer rates differ as much as system configurations. The one thing that analysts have control of is the speed at which data transmits across the data ribbon cable from the drive’s buffer.
